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PHP - Validation Of Text Box
I'm unable to validate my text box which should contain only alphabets.
Here is the code Code: [Select] $string=preg_match("/^[a-zA-Z]+$/",$string); if($string) { echo "Valid"; } else { echo "Invalid"; } Even though the textbox contains only alphabets, it shows invalid. I dont know what i'm doing wrong here. However, if I leave a space inside the character class, it validates the string. I've checked the output of the string and there are no spaces what so ever, yet it shows invalid. Similar TutorialsI do want to validate a password input field to only allow numbers and letters without special character and spaces, and I also do want the same for the name input field. Since the old fashioned ways are deprecated. How would one approach to solve this issue the new way? Hi i have this edit form that allows user to mofy data but the problems on the text box is that it deletes the rest of the data after the space from the first word i tried to increase the size of the varChars on mysql but did no work why it happens how can i stop from happening?? this the form input <input type="text" name="name" id="name" class='text_box' value="<?php echo $_GET['name'];?>"/> Hello all , here is another problem of my project. I need to create a textarea , drop down list and submit button . At first , I can type whatever I want in the textarea , but for certain part I can just choose the word I want from drop down list and click submit , then the word will appear in the textarea as my next word . But I have no idea how to make this works , is there any simple example for this function ? Thanks for any help provided . I'd like to use a text editor like this one: http://tinymce.moxiecode.com/examples/full.php for my forums. But I am not sure exactly how I would prevent abuse and injects to messed up the page, rather than being contained in the designated area it is meant for. Could some one please help me, I know htmlspecailchars will not work, since some of the code needs to render as html Hi, I am writing several scripts and some are used to amend extra information to a text file. However, I added a hyperlink to the text file so that the user can go back to a page where they can add extra information. However, since I have done this every time I amend more text to the text file, the extra text appears below the hyperlink rather than above it, and I was wondering if there was a way around this. My amend code is as follows: Code: [Select] <html> <head> <title>Amend File</title> <link rel="stylesheet" type="text/css" a href="rcm/stylesheet.css"> </head> <?php if($_POST['append'] !=null) { $filename="C:/xampp/htdocs/rcm/denman2.txt"; $file=fopen($filename, "a"); $msg="<p>Updated Information: " .$_POST['append']. "</p><br>"; fputs ($file, $msg); fclose($file); } ?> <body> <h1>Do you want to append to a document?</h1> Enter Updated Information: <form action="amendfile2.php" method="post"> <input type="text" size="40" name="append"><br><br> <input type="submit" value="Add updated information to report"> </form> <form action="viewfile3.php" method="post"> <input type="submit" size="40" value="View Web Blog"> </form> <form action="loginform.php" method="post"> <input type="submit" value="Click here to go to the Log In Screen"> </form> </body></html> And my text file is as follows: Code: [Select] <h1>Accident Report</h1> <p>First Name: Andrew Last Name: Denman Age: 18 Complete Weeks Since Accident: 2<br> <a href="amendfile2.php">Amend to this file</a> Any help would be appreciated I’m trying to construct a button that simply writes an "aleph" character into a text area, see below.
My code does not work, can anyone tell me why ? How should I fix it ?
