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PHP - Validate Huge Fields
I need to validate the POST fields below except a few hidden inputs like User_id & category: They are not huge but i would not like to write for each a line of code like if(empty($_popst['field'])) ...
How can simplify this by checking only if they are empty and display a message that lists all fields that were not filled? Code: [Select] array('user_id'=>$data['Id'], 'surname'=>$_POST['surname'], 'firstname'=>$_POST['firstname'], 'middlename'=>$_POST['middlename'], 'id_number'=>$_POST['id_number'], 'pin_number'=>$_POST['pin_number'], 'street'=>$_POST['street'], 'estate'=>$_POST['estate'], 'hse_number'=>$_POST['hse_number'], 'town'=>$_POST['town'], 'tele'=>$_POST['tele'], 'mobi'=>$_POST['mobi'], 'work_street'=>$_POST['work_street'], 'work_building'=>$_POST['work_building'], 'company'=>$_POST['company'], 'work_town'=>$_POST['work_town'], 'work_tele'=>$_POST['work_tele'], 'work_fax'=>$_POST['work_fax'], 'cont_surname'=>$_POST['cont_surname'], 'cont_firstname'=>$_POST['cont_firstname'], 'cont_middlename'=>$_POST['cont_middlename'], 'cont_street'=>$_POST['cont_street'], 'cont_building'=>$_POST['cont_building'], 'cont_company'=>$_POST['cont_company'], 'cont_home_tele'=>$_POST['cont_home_tele'], 'cont_office_tele'=>$_POST['cont_office_tele'], 'cont_mobi'=>$_POST['cont_mobi']); Similar TutorialsHello. So I already know an extremely elementary way to check to see if a form field is blank using PHP. For example: Code: [Select] if ($subject == "") The question I have is, is there a way to have php check every field in a form to make sure it has some sort of value? I want to create an 'if' statement which basically says, "If all form fields have something filled in, then do this" For example Code: [Select] if ($subject == "any value") & ($name == "any value") & ($comment == "any value") Not sure if that makes sense. Any help would be greatly appreciated!!! Hello, i need to validate 200 input fields if they are not empty, i have the following code where i'm stuck and i'm missing something any help is appreciated Code: [Select] if($_SERVER['REQUEST_METHOD'] == 'POST') { //print_r($_POST); foreach ($_POST as $value) { if (empty($value)){ echo 'empty'; } else { echo 'notempty'; } } } Hi I'm currently having a problem with my form. Users submit an empty field into the database and the next time another user tries to enter it just says username has been taken. I need some help on how to confirm that the username and email field isnt empty when inserted and that the email address is in the correct format.
<?php include "base.php"; ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>User Management System (Tom Cameron for NetTuts)</title>
<link rel="stylesheet" href="style.css" type="text/css" />
</head>
<body>
<div id="main">
<?php
$username = mysql_real_escape_string($_POST["username"]);
$email = mysql_real_escape_string($_POST["email"]);
$mxitid = mysql_real_escape_string($_SERVER["HTTP_X_MXIT_USERID_R"]);
if(!isset($mxitid))
{
$mxitid = "DEFAULT";
}
$checkusername = mysql_query("SELECT * FROM Users WHERE mxitid = '".$mxitid."'");
$checkemail = mysql_query("SELECT * FROM Users WHERE email = '".$email."'");
if(mysql_num_rows($checkusername) == 1)
{
echo "<h1>Error</h1>";
echo "<p>Sorry, that username is taken. Please go <a href=\"register.php\">back</a>and try again.</p>";
}
elseif(mysql_num_rows($checkemail) == 1)
{
echo "<h1>Error</h1>";
echo "<p>Sorry, that email is taken. Please go <a href=\"register.php\">back</a>and try again.</p>";
}
elseif ($_POST["register"])
{
$username = mysql_real_escape_string($_POST["username"]);
if(!isset($mxitid))
$mxitid = mysql_real_escape_string($_SERVER["HTTP_X_MXIT_USERID_R"]);
if(!isset($mxitid))
{
$mxitid = "DEFAULT";
}
$registerquery = mysql_query("INSERT INTO Users (Username,mxitid,email) VALUES('".$username."','".$mxitid."','".$email."')");
if($registerquery)
{
echo "<h1>Success</h1>";
echo "<p>Your account was successfully created. Please <a href=\"index9.php\">click here to start chatting</a>.</p>";
}
}
else
{
?>
<h1>Register</h1>
<p>Please enter your details below to register.</p>
<p>Keep it clean! or you might get banned!</p>
<form method="post" action="register.php" name="registerform" id="registerform">
<fieldset>
<label for="username">Username:<br>
Using emoticons in your name won't work!</label><input type="text" name="username" id="username" /><br />
