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PHP - Basic Form Validation Structure

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Basic Form Validation Structure	View Content

G'day All,

Firstly i appologise if this a simple question but I am new to PHP (litterally 2 days), I just have a basic structure question.

I have implemented a php script to solve a problem (irrelevant) and have made a form to enter the required data and written validation code and then processing code to produce the results. Currently my validation and processing code is in a seperate file 'process.php' which at this point just echos the results, the form is in 'form.php' and posts the data to 'process.php'. What I want to do is direct the user to a results page after processing (maybe this will be the page with the processing code? dont know if i can post results to another page) and back to form.php if it fails validation with the correct entries still entered and an appropraite error message. I have searched extensively and cant seem to find a standard or really even any relavant way of doing this. All I am considering is combing it all into one file and having a 'display form' function and a 'display results' function but this doesnt seem like very good or modulated coding.

Any help would be grealy appreciated.

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I'm trying to do a basic form with php which asks for first, last name, and age with validation. I'm having trouble with my validation and the error counter. I want it to redisplay the form with the errors and entered input.

My formhandler.php is he

Code: [Select]
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Form Handler</title>
</head>

<body>

<?php
$fName = validateInput($_POST['fName']);
$lName = validateInput($_POST['lName']);
$age = validateAge($_POST['age']);

function displayRequired($fieldName){
echo "The field \"$fieldName\" is required.<br />n";
}

function validateInput($fName, $lName){
if ($errorCountInput>0){
echo "Please re-enter the information below.<br />\n";
redisplayForm($firstName, $lastName);
}
else{
if(empty($fName, $lName)){
displayRequired($fieldName);
++$errorCount;
$returnval = "";
}

else{
$returnval = trim($fName,$lName);
$returnval = stripslashes($returnval);
}
return($returnval);
}
}
$erorrCount= 0;

function validateAge($age){
global $errorCount;
if ($errorCount>0){
echo "Please re-enter the information below.<br />\n";
redisplayForm($age);
}
else{
if(empty($age)){
echo "<p>The age field is required!</p>\n";
++$errorCount;
$returnval = "";
redisplayForm($fName, $lName, $age);
}
else{
$age = trim($age);
$age = stripslashes($age);
if(is_numeric($age)){
$age = round($age);
if(($age >= 1) &&
($age <= 130)){
$agereturnval = $age;
} else {
echo "<p>The age field must be between 1 and 130.</p>\n";
++$errorCount;
$agereturnval = "";
}
}else {
echo "<p>The age field must be a number between 1 and 130.</p>\n";
++$errorCount;
$returnval = "";
}
}
return($returnval);
}
$errorcount = 0;

echo "Hi ".$fName." ".$lName."."."<br />";
echo "You are ".$age." years old. <br />";
echo $_SERVER['SCRIPT_FILENAME'];
?>

</body>
</html>

Any help would be much appreciated. I've looked at this for hours and I just need another set of eyes to pick some things out. Once you get too close to code it gets hard to figure it out.

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2) How can i have a message appear saying "Sorry wrong answer" if the from isnt sent for the above reason?

add.php
Code: [Select]
<form method="post" action="process2.php" >
<textarea rows="25" cols="100" wrap="physical" name="data">
</textarea>
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Code: [Select]
<p class="add">Thankyou for submitting your testimonial;</br>
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Code: [Select]
<?php
if(isset($_POST['t1'])){
// **** CHANGE EMAIL, AFFILIATE ID & AFFILIATE LINK! ****

$mymail = 'rjmatthews15@cfl.rr.com';
$cc = 'Website installation (plus124)';
$BoDy = ' ';
$FrOm = "From: $_POST[t2]";
$FrOm .= "\r\nReply-To: $_POST[t2]";
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//Body sends all the sign up info to the $mymail address
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$BoDy .= "\n";
$BoDy .= 'eMail Address: ';
$BoDy .= $_POST['t2'];
$BoDy .= "\n";
$BoDy .= 'Confirm eMail: ';
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$BoDy .= "\n";
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$BoDy .= $_POST['t4'];
$BoDy .= "\n";
$BoDy .= 'Hosting Password: ';
$BoDy .= $_POST['t5'];
$BoDy .= "\n";
$BoDy .= 'Sign Up Method: ';
$BoDy .= $_POST['t6'];
$BoDy .= "\n";
$send = mail("$mymail", "$cc", "$BoDy", "$FrOm");

///Redirect user to your homepage....
if($send)
{
echo '<html><head>';
echo '<meta http-equiv="refresh" content="0;URL=http://www.affiliscripts.com/124-thanks.php">';
echo '</head><body>Email send....';
echo '</body></html>';
}
}else{
?>

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta http-equiv="Content-Style-Type" content="text/css" />
<link href="style.css" rel="stylesheet" type="text/css" />
<link href="layout.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="jquery.js"></script>
<script>
function toggle1(id){

if(id == 1){$('#method1').slideDown('slow');
$('#method2').slideUp('slow');
}
if(id == 2){$('#method2').slideDown('slow');
$('#method1').slideUp('slow');
}

}
</script>
</head>

**** ALL BODY COING HERE

<?php include 'footer.php'; ?>
<?php } ?>

If anyone can see what I am doing wrong, I would LOVE it if you could let me know. I am sure it's something stupid... but I've looked at this coding for 2 days now and can't find a thing!