<!DOCTYPE html>
<html>
<meta charset="UTF-8">
<head>
<title>Example</title>
<script type="text/javascript">
//JavaScript code goes here
function insertAtEnd(text)
{
var theArea = document.getElementById("thisArea");
theArea.value += '' + text + '';;
}
</script>
</head>
<body>
<input type="button" id="aleph" name="aleph" value="Write an aleph"
onClick="javascript:insertAtEnd(\'<span>א</span>\');return(false)" />
<textarea id="thisArea"> </textarea>
</body>
</html>
I currently am working on a project where I code a "simple" telephone directory. There are three main tasks that it needs to do: 1. Directory.php(index page) has a "First Name" and "Last Name" field and a search button. When a name is searched from the directory.txt file, it displays First Name, Last Name, Address, City, State, Zip and phone in findinfo.php in designated text boxes...first name, last name, etc. 2. From the findinfo.php, like previously stated, the users information is listed in the appropriate text boxes. From there, there is an update button that will overwrite the user's information to directory.txt if that button is selected. It will then say the write was sucessful. 3. (completed this step) From the index page, there is a link that will take you to addnew.php where you enter First Name, Last Name, Address, City, State, Zip and phone in a web form and write it to directory.txt. This is the php code for the third step: <?php $newentryfile = fopen("directory.txt", "a+"); $firstname = $_POST['fname']; $lastname = $_POST['lname']; $address = $_POST['address']; $city = $_POST['city']; $state = $_POST['state']; $zip = $_POST['zip']; $phone = $_POST['phone']; $newentry = "$firstname $lastname\n\r $address\n\r $city, $state $zip\n\r $phone\n\r"; if (flock($newentryfile, LOCK_EX)) { if (fwrite($newentryfile, $newentry) > 0) echo "<p>" . stripslashes($firstname) . " " . stripslashes($lastname) . " has been added to the directory.</p>"; else echo "<p>Registration error!</p>"; flock($newentryfile, LOCK_UN); } else echo "<p>Cannot write to the file. Please try again later</p>"; fclose($newentryfile); if(empty($firstname) || empty($lastname) || empty($address) || empty($city) || empty ($state) || empty($zip) || empty($phone)) { echo "<p>Please go back and fill out all fields.</p>"; } ?> So to sum it all up, what would be my best approach? I am totally stumped and not sure which function to use. Should I work my way from step 1 to step 2? I see it as when I do the search for the name from directory.php, it takes me to findinfo.php, listing the users information in the text boxes. From there, if I needed to, having the user's information already listed I could hit the update button to overwrite the new information to directory.txt. Doing the update when then tell me that the write was successful. I have literally been scouring the internet for hours. What would be the best function to do this? I hope I was clear enough. Please help me out and thank you for your time. Hi there. How do I reflect the text content of the variable $a in this text form: <input type="text" name="artist"> Regards Morris Ok i have been working on this for a day+ now. here is my delema simple .ini text file. when a user makes a change (via html form) it makes the correct adjustments. problem is the newline issue 1. if i put a "\n" at the end (when using fputs) works great, except everytime they edit the file it keeps adding a new line (i.e. 10 edits there are now 10 blank lines!!!!) 2. if i leave off the "\n" it appends the next "fgets" to that lilne making a mess Code: [Select] ##-- Loop thruoght the ORIGINAL file while( ! feof($old)) { ##-- Get a line of text $aline = fgets($old); ##-- We only need to check for "=" if(strpos($aline,"=") > 0 ) { ##-- Write NEW data to tmp file fputs($tmp,$info[$i]." = ".$rslt[$i]."\n"); $i++; } ##-- No Match else { fputs($tmp,$aline."\n"); }//Checking for match }//while eof(old) what in the world is making this such a big deal. i dont remember having this issue in the past I tried opening with w+, and just w on the temp file a typical text line would be some fieldname = some value the scipt cycles through the file ignoring comments that are "#" ps the tmp file will overwrite the origianl once complete all i really want to know is WHY i cant get the newline to work, and what is the suggested fix EDIT: i just tried PHP_EOL and it still appends another newline Is it possible to have a text field on my site, and the text that is entered into it, be given to another site that I auto redirect the user to? If it is possible, could somebody give me the exact code (I'm not a programmer) I would need to use? Thanks for any help on this. ok, I am hoping the code is self explanatory... but if not, I'm creating a script which I will be using for something else. Basically it says if OS and browser show code under... I am looking for two things. 1. Is there a way to make it so that it can pull from a list and show that if HTTP_USER_AGENT comes back with a specific output, to say you are using X OS with Y browser? 