<label for="email">Email:<br>(We need your real one to be able to contact you!)<br>
If you don't have one make use of your mxit email service.</label><input type="email" name="email" id="email" /><br />
<input type="hidden" name="mxitid" id="mxitid" value="<? $_SERVER['HTTP_X_MXIT_USERID_R']; ?>"/><br />
<input type="submit" name="register" id="register" value="Register" />
</fieldset>
</form>
<?php
}
?>
</div>
</body>
</html>
I tried using
function check_input($data, $problem='')
{
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
if ($problem && strlen($data) == 0)
{
die($problem);
}
return $data;
}
but it didnt seems to work
Hey guys,
Thank you in advance... here is my situation, I have a form with three (3) fields in it, the 'student name' is unlimited textfield with an "add more" button to it and I have two select fields ('number of shirts' and 'trophies') that depend on the number of entries for 'student name'...
I want to create the select fields based on this math, for as many 'student name' entries:
1- i want to have the select form for 'number of shirts' to be 0 up to that number... so if there are 6 'student name' entries, the select options will be 0,1,3,4,5,6,7
2- I want to have the select form for 'trophies' to be 5 'student name' entries to 1 'trophies', for example if there are 6 'student name' entries, the select options will be 0,1... if there are 13 entries, options will be 0,1,2... So if there are less than 5 'student name' entries, the select field will not show (hidden)
of course if there are no 'student name' entries, these two fields won't show up (hidden)
let me know if that make sense and ANY help or directions will be GREATLY APPRECIATED.
Thanks guys!
I have a like 100 of these in a drop down box and drop down box on html is really new to me Id like to put all the option values into one variable. but i dont know if the form works like that? cause I want to store the -1200 and not whats in the drop down box I feel like my approach with this is way off if someone could help guide me in a direction would appreciate it so I can say Code: [Select] <?php mysql_query("UPDATE users SET time_offset= '".mysql_real_escape_string($_POST['$________'])."' WHERE id = '".mysql_real_escape_string($_SESSION['user_id'])."'"); <select name="cars"> <option value="-1200">(GMT -1200) International Date Line West </option> <option value="-1100">(GMT -1100) Coordinated Universal Time -11 </option> <option value="-1100">(GMT -1100) Samoa </option> <option value="-1000">(GMT -1000) Hawaii </option> <option value="-0900">(GMT -0900) Alaska </option> ?> Hello! I have a small question... I used to upload all my member's images in same directory, but now i've decided to put 1000 images in each directory Code: [Select] <?php $ID = $get_member_id_from_mySQL; if($ID >=0 AND $ID <=1000 ){ $directory_name='from0to1000'; } else if($ID >=1001 AND $ID <=2000 ){ $directory_name='from1001to2000'; } else if($ID >=2001 AND $ID <=3000 ){ $directory_name='from2001to3000'; } else if($ID >=3001 AND $ID <=4000 ){ $directory_name='from3001to4000'; } if(is_dir($directory_name)){ imagejpeg( $tmp_img, "{$directory_name}{$image_name}" ); }else{ mkdir("/path/to/my/$directory_name", 7777); imagejpeg( $tmp_img, "{$directory_name}{$image_name}" ); } ?> Is there any simpler way to continue with the IF function? Because I can't do this until 1000000 ? Hi, I have this text file with a 123mb size then i ran my simple script to read it and render it via browser $fh = fopen('worldcitiespop.txt',r); while(!feof($fh)) { $content = fgets($fh); echo $content."<br />"; } fclose($fh); I was expecting the 'whole' output via browser but then it didn't show "all" because when I opened the text file via a wordpad, it's really huge.. can you tell me what's wrong with my script ?...( btw, there's no max execution time error at all ) Hi Guys, I need a function which makes huge numbers normally readable... For example 1000000 must become 1.000.000 The same with smaller or lager numbers... Does someone know a simple solution ? Cheers Hi, I'm pretty new to this, so apologies if there's some simple solution/misunderstanding. It seems to me that when the user uploads a file, PHP pulls in the file into the temporary directory and then you can query it using the $_FILES array. Assuming I am correct so far, I have two questions: 1. Is there anyway to prevent the upload to the temporary folder based on file size? Seems to me a good way to overload a server to upload 10GB files, even if they are picked up as "errors" and deleted from the temp folder. 