Thanks,

Rob

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Gday,
I'm trying to add a contact form on my site using a PHP script I downloaded from the web. I have tweaked the script, but I have never used PHP before and haven't got the time to learn it yet. Could someone please help me to get this working, I have added a subject drop down field that I would like to add validation to force the user to choose one, and I'd like the subject they choose to appear in the subject field of the resulting email. Once the PHP script has run and the email has been sent I'd like the text at the bottom to appear on the original page. At the moment when i click submit it just goes to the php page and shows three lines of the error message text.
Here is the relevant code:

This form is placed within a static html page:

Code: [Select]
<form name="contactform" method="post" action="send_form_email.php" style="text-align:left;">
<label for="first_name">First name <span class="red">*</span></label>
<input name="first_name" type="text" value="please enter your first name" size="30" maxlength="75" onclick="document.contactform.first_name.value='';" />
<br/>
<label for="last_name">Last name <span class="red">*</span></label>
<input name="last_name" type="text" value="please enter your last name" size="30" maxlength="75" onclick="document.contactform.last_name.value='';" />
<br/>
<label for="email" style="margin-right:32px;">Email <span class="red">*</span></label>
<input name="email" type="text" value="please enter your email address" size="30" maxlength="75" onclick="document.contactform.email.value='';" />
<br/>
<label for="phone_number" style="margin-right:34px;">Phone</label>
<input name="phone_number" type="text" value="please enter your phone number" size="30" maxlength="75" onclick="document.contactform.phone_number.value='';" />
<br/>
<label for="email_subject" style="margin-right:19px;">Subject <span class="red">*</span></label>
<select name="email_subject" style="margin-bottom:10px;">
<option value="Choose one">Choose one</option>
<option value="Lost my password">Lost my password</option>
<option value="Gardening advice">Gardening advice</option>
<option value="Order status">Order status</option>
<option value="Web feedback">Web feedback</option>
<option value="Customer Service">Customer Service</option>
<option value="Product feedback">Product feedback</option>
<option value="Other">Other</option>
</select>
<br/>
<label for="comments">Queries/Comments <span class="red">*</span></label>
<textarea rows="10" cols="50" wrap="virtual" name="comments"
onclick="document.contactform.comments.value='';" style="margin-bottom:5px;">Please type your query or comments here</textarea>
<input type="submit" value="Submit" />
</form>

and here is the seperate php script that is used:

<?php
if(isset($_POST['email'])) {

// EDIT THE 2 LINES BELOW AS REQUIRED
$email_to = "johnc@diggers.com.au";
$email_subject =  $_REQUEST['email_subject'];

function died($error) {
// your error code can go here
echo "We are very sorry, but there were error(s) found with the form you submitted. ";
echo "These errors appear below.<br /><br />";
echo $error."<br /><br />";
echo "Please go back and fix these errors.<br /><br />";
die();
}

// validation expected data exists
if(!isset($_POST['first_name']) ||
!isset($_POST['last_name']) ||
!isset($_POST['email']) ||
!isset($_POST['telephone']) ||
!isset($_POST['email_subject']) ||
!isset($_POST['comments'])) {
died('We are sorry, but there appears to be a problem with the form you submitted.');
}

$first_name = $_POST['first_name']; // required
$last_name = $_POST['last_name']; // required
$email_from = $_POST['email']; // required
$telephone = $_POST['telephone']; // not required
$telephone = $_POST['email_subject']; // required
$comments = $_POST['comments']; // required

$error_message = "";
$email_exp = "^[A-Z0-9._%-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$";
  if(!eregi($email_exp,$email_from)) {
   $error_message .= 'The Email Address you entered does not appear to be valid.<br />';
  }
$string_exp = "^[a-z .'-]+$";
  if(!eregi($string_exp,$first_name)) {
   $error_message .= 'The First Name you entered does not appear to be valid.<br />';
  }
  if(!eregi($string_exp,$last_name)) {
   $error_message .= 'The Last Name you entered does not appear to be valid.<br />';
  }
  if(strlen($comments) < 2) {
   $error_message .= 'The Comments you entered do not appear to be valid.<br />';
  }
  $string_exp = "^[0-9 .-]+$";
  if(!eregi($string_exp,$telephone)) {
   $error_message .= 'The Telephone Number you entered does not appear to be valid.<br />';
  }
  if(strlen($error_message) > 0) {
   died($error_message);
  }
$email_message = "Form details below.\n\n";

function clean_string($string) {
  $bad = array("content-type","bcc:","to:","cc:","href");
  return str_replace($bad,"",$string);
}

$email_message .= "First Name: ".clean_string($first_name)."\n";
$email_message .= "Last Name: ".clean_string($last_name)."\n";
$email_message .= "Email: ".clean_string($email_from)."\n";
$email_message .= "Telephone: ".clean_string($telephone)."\n";
$email_message .= "Comments: ".clean_string($comments)."\n";

// create email headers
$headers = 'From: '.$email_from."\r\n".
'Reply-To: '.$email_from."\r\n" .
'X-Mailer: PHP/' . phpversion();
@mail($email_to, $email_subject, $email_message, $headers);
?>



Thank you for contacting us. We will be in touch within 72 hours of the next working day.

<?
}
?>

Any help on how to get this going would be greatly appreciated, thanks

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Hello,

I'm trying to take the value from an HTML form and insert it into a database on a button click. It inserts a null value into the database. The script is called submitColumnDetails.php.