2. The last bit, it is meant to say, if not any of the options show the info below. For some reason it's not doing that... can someone please tell me why? Thanks. Code: [Select] <?php //Operating Systems function xp(){return(eregi("Windows NT 5.1", $_SERVER['HTTP_USER_AGENT']));} function vista(){return(eregi("Windows NT 6.0", $_SERVER['HTTP_USER_AGENT']));} function win7(){return(eregi("Windows NT 6.1", $_SERVER['HTTP_USER_AGENT']));} function ubuntu(){return(eregi("Ubuntu/", $_SERVER['HTTP_USER_AGENT']));} //Web Browsers function chrome(){ return(eregi("Chrome/", $_SERVER['HTTP_USER_AGENT']));} function safari(){ return(eregi("Safari/", $_SERVER['HTTP_USER_AGENT']));} function firefox(){ return(eregi("Firefox/", $_SERVER['HTTP_USER_AGENT']));} function ie9(){ return(eregi("MSIE 9.0", $_SERVER['HTTP_USER_AGENT']));} function ie8(){ return(eregi("MSIE 8.0", $_SERVER['HTTP_USER_AGENT']));} // do something if XP and Chrome if(xp() && chrome()){echo 'You are using Windows XP with a Chrome web Browser';} // do something if XP and IE8 if(xp() && ie8()){echo 'You are using Windows XP with a Internet Explorer 8 web Browser';} // do something if Windows 7 and IE9 if(win7() && ie9()){echo 'You are using Windows 7 with a Internet Explorer 9 web Browser';} // do something if Windows Vista and IE9 if(vista() && ie9()){echo 'You are using Windows Vista with a Internet Explorer 9 web Browser';} // do something if Windows Vista and IE8 if(vista() && ie8()){echo 'You are using Windows Vista with a Internet Explorer 8 web Browser';} // do something if Ubuntu and Firefox if(ubuntu() && firefox()){echo 'You are using Ubuntu with a Firefox web Browser';} if(!ubuntu() || !xp() || !vista() || !win7() || !firefox() || !chrome() || !safari() || !ie9() || !ie8()){ echo'<strong>'; echo '<br />' . $_SERVER['HTTP_USER_AGENT'] . '<br /><br />Administrator someone in your work force is using an unsupported browser/OS combination, please email the information above to the developer of the NCMR software you are using. It will allow your browser/OS combination to be used correctly. Sorry for the inconvenience.</strong> <br /><br />Please copy and paste the text above and send it to your web administrator. It will explain everything he/she needs to do.';} ?> I have a form validation script which is written in php.. I want to add a validation (in registration form) that if the desired username contains either admin or owner keyword user will have to change his user name.. I made the following code but it does not work.. if(strpos($user_name, "admin")>=0 || strpos($user_name, "moderator")>=0 || strpos($user_name, "owner")>=0) { $error=$error."You are not allowed to take such Username<br>"; $bool=false; } In this code i am not able to enter any username.. And if i change >= to > then "admin123" username is going to be valid... I am troubled .... help me out guyzzz -pranshu.a.11@gmail.com Hello I have a textbox and a input button which will insert a mysql record, however i need to validate that textbox if its empty it shouldnt allow that button to insert any record but show a popup error. my script :
<script Language="JavaScript">
function Blank_TextField_Validator()
{
// Check the value of the element named text_name
// from the form named text_form
if (frmContact.id.value == "")
{
// If null display and alert box
alert("Please fill in the text field.");
// Place the cursor on the field for revision
frmContact.id.focus();
// return false to stop further processing
return (false);
}
// If text_name is not null continue processing
return (true);
}
</script>
Form :<form name="frmContact" id="frmContact" method="POST" action="index.php" onsubmit="return Blank_TextField_Validator()">however its not validating or showing any error. any help? Edited by sam20e, 11 November 2014 - 10:31 AM. im looking to validate an email address before it gets sent to mysql database currently my code checks if an email address is present and if an email address already exists how do you check to see if an address contains a . and a @ symbol? Code: [Select] if($email == '') { $errmsg_arr[] = 'Email is missing'; $errflag = true; } if($email != '') { $qry = "SELECT * FROM users WHERE email='$email'"; $result = mysql_query($qry); if($result) { if(mysql_num_rows($result) > 0) { $errmsg_arr[] = 'Email address already in use'; $errflag = true; } @mysql_free_result($result); } else { die("Query failed"); } } Thanks in advance Hi, Im making a form that contains 3 textboxes.. now i want my textboxes to contain only letters.. i used is_numeric for the validation but when i put' like.. "JUSHIRO1" my code will still accept it. can someone help me make a code that will validate my textbox to only accept letters. and one more.. when the user input in the textbox with a number a popup box will appear. Chaps, as a beginner developing his first web app in PHP, I have done fairly well.