2. How long do files stay in the temporary folder? Does PHP delete them automatically, and if so, when? Thanks. I'm ok with PHP but probably not half as good as some of you guys on here. I am basically trying to find a way to grab a line from a huge and I mean huge text file.... its basically a list of keywords I want to call by line number but without preferably going through them all before I get to that line.....otherwise couldmcrash my server obviously. At the moment im using this Code: [Select] $lines = file('http://www.mysite.com/keywords.txt'); // Loop through our array, show HTML source as HTML source; and line numbers too. foreach ($lines as $line_num => $line) { echo "$line_num"; } This works but im sure theres gotta be a better way of doing to save on usuage because this is putting the whole file into the memory and if I can simply say to php give me line number 97, would umm RULE.... Hope you guys can come up with a solution as your much smarter than me ty Hi Everyone..
I am not sure if I should post this question here. I would like to fix this problem using PHP rather than HTML. I am new to PHP. This code is part of an old PHP gallery file. I am trying to validate my site but the site's links have some characters that makes the link throw errors in W3C Validator. So I tried to replace the characters with HTML characters for example ? are now replaced by ?
so my original link before using valid HTML characters looked like
www.awebsite.com/viewgallery.php?cname=Colorado-Fall&pcaption=Lost-In-The-artAnd now it looks like this ... www.awebsite.com/viewgallery.php?cname=Colorado-Fall&pcaption=Lost-In-The-artBut now W3C Validator shows an error like this Line 32, Column 240: an attribute value must be a literal unless it contains only name characters …n class='next'><a href=viewgallery.php?cname=Colorado-Journeys&pca…✉ You have used a character that is not considered a "name character" in an attribute value. Which characters are considered "name characters" varies between the different document types, but a good rule of thumb is that unless the value contains only lower or upper case letters in the range a-z you must put quotation marks around the value. In fact, unless you have extreme file size requirements it is a very very good idea to always put quote marks around your attribute values. It is never wrong to do so, and very often it is absolutely necessary. Hi, I am fairly new to php and I wanted to know whether you could validate a "input type = text ". I have made a class where i've made functions to validate test fields but i dont know how to call them with the html form. Any suggestions or tips .... Thanks in advance. Where should I validate the return value?
In the function should I validate the value before returning it.
Or once the value has been returned, should I check it?
Is it really necessary to validate the return value?
Thank you.
How do I make email, name and phone required fields? thanks in advance <?php $email = $_POST['email']; $name = trim($_POST['name']); $phone = trim($_POST['phone']); $time = trim($_POST['time']); $zipcode = trim($_POST['zipcode']); $date = trim($_POST['date']); $EmailTo = "myemail@somedomain.com"; $Subject = "form"; /// Add a subject $Body = ""; $Body .= "Full name:\n$name\n\n"; $Body .= "Primary phone:\n$phone\n\n"; $Body .= "time:\n$time\n\n"; $Body .= "Zip code:\n$zipcode\n\n"; $Body .= "date:\n$date\n\n"; if($Subject == NULL) {$Subject = "From $EmailFrom";} $success = mail($EmailTo, $Subject, $Body, "From: <$EmailFrom>"); if ($success){ header ('Location: confirm.html');} else{ echo "Error! Your e-mail was not sent!";} ?> Hi, I want to control a variable (decide whether to track click if coming from a specific site oppose to hitting the final site (destination) directly. For example: www.portal.com - this will be a management site that will redirect viewers to the the final destination based on variable info - for exmample $a=123 or $a= 567 - which would come in as www.portal.com?a=123 or www.portal.com?a=567 Note: 123 would redirect to www.abc.com?a=123 and/or 567 would redirect to www.xyz.com?a=567 with said variable(s). ------ My question is this: What is the best method to authenticate (both on) www.abc.com and/or www.xyz.com that the referred viewer came from www.portal.com? I know about the