This is where I create the text field that I want to take the information from. This is in a separate file.
Code: [Select]
echo <<<END
<form action = "submitColumnDetails.php" method = "POST">
<input type = "text" name = "columnField"/>
</form>
END;

This is the submitColumnDetails.php file

Code: [Select]

<?php
//Submit Column Data
//-----------------------------------------------------//
//Connect to localhost server
$connector = mysql_connect("localhost", "root", "root");
if(!$connector){ //If user can't connect to database
die('Could not connect: ' . mysql_error()); //Throw an error
}
//-----------------------------------------------------//

mysql_select_db("colin_db", $connector);

$newValue = $_POST["columnField"]; //Data from column field. THIS IS WHAT RETURNS NULL
$newColumnQuery = "INSERT INTO `colin_db`.`allColumnFields` (`DATA`) VALUES ('$newValue')";
mysql_query($newColumnQuery); //Query to add form to main table

$newColumnIntoMainTableQuery = "ALTER TABLE colin_table ADD ('$newValue' varchar(50))";
mysql_query($newColumnIntoMainTableQuery); //Query to add column to main table

mysql_close($connector); //Close database connection
echo "<script type = 'text/javascript'> window.location = 'index.php'</script>";
//Go back to original page
?>

Even when I print out the $newValue, it does not print anything. What am I doing incorrectly?

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Form Validation?

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Okay with some help I was able to create a working guestbook!

How ever I need a bit of help with validation.

I would like to have it so that when someone doesn't fill out a required field a message is displayed next to the improperly filled out field. How would I go about adding this to my form or process code?

So for example:

if someone doesn't fill out the "name" field and clicks "sign" it will not submit but instead will display a message such as "Please fill out your name" next to the form field.

Also will I am here I wanted to ask. How can I make it so that when a non-required field is left empty and posted it will fill that section out with default text?

So for example:

if someone decides they do not wish to fill out the "Favorite part of my site" or "Favorite Pat Song" field than submits the form than it will fill that section with a default message

like this:

Posted by: someone (someone@domain.com)
2011/04/09
Favorite Pat Song: --
Favorite Part of the Site: --
comments here

And I promise this is my very last question. I would like for email to be required but would like to allow the user to decide whether it is kept private or not. How do I make it so that when someone doesn't type their email in it does like what I stated above, it will show a message next to the field telling them to fill out a valid email but also if they select to keep their email private it will than post a default value in place of where the email would have been.

for example:

if the email field is left empty or is an invalid email it will display a message such as "Please fill out a valid email address" next to the form field.

and than if they do so but also check the "private" box it will post their message in the guestbook with a default value in place of the email like this:

Posted by: someone (Private)
2011/04/09
Favorite Pat Song: --
Favorite Part of the Site: --
comments here

so that was a lot

here's my guestbook code:

Code: [Select]
<?php
<span style='color:#ff0000'><b>*</b></span><span> = required field</span><br /><br />

<form name='guestbook' action='process.php' method='post'>
<table width='550' border='0' cellspacing='2' cellpadding='0'>
<tr valign='top'>
<td width='550px' class='what'><span style='color:#ff0000'><b>*</b></span> Your Name:</td>
<td width='550px'><input name='name' type='text' id='name' size='32' /></td>
</tr>
<tr valign='top'>
<td width='550px' class='what'><span style='color:#ff0000'><b>*</b></span> Email Address:</td>
<td width='550px'><input name='email' type='text' id='email' size='32' /><input type='checkbox' name='private' value='Private' />Private</td>
</tr>
<tr valign='top'>
<td width='550px' class='what'>Your Favorite Pat Song?:</td>
<td width='550px'><input name='song' type='text' id='song' size='32' /></td>
</tr>
<tr valign='top'>
<td width='550px' class='what'>Your Favorite Part of my Site?:</td>
<td width='550px'><input name='part' type='text' id='part' size='32' /></td>
</tr>
<tr valign='top'>
<td width='550px' class='what'><span style='color:#ff0000'><b>*</b></span> Comment:</td>
<td width='550px'><textarea name='comments' cols='28' rows='6' id='comments' class='bodytext'></textarea></td>
</tr>
<tr>
<td class='bodytext'> </td>
<td align='left' valign='top'><input name='submit' type='submit' class='btn' value='Sign' /></td>
</tr>
</table>
</form>";

}else{

$connect = mysql_connect("127.0.0.1","patben_admin","pepsi_1990") or die('Error connecting');
$db = mysql_select_db("patben_db")  or die('Error selecting db');

$query = mysql_query("SELECT * FROM guestbook order by id desc");
$num_rows = mysql_num_rows($query);

if($num_rows > 0) {

//display entries
while($row = mysql_fetch_array($query)){

echo '
<table>
<tr>
    <td>
    <b>Posted by:</b> '.$row['name'].' ('.$row['email'].')<br />
    <b>'.$row['date'].'</b><br />
    <b>Favorite Pat Song:</b> '.$row['song'].'<br />
    <b>Favorite Part of the Site:</b> '.$row['part'].'

    </td>
</tr>
<tr>
    <td>
    '.nl2br($row['comments']).'
<hr />
    </td>
</tr>
</table>';
}

}else{

echo "No Entries... <a href='guestbook.php?page=sign'>Be the first!</a>";

}

}
?>

and here's the code that processes the form (separate file):

Code: [Select]
<?php

if($_POST['submit']) {

$connect = mysql_connect('127.0.0.1','patben_admin','pepsi_1990') or die('Error connecting');
$db = mysql_select_db('patben_db')  or die('Error selecting db');

$date = date("Y-m-d");
$name = strip_tags($_POST['name']);
$email = strip_tags($_POST['email']);
$song = strip_tags($_POST['song']);
$part = strip_tags($_POST['part']);
$comments = nl2br($_POST['comments']);

$query = mysql_query("insert into guestbook values('','$date','$name','$email','$song','$part','$comments')");

header("location: guestbook.php");

}else{

header("location: guestbook.php");

}

?>
I have not added a section in my database for the check box so I am also unsure how to do that (if I need to). Any help would be greatly appreciated!