However, I am struggling when it comes to validation.
I have written different ELSEIF statements as seen below which would actually carry out the validation itself.
// First name must be filled and in correct format.
if(empty($FirstName)) {
$errFirstName = '<p class="errText"> Please enter a value</p>';
echo $errFirstName;
}elseif(!preg_match('/^[a-z]+$/i',$FirstName)){
$errFirstName = '<p class="errText">Name may not start with a dash. Letters, spaces and dashes are accepted.</p>';
echo $errFirstName;
}
The problem is that I do not know how to make them "pop up" when the user makes a mistake.
I have a form in addteam.php seen below:
<form action="pushteam.php" method="post">
<p>Team name: <input type="text" name="TeamName" /></p>
<p>Description: </p>
<p><textarea name="Description" rows="4" cols="50">Add your description here.</textarea></p>
<p><input type="submit"/></p>
</form>
And a pushplayer.php script that pushes it to a mysql database:
// Get values from form
$TeamName=$_POST['TeamName'];
$Description=$_POST['Description'];
}
// Insert data into database
$sql="INSERT INTO Teams(TeamName, Description)VALUES('$TeamName', '$Description')";
$result=mysql_query($sql);
//If successful return to success.php else print error
if($result){
header( 'Location: success.php');
}
else {
header( 'Location: failure.php');
}
The scripts function properly. I would really appreciate if someone could guide me in the right direction here. Make the error pop up and make sure the data is not input. At the moment, if I add my ELSEIF statements, it will carry on and insert the data anyway and redirect me. Thanks
So Im in the weird place where my age validation is not working, any ideas: $dob = strtotime($_POST['dob']); //855993600 Feb 15th 1997 $age_req = strtotime('-13 year', $dob); //445680000 Feb 15th 1984 $time = time(); //1292007621 if ($time < $age_req){} I am really new to using php validation, I think I may be on to what I am looking for but not very sure. I am trying to validate my form fields just incase someone forgets (name, subject, message, and email). Here is what I have so far. I was looking at an example on how to validate a phone number. 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>Contact</title> <link href="style.css" rel="stylesheet" type="text/css" /> </head> <body> <?php $first_name=$_POST['name']; $email_address=$_POST['email']; $subject=$_POST['subject']; $message=$_POST['text']; if(isset($_GET['submit'])) { if(preg_match("/^\(([ $_GET['email']) != ) { echo "The email field was invalid<BR>"; } else if(isset($_GET['submit'])) { if(preg_match("/^\(([ $_GET['name']) != "") { echo "The name field was invalid<BR>"; } else if(isset($_GET['submit'])) { if(preg_match("/^\(([ $_GET['subject']) != "") { echo "The subject field was invalid<BR>"; } else { mail("myemailaddress@gmail.com","Subject: $subject", $message, "From: $first_name <$email_address>"); echo "Thank you for using our mail form.<br/>"; echo "Your email has been sent."; } ?> </body> </html> Hi there, I am working on getting my php form validation working. I just learned why mine wasn't working and it was because I had a header(location) in the middle of the html doc. The reason I had it there was because the code I am using is placed where I want the error to show. Here is the code I am using for this part. I only have one field being validated at the moment. Code: [Select] <? session_start(); if ($_POST['submit']) { $_SESSION['City'] = $_POST['City']; $errors = ""; if(!$_SESSION['City']){ $errors = $errors . "Please enter your city<br>"; } if ($errors != "") { echo "Please check the following errors:<br>"; echo $errors; } else { header("Location: nextpage.php"); } } ?> My question is: What way would you reorganize this (scrapy) validation to where I can redirect my user to a new page when there is no error value? The form page submits to itself with POST. Thanks for your help. |
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