super globals (HTTP_REFERER) but want to know if there are other (more) secure method to manage this interaction between external domains /websites? Any insight on this appreciated - thanks! This is probably a simple one, but I'm not experienced with arrays. I have a form with looped dropdowns for items from a database. On submit it goes to a second page. Before I run any script I want to make sure the array created from the dropdowns contains anything greater than 0... I thought this would do it: if (isset($_POST['participantqty']) && ($_POST['participantqty']) > 0){ But it does nothing. I also tried: if (isset($_POST['participantqty[]']) && ($_POST['participantqty[]']) > 0){ I do not know whats going on. I have tried two different methods of validating and email and it keeps saying invalid email I have even tried to debug it by putting errors and nothing i have tried preg_match("^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$^", $e) and fliter_var($e, FLITER_VALIDATE_EMAIL); the email i am trying to debug is a valid one. its one I use daily. I have tried different emails and still no luck.... someone help me please! I am working on a script for a simple form with only 2 options that are dropdowns. I need to validate these two options that there is a selection made. I have gotten the first one to validate, but I cannot get the second one to validate. Can anyone steer me in the right direciton why only one is working? I get no errors in the script, so I assume I am just missing something. Code: [Select] <?php // options for drop-down menu $choices = array('-- Choose Your Item','Anniversary Jacket', 'Anniversary T-Shirt'); $sizes = array('-- Choose Your Size','L', 'XL'); if($_SERVER['REQUEST_METHOD'] == 'GET'){ // display form when GET showForm(array()); } else{ // process form if POST $errors = validateForm(); if(count($errors)) showForm($errors); // if errors show again else print 'Form submitted succesfully!'; // no errors } // function generating form function showForm($errors){ global $choices,$sizes; // set defaults $defaults = array(); foreach($choices as $key => $choice){ if(isset($_POST['item']) && ($_POST['item'] == $key)) $defaults['item'][$key] = 'selected'; else $defaults['item'][$choice] = ''; } foreach($sizes as $key => $size){ if(isset($_POST['size']) && ($_POST['size'] == $key)) $defaults['size'][$key] = 'selected'; else $defaults['size'][$size] = ''; } // print form print "<form action='{$_SERVER['SCRIPT_NAME']}' method='post'>"; print "<div>"; print "<select name='item'>"; foreach($choices as $key => $choice){ print "<option value='{$key}' {$defaults['item'][$key]}>{$choice}</option>"; } print "</select>"; showError('item', $errors); print "</div>"; print "<div>"; print "<select name='size'>"; foreach($sizes as $key => $size){ print "<option value='{$key}' {$defaults['size'][$key]}>{$size}</option>"; } print "</select>"; showError('size', $errors); print "</div>"; print "<input type='submit'/>"; print "</form>"; } // display error function showError($type, $errors){ if(isset($errors[$type])) print "<b>{$errors[$type]}</b>"; } // validate data function validateForm(){ global $choices,$sizes; // start validation and store errors $error = array(); // validate drop-down if(!(isset($_POST['item']) && (array_key_exists($_POST['item'], $choices)) && $_POST['item'] != 0)) $errors['item'] = 'Select Item'; return $errors; // validate drop-down if(!(isset($_POST['size']) && (array_key_exists($_POST['size'], $choices)) && $_POST['size'] != 0)) $errors['size'] = 'Select Size'; return $errors; } ?> Hello
I have a PHP page that sends text entered by a user to our database which we use to display news. This system supports various languages but occasionally we get issues with odd characters being entered...
For example, the premade glyph for ellipsis which is normally represented by 3 .'s broke our system today
How can I check that each character is valid and within range?
These are our character ranges
ExtendedLatin_c_iLowerAlphaChar = 0x00C0;
ExtendedLatin_c_iUpperAlphaChar = 0x01FF;
Arabic_c_iLowerChar = 0x600;
Arabic_c_iUpperChar = 0x6FF;
Arabic_c_iLowerAlphaChar = 0x621;
Arabic_c_iUpperAlphaChar = 0x64A;
Arabic_c_iLowerNumericChar = 0x660;
Arabic_c_iUpperNumericChar = 0x669;
So each character must fall within one of these ranges... but I have no idea how to get the hex value of a character in PHP
Thanks
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