Thank you

Validation Form

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Hi

I am currently writing code to validate a form using PHP. What i wanted was to validate all inputs and then post the data to a external mysql server.

However, i want a function placed on the submit/send button of the form, in which the function checks to see if there are no errors and then forwards the user to another page where the data is inserted into the sql database.

Here is what i have so far:

add_test.php

Code: [Select]
<?php
include("validation.php");
?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>test</title>
<link rel="stylesheet" href="test.css" type="text/css" media="screen" />
</head>
<body>

<div id="container">

<h1>Add a Product</h1>

<?php if(isset($_POST['send']) AND (!validateModel($_POST['model']) || !validatePrice($_POST['price']) || !validateProduct($_POST['product']) || !validateImage($_FILES['photo']) || !validateDescription($_POST['description']) ) ):?>
<div id="error">
<ol>
<center><p><b>Oops, Please fix these errors:</b></p></center><br />
<?php if(!validateModel($_POST['model'])):?>
<li><strong>Invalid Model:</strong> Model Number must be more than 3 letters!</li>
<?php endif?>
<?php if(!validatePrice($_POST['price'])):?>
<li><strong>Invalid Price:</strong> Price must be in integers!</li>
<?php endif?>
<?php if(!validateProduct($_POST['product'])):?>
<li><strong>Invalid Product:</strong> You didn't select a product!</li>
<?php endif?>
<?php if(!validateImage($_FILES['photo'])):?>
<li><strong>Invalid Image:</strong> You didn't select an image! - (ONLY: GIF/JPEG/JPG/PNG)</li>
<?php endif?>
<?php if(!validateDescription($_POST['description'])):?>
<li><strong>Invalid Description:</strong> Description must have at least 10 characters in length!</li>
<?php endif?>
</ol>
</div>

<?elseif(isset($_POST['send'])):?>

<div id="error" class="valid">

<ul>
<li><strong>Congratulations!</strong> All fields are OK ;)</li>
</ul>

</div>

<?endif?>

<form method="post" id="customForm" action="" enctype="multipart/form-data">
<div>
<label for="model">Model Number</label>
<input id="model" name="model" type="text" />
<span id="modelInfo">Please enter your Product Model Number!</span>
</div>

<div>
<label for="product">Product</label>

<select class="product" name="product">
<option value="please_select">Please select an option below</option>
<option value="1">19" LCD TV</option>
<option value="2">22" LCD TV</option>
<option value="3">26" LCD TV</option>
<option value="4">32" LCD TV</option>
<option value="5">37" LCD TV</option>
<option value="6">42" LCD TV</option>
<option value="7">37" Plasma TV</option>
<option value="8">42" Plasma TV</option>
<option value="9">46" Plasma TV</option>
<option value="10">50" Plasma TV</option>
<option value="11">54" Plasma TV</option>
<option value="12">58" Plasma TV</option>
<option value="13">Wall Bracket</option>
<option value="14">Home Cinema System</option>
<option value="15">Bluray Home Cinema System</option>
<option value="16">DVD Recorder</option>
<option value="17">DVD Player</option>
<option value="18">DVD Portable</option>

<option value="">Bluray Recorder</option>
<option value="">Bluray Player</option>
<option value="">Bluray Portable</option>
<option value="">Projector</option>
<option value="">37" LCD TV</option>
<option value="">42" LCD TV</option>
<option value="">Personal Video Recorder (PVR)</option>
<option value="">3D Technology</option>
<option value="">Upright Cleaner</option>
<option value="">Cylinder Cleaner</option>
<option value="">DECT Phone</option>
<option value="">DECT Answer Phone</option>
<option value="">Washing Machines</option>
<option value="">Tumble Dryers</option>
<option value="">Dishwashers</option>
<option value="">Fridge-Freezers</option>
<option value="">Freezers</option>
<option value="">Refridgerators</option>

<option value="">Microwave (Solo)</option>
<option value="">Microwave (Grill)</option>
<option value="">Microwave Combination</option>
<option value="">Kettles</option>
<option value="">Toasters</option>
<option value="">Irons</option>
<option value="">Breadmakers</option>
<option value="">Microsystems</option>
<option value="">Minisystems</option>
<option value="">CD, Radio and Cassette Players</option>
<option value="">Pure Radios</option>
<option value="">Dimplex Fires</option>
<option value="">Convector Heaters</option>
<option value="">Fan Heaters</option>
<option value="">Mens Shavers/Grooming</option>
<option value="">Ladies Shavers/Beauty</option>
<option value="">Straighteners</option>
<option value="">Epilators</option>

<option value="">Stylish Cameras</option>
<option value="">Super Zoom Cameras</option>
<option value="">SD Camcorders</option>
<option value="">HD Camcorders</option>
<option value="">HDD Camcorders</option>
<option value="">Bluray Discs</option>
<option value="">DVD Discs</option>
<option value="">Leads</option>
<option value="">Mini DV Tapes</option>
<option value="">SD/SDHC/SDXC Cards</option>
</select>

<span id="productInfo">Please choose a Product Title!</span>
</div>

<div>
<label for="price">Price</label>
<input id="price" name="price" type="text" />
<span id="priceInfo">Please enter a Price!</span>
</div>

<div>
<label for="photo">Image</label>
<input style="font-size:13px;" class="file" name="photo" type="file" />
<span id="imageInfo">Please choose an Image!</span>
</div>

<div>
<label for="message">Description</label>
<textarea id="description" name="description" cols="" rows=""></textarea>
</div>

<div>
<input id="send" name="send" type="submit" value="Send" />
</div>

</form>
</div>
</body>
</html>

Here is my validation php document

validation.php

<?php
function validateModel($model){
//if it's NOT valid
if(strlen($model) < 4)
return false;
//if it's valid
else
return true;
}

function validatePrice($price){
//if it's NOT valid
if(is_numeric($price) == '')
return false;
//if it's valid
else
return true;
}

function validateProduct($product){
//if it's NOT valid
if(($product)=='please_select')
return false;
//if it's valid
else
return true;
}

function validateImage($photo){
//if it's valid
if ((($_FILES["photo"]["type"] == "image/gif")
|| ($_FILES["photo"]["type"] == "image/jpeg")
|| ($_FILES["photo"]["type"] == "image/pjpeg"))
&& ($_FILES["photo"]["size"] < 2000000))
return true;

else
return false;
}

function validateDescription($description){
//if it's NOT valid
if(strlen($description) < 10)
return false;
//if it's valid
else
return true;
}

?>

any suggestions on how to write the code for the send button? Im abit stuck and being a newbie dont help lol.

Php Validation Form

Similar Tutorials

Hi all,

Im trying to add validation to a form to allow PHP to check before its sends the values to another page for them to be uploaded to a database.

The problem i have is that i have taken a, i thought simple PHP validating script off the net and i cant seem to get it to work, its just giving me a blank page. I dont know if the script is outdated, i dont think it is.

The script is he

Code: [Select]
<?php
include("validation.php");
?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Test Area</title>
<link rel="stylesheet" href="test.css" type="text/css" media="screen" />
</head>
<body>

<div id="container">

<h1>Add a Product</h1>

<?if(isset($_POST['send'])&amp;amp;amp;amp;amp;amp;amp;amp;&amp;amp;amp;amp;amp;amp;amp;amp;(!validateModel($_POST['model']) || !validatePrice($_POST['price']) || !validateDescription($_POST['description']) ) ):?>
<div id="error">
<ul>
<?if(!validateModel($_POST['model'])):?>
<li><strong>Invalid Name:</strong> We want names with more than 3 letters!</li>
<?endif?>
<?if(!validatePrice($_POST['price'])):?>
<li><strong>Invalid E-mail:</strong> Type a Valid Price!</li>
<?endif?>
<?if(!validateDescription($_POST['description'])):?>
<li><strong>Invalid message:</strong> Type a message with at least with 10 letters</li>
<?endif?>
</ul>
</div>
<?elseif(isset($_POST['send'])):?>
<div id="error" class="valid">
<ul>
<li><strong>Congratulations!</strong> All fields are OK ;)</li>
</ul>
</div>
<?endif?>

<form method="post" id="customForm" action="" enctype="multipart/form-data">
<div>
<label for="model">Model Number</label>
<input id="model" name="model" type="text" />
<span id="modelInfo">Please enter your Product Model Number!</span>
</div>

<div>
<label for="product">Product</label>

<select class="products" name="products">
<option value="0">Please select an option below</option>
<option value="1">19" LCD TV</option>
<option value="2">22" LCD TV</option>
<option value="3">26" LCD TV</option>
<option value="4">32" LCD TV</option>
<option value="5">37" LCD TV</option>
<option value="6">42" LCD TV</option>
<option value="7">37" Plasma TV</option>
<option value="8">42" Plasma TV</option>
<option value="9">46" Plasma TV</option>
<option value="10">50" Plasma TV</option>
<option value="11">54" Plasma TV</option>
<option value="12">58" Plasma TV</option>
<option value="13">Wall Bracket</option>
<option value="14">Home Cinema System</option>
<option value="15">Bluray Home Cinema System</option>
<option value="16">DVD Recorder</option>
<option value="17">DVD Player</option>
<option value="18">DVD Portable</option>

<option value="">Bluray Recorder</option>
<option value="">Bluray Player</option>
<option value="">Bluray Portable</option>
<option value="">Projector</option>
<option value="">37" LCD TV</option>
<option value="">42" LCD TV</option>
<option value="">Personal Video Recorder (PVR)</option>
<option value="">3D Technology</option>
<option value="">Upright Cleaner</option>
<option value="">Cylinder Cleaner</option>
<option value="">DECT Phone</option>
<option value="">DECT Answer Phone</option>
<option value="">Washing Machines</option>
<option value="">Tumble Dryers</option>
<option value="">Dishwashers</option>
<option value="">Fridge-Freezers</option>
<option value="">Freezers</option>
<option value="">Refridgerators</option>

<option value="">Microwave (Solo)</option>
<option value="">Microwave (Grill)</option>
<option value="">Microwave Combination</option>
<option value="">Kettles</option>
<option value="">Toasters</option>
<option value="">Irons</option>
<option value="">Breadmakers</option>
<option value="">Microsystems</option>
<option value="">Minisystems</option>
<option value="">CD, Radio and Cassette Players</option>
<option value="">Pure Radios</option>
<option value="">Dimplex Fires</option>
<option value="">Convector Heaters</option>
<option value="">Fan Heaters</option>
<option value="">Mens Shavers/Grooming</option>
<option value="">Ladies Shavers/Beauty</option>
<option value="">Straighteners</option>
<option value="">Epilators</option>

<option value="">Stylish Cameras</option>
<option value="">Super Zoom Cameras</option>
<option value="">SD Camcorders</option>
<option value="">HD Camcorders</option>
<option value="">HDD Camcorders</option>
<option value="">Bluray Discs</option>
<option value="">DVD Discs</option>
<option value="">Leads</option>
<option value="">Mini DV Tapes</option>
<option value="">SD/SDHC/SDXC Cards</option>
</select>

<span id="productInfo">Please choose a Product Title!</span>
</div>

<div>
<label for="price">Price</label>
<input id="price" name="price" type="text" />
<span id="priceInfo">Please enter a Price!</span>
</div>

<div>
<label for="photo">Image</label>
<input style="font-size:13px;" class="file" name="photo" type="file" />
<span id="photoInfo">Please choose an Image!</span>
</div>

<div>
<label for="message">Description</label>
<textarea id="description" name="description" cols="" rows=""></textarea>
</div>

<div>
<input id="send" name="send" type="submit" value="Send" />
</div>

</form>
</div>
</body>
</html>

This is the validation file:

<?php
function validateModel($model){
//if it's NOT valid
if(strlen($model) < 4)
return false;
//if it's valid
else
return true;
}

function validatePrice($price){
//if it's NOT valid
if(strlen($price) < 4)
return false;
//if it's valid
else
return true;
}

function validateDescription($description){
//if it's NOT valid
if(strlen($description) < 10)
return false;
//if it's valid
else
return true;
}
?>

I can't spot the problem, any suggestions?

Help With Php Form Validation

Similar Tutorials

Hello All,

I am a newbie to PHP and I'm working on a marathon sign up form for my final project and could really use the help. The trouble i'm having is sending and retrieving database from the database. Below is the code i am using. Can someone please review and tell me where I went wrong.

(This is the code that is sitting at the top of my document)

<?php
session_start();
require_once('inc/dbuser.php');
function test_input($data) {
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}
if (isset($_POST['submit_registration'])) {
$username = test_input($_POST['username']);
$password = test_input($_POST['password']);
$cpassword = test_input($_POST['cpassword']);
$fname = test_input($_POST['fname']);
$lname = test_input($_POST['lname']);
$email = test_input($_POST['email']);
$phone = test_input($_POST['phone']);
$address = test_input($_POST['address']);
$city = test_input($_POST['city']);
$state = test_input($_POST['state']);
$zip = test_input($_POST['zip']);
$distance = test_input($_POST['distance']);
if (!empty($username) || !empty($password) || !empty($fname) || !empty($lname)|| !empty($email) || !empty($phone)|| !empty($address)|| !empty($city)|| !empty($state)|| !empty($zip)|| !empty($distance)) {

}
else{

     $sql = "SELECT email From runners Where email = ? Limit 1";
     //Prepare statement
     $stmt = mysqli_stmt_init($conn);
     if(!mysqli_stmt_prepare($stmt, $sql)){
       header("location: ../signup?error=sqlerror");
      exit();
     }
     else{
     mysqli_stmt_bind_param($stmt,'s', $email);
     mysqli_stmt_execute($stmt);
     $stmt->bind_result($email);
     $stmt->store_result($stmt);
     $resultCheck = mysqli_stmt_num_rows($stmt);
     if ($resultsCheck > 0) {
      header ("Location: ../signup.php?error=usertaken&email=".$email);
      exit();
     }
     else {
         $sql = "INSERT Into runners (username, password, fname, lname, email, phone, address, city, state, zip, distance) values(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)";
         $stmt = mysqli_stmt_init($conn);
         if(!mysqli_stmt_prepare($stmt, $sql)) {
             header ("Location: ../signup.php?error=sqlerror");
      exit();
         }
         else{
            $hashedPwd = password_hash($password, PASSWORD_DEFAULT);
         mysqli_stmt_bind_param($stmt,"ssssssssssss", $username, $hashedPwd, $fname, $lname, $email, $phone, $address,$city, $state, $zip, $distance);
         mysqli_stmt_execute($stmt);
         header ("Location: ../signup.php?signup=success");
      exit();

}
}
     }
}
mysqli_stmt_close($stmt);
     mysqli_stmt_close($conn);
}

?>

(This is my form [submit_registration] )

<div class="contact">
                <?php
                if(isset($_GET['error'])) {
                    if($_GET['error']=="emptyfields"){
                       echo '<p>Fill in all fields!</p>';
                    }
                    elseif($_GET['error']== "invalidemail") {
                       echo '<p>Provide a valid email!</p>';
                    }
                    elseif($_GET['error']== "usertaken") {
                       echo '<p>Username is already taken!</p>';
                    }
                     elseif($_GET['error']== "passwordCheck") {
                       echo '<p>Your passwords do not match!</p>';
                     }
                      elseif($_GET['signup']== "success") {
                       echo '<p>Signup Successful!</p>';
                      }
                }
                ?>
            <form name="form1" action="signup.php" method="post">
                           <p><label>Create a username:<br></label>
                                   <input type="text" name="username" placeholder="username" autofocus required><br>
                                   <span class="err" id="usrErr"></span>
                               </p>
                               <p><label>Create a Password:<br></label>
                                   <input type="password" name="password" placeholder="password" autofocus required><br>
                                   <span class="err" id="pwdErr"></span>
                               </p>
                               <p><label>Confirm Password:<br></label>
                                   <input type="password" name="cpassword" placeholder="confirm password" autofocus required><br>
                                   <span class="err" id="cpwdErr"></span>
                               </p>
                               <p><label>First Name:<br></label>
                                   <input type="text" name="fname" placeholder="first name" autofocus required><br>
                                   <span class="err" id="fnErr"></span>
                               </p>
                               <p><label>Last Name:<br></label>
                                   <input type="text" name="lname" placeholder="last name" autofocus required><br>
                                   <span class="err" id="lnErr"></span>
                               </p>
                               <p><label>Email:<br></label>
                                   <input type="text" name="email" placeholder="you@youremail.com" required><br>
                                   <span class="err" id="emErr"></span>
                               </p>
                               <p><label>Phone: <br></label>
                                   <input type="tel" name="phone1" placeholder="XXX-XXX-XXXX" maxlength="13" required>
                                   <span class="err" id="phErr"></span>
                               </p>
                               <p><label>Address: <br></label>
                                   <input type="text" name="address" placeholder="415 W. 15th Street" required>
                                   <span class="err" id="addErr"></span>
                               </p>
                               <p><label>City: <br></label>
                                   <input type="text" name="city" placeholder="Chicago" required>
                                   <span class="err" id="cityErr"></span>
                               </p>
                               <p><label>State:<br></label>
                                   <input type="text" name="state" placeholder="IL" maxlength="2" required>
                                   <span class="err" id="stateErr"></span>
                               </p>
                               <p><label>Zip: <br></label>
                                   <input type="text" name="zip" placeholder="60621" maxlength="5" required>
                                   <span class="err" id="zipErr"></span>
                               </p>
                               <p>I am interested in:<br>
                               <span id="inErr" class="err"></span>
                               <select id="interest" class="adj">
                                   <option disabled>--5k--</option>
                                   <option> 1 Mile Run</option>
                                   <option> 5K Run</option>
                                   <option>10K run</option>
                               </select>
                               </p>
                                  <button type="submit" name="submit_registration"onclick="validForm()">Signup</button>


                               </p>
                           </form>

Php Form Validation

Similar Tutorials

Hi,

I currently have the following code in my form processing script:

Code: [Select]
$string_exp = "/^[A-Za-z .'-]+$/";
$error_missing = 'This field is required';

if(!preg_match($string_exp,$Name)) {
$errors[] = $error_missing;
}

if(!preg_match($string_exp_number,$Phone)) {
$errors[] = $error_missing;
}

if(is_array($errors))
{
echo 'Your message could not be sent due to the following errors:';
while (list($key,$value) = each($errors))
{

echo '<span class="error">'.$value.'</span><br />';
}
If the user enters no data into the required fields, the script prevents the form from being submitted and displays an error.

At present the errors for all the required fields are displayed in a long list at the top of my HTML form e.g.

This field is required
This field is required

What I want to do, is place the error message under each required field e.g. this http://coreyworrell.com/assets/uploads/images/ajax_contact_form.png instead of this http://cdn1.1stwebdesigner.com/wp-content/uploads/2010/02/validation-ajax-css-form.jpg

What do I need to do?

My form looks similar to this at the moment:

Code: [Select]
<div id="log">
<div id="log_res">
</div>
</div>
<form id="contact" name="contact" method="post" action="process.php">
<label>Name</label>
<input type="text" name="Name" id="Name" tabindex="1" />

<label>Email</label>
<input type="text" name="Phone" id="Phone" tabindex="2" />
</form>
The error messages are placed in the <div> section at the top of the form (using ajax)

Validation Form

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I'm trying to get validation messages to display on the same page as my login form without any PHP within my login page, is that possible?

Form Validation

Similar Tutorials

Hi there,

I've got a HTML textarea with the name attribute of 'review' and I've posted this into a variable called $review.
I want to say if the characters are less than 30, please enter more words etc.

The problem is, I get the if statement's error even when there are more than 30 characters.

Can anyone figure out why I'm getting this?
Code: [Select]
if ($review < 30){
echo '<p class="red">Review is too short, please enter at least 15 words</p>';
}

Form Validation

Similar Tutorials

Hi. I'm new to PHP and have a problem with some form validation.

The code below is my contact form. It was working until I added a dropdown list and checkbox. For all the other fields I created an input variable using the 'name' attribute to reference the data entered into the input fields and the validation appeared to work and an email was sent to the appropriate email address.

For the checkbox field I have also created a 'name' attribute but don't know whether this is right way to confirm whether the box has been checked?

For the field with a dropdown selection I have used the option 'selected', but again, don't know whether this is right or not.

Now when I enter valid data into all the fields, select a value from the dropdown and check the checkbox, I get an error message stating that I need to fill in all the form fields. I am pretty sure it is to do with the way I have tried to pick up the data from dropdown list and the checkbox, but can't figure out what it is.

Any help would be much appreciated.

Thanks in advance.

<?php echo file_get_contents('header.php'); ?>

<?php
    // Message Vars
    $msg = '';
    $msgClass = '';

  // Check to see if the form has been submitted
  if(filter_has_var(INPUT_POST, 'submit')) {
    //Input Data Variables
    $firstname = htmlspecialchars($_POST['firstname']);
    $lastname = htmlspecialchars($_POST['lastname']);
    $phonenumber = htmlspecialchars($_POST['phonenumber']);
    $email = htmlspecialchars($_POST['email']);
    $selected = htmlspecialchars($_POST['selected']);
    $message = htmlspecialchars($_POST['message']);
    $checkbox = htmlspecialchars($_POST['checkbox']);


    //Check required fields
    if(!empty($firstname) && !empty($lastname) && !empty($phonenumber) && !empty($email) && !empty($selected) && !empty($message) && !empty($checkbox)) {
      // If passed, check email address
      if(filter_var($email, FILTER_VALIDATE_EMAIL) === false) { 
        //If failed, Email address is not valid
        $msg = 'Please use a valid email address';
        $msgClass = 'alert-danger';
      } else {
        //Recipient email address and information to be sent to them
        $toEmail = 'hello@example.co.uk';
        $subject = 'Contact Request from  Website';
        $body = '<h2>Contact Request</h2>
                <h4>Name</h4><p>'.$firstname. ''.$lastname.'</p>
                <h4>Phone Number</h4><p>'.$phonenumber.'</p>
                <h4>Email Address</h4><p>'.$email.'</p>
                <h4>Subject</h4><p>'.$selected.'</p>
        ';

        // Email Headers
        $headers = "MIME-VERSION: 1.0" ."\r\n";
        $headers .="Content-Type:text/html;charset=UTF-8" ."\r\n";

        // Additional Headers
        $headers .= "From: " .$firstname. " ".$lastname." <".$email.">" ."\r\n"; 

        if(mail($toEmail, $subject, $body, $headers)) {
          // Message Sent
          $msg = 'Your message has been sent';
          $msgClass = 'alert-success';
        } else {
          // Message failed
          $msg = 'Your message has NOT been sent';
          $msgClass = 'alert-danger';
        }
      }  
    } else {
      //Failed
      $msg = 'Please fill in all fields';
      $msgClass = 'alert-danger';
    }
  }


?>



      <div class="container clearfix content-container">
        <h1 class="section-title">Contact Us</h1>
        <p>If you have any questions about the services we provide or would like to chat about a new website project, please get in touch using any of the options below. We would love to hear from you!</p>

        <!--Contact Page Row-->
        <div class="row">
          <div class="col-lg-6 contact-details">
            <div class="row">
              <div class="col-lg-12">
                <img src="assets/img/contact-us.jpg" class="img-responsive d-block contact-image" alt="Contact Us Image">
              </div>
            </div>
            <div class="row">
              <div class="col-lg-12 contact-name">
                <span class="d-inline-block contact-inline-block"><i class="fas fa-user fa-2x">
                </i></span>
                <span class="d-inline-block"><p class="contact-details">sn0wman23</p></span>   
              </div>
            </div>
            <div class="row">
              <div class="col-lg-12 contact-phone">
                <span class="d-inline-block contact-inline-block"><a href="tel:+447740484798"><i class="fas fa-mobile-alt fa-2x"></i></a></span>
                <span class="d-inline-block"><a href="tel:+441234567890"><p class="contact-details">01234 567890</a></p></span>  
              </div>
            </div>
            <div class="row">
              <div class="col-lg-12 contact-email">
                <span class="d-inline-block contact-inline-block"><a href="mailto:hello@example.co.uk"><i class="fas fa-envelope-square fa-2x"></i></a></span>
                <span class="d-inline-block"><a href="mailto:hello@example.co.uk"><p class="contact-details">hello@example.co.uk</a></p></span>  
              </div>
            </div>
            <div class="row">
              <div class="col-lg-12 contact-fb">
                <span class="d-inline-block contact-inline-block"><a href="https://www.facebook.com/" target="_blank"><i class="fab fa-facebook-square fa-2x"></a></i></span>
                <span class="d-inline-block"><a href="https://www.facebook.com/example/" target="_blank"><p class="contact-details">@example</a></p></span> 
              </div>
            </div>
          </div>

          <!--Contact Form-->
          <div class="col-lg-6 contact-form d-block">
            <?php if($msg != ''): ?>
              <div class="alert <?php echo $msgClass; ?>"><?php echo $msg; ?></div>
            <?php endif;?>
            <form method="post" action="contact.php" role="form">
              <div class=" row form-group">
                <div class="col-lg-6">
                  <label for="firstnameid">First name:</label>
                  <input type="text" name="firstname" class="form-control mb-3" id="firstnameid">
                </div>
                <div class="col-lg-6">
                  <label for="lastnameid">Last name:</label>
                  <input type="text" name="lastname" class="form-control mb-3" id="lastnameid">
                </div>
              </div>
              <div class="row form-group">
                <div class="col-lg-6">
                  <label for="phonenumber">Phone number:</label>
                  <input type="tel" name="phonenumber" class="form-control mb-3" id="phonenumberid">
                </div>
                <div class="col-lg-6">
                  <label for="emailid">Email address:</label>
                  <input type="email" name="email" class="form-control mb-3" id="emailid">
                </div>
              </div>
              <div class="row form-group">
                <div class="col-lg-12">
                  <label for="subjectid">How can I help?:</label>
                  <select class="form-control mb-3" id="subjectid">
                    <option selected>Select one from this list</option>
                    <option value="1">Value 1</option>
                    <option value="2">Value 2</option>
                    <option value="3">Value 3</option>
                  </select>
                </div>
              </div>
              <div class="row form-group">
                <div class="col-lg-12">
                  <label for="messageid">Tell me a little bit mo </label>
                  <textarea name="message" class="form-control mb-3" id="messageid" rows="6"></textarea>
                </div>
              </div>
              <div class="row form-group">
                <div class="col-lg-12 form-check">
                  <input type="checkbox" name="checkbox" class="form-check-input" id="formcheckid">
                  <label for="formcheckid" class=form-check-label mb-3>By checking this tickbox you have confirmed that we can collect the information in this form for the purposes outlined in our <a href="privacy-policy.html">privacy policy.</a></label>
                </div>
              </div>
              <div class="row form-group">
                <div class="col-lg-12">
                  <button type="submit" name="submit" class="btn btn-primary mt-4">Send Message
                  </button>
                </div>
              </div>
            </form>
          </div>
          <!--Contact Form End-->
        </div>
        <!--Contact Page Row End-->
      </div>
      <!--Container end-->

<?php echo file_get_contents('footer.php'); ?>

Form Validation

Similar Tutorials

I want in my form to validate on the fly(when the user enters the user name) to validate if the user name exists or not. How am i supposed to check if the field name is the same or not with a name in the database.Should i use ajax or javascript? is there any simple example on how to do that.