twilitegxa Posted July 27, 2009 Share Posted July 27, 2009 Is there a way to keep the form data a user inputs into a field when they try to submit the form if they have errors? Here is my form example: <?php //Access Tracking Snippet //set up static variables $page_title = "register.php"; $user_agent = getenv("HTTP_USER_AGENT"); $date_accessed = date("Y-m-d"); //connect to server and select database $conn = mysql_connect("localhost", "root", "") or die(mysql_error()); $db = mysql_select_db("smrpg", $conn) or die(mysql_error()); //create and issue query $sql = "insert into access_tracker values ('', '$page_title', '$user_agent', '$date_accessed')"; mysql_query($sql,$conn); ?> <?php session_start(); // Connect to MySQL database: $access = mysql_connect('localhost','root','') or die ('Could not connect to database'); mysql_select_db('smrpg',$access) or die ('Could not select table'); # # $error = array(); if(isset($_POST['username'])) { $result = @mysql_query('SELECT username FROM `users` WHERE username = \''.mysql_real_escape_string($_POST['username']).'\''); if($row = @mysql_fetch_row($result)) { array_push($error, 'Your username is already being used. Please select another.'); } $len = strlen($_POST['username']); if($len < 3 || ($len > 20)) { array_push($error, 'Your username must be between 3 and 20 characters long.'); } $len = strlen($_POST['password']); if($len < 6 || ($len > 20)) { array_push($error, 'Your password must be between 6 and 20 characters long.'); } $len = strlen($_POST['name']); if($len > 100) { array_push($error, 'Sorry, your name can be no longer than 100 characters long.'); } if(!$_POST['name']) { array_push($error, 'You must provide your name'); } if(preg_match('/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$/i', $_POST['email']) == false) { array_push($error, 'Your e-mail address is incorrect'); } $len = strlen($_POST['email']); if($len > 255) { array_push($error, 'Sorry, your e-mail address is too long.'); } if(!$error) { @mysql_query('INSERT INTO `users` (username, password, name, email) VALUES (\''.mysql_real_escape_string($_POST['username']).'\', \''.mysql_real_escape_string(md5($_POST['password'])).'\', \''.mysql_real_escape_string($_POST['name']).'\', \''.mysql_real_escape_string($_POST['email']).'\')'); header('Location: user_created.php'); die('<a href="login.php">Login</a>'); } } ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <title>Sailor Moon RPG - Register A Username</title> <style type="text/css" media="screen"> /*<![CDATA[*/ @import url(global.css); /*]]>*/ </style> </head> <body> <!-- HEADER --> <h1 class="logo">Sailor Moon RPG</h1> <!-- /HEADER --> <?php include("topnav.php"); ?> <div id="main"> <?php include("includes/log.php"); ?> <?php include("mainnav.php"); ?> <h1>Registeration</h1> <table cellspacing="2" cellpadding="0" border="0"> <form method="post" action="register.php"> <?php if(isset($error) && $error) { ?> <tr> <td colspan="2"> <ul><?php foreach($error as $key => $value) echo '<li>'.$value.'</li>'; ?></ul> </td> </tr><?php } ?> <tr> <td>Username (3-20 chars):</td> <td><input type="text" name="username" /></td> </tr> <tr> <td>Password (6-20 chars):</td> <td><input type="password" name="password" /></td> </tr> <tr> <td>Your name:</td> <td><input type="text" name="name" /></td> </tr> <tr> <td>Email address:</td> <td><input type="text" name="email" /></td> </tr> <tr><td> </td></tr> <tr> <td> </td> <td><input type="submit" name="submit" value="Register!" /> <input type="submit" name="reset" value="Reset" /></td> </tr> </form> </table> </div> <?php include("bottomnav.php"); ?> <!-- FOOTER --> <div id="footer_wrapper"> <div id="footer"> <p>Sailor Moon and all characters are<br> trademarks of Naoko Takeuchi.</p> <p>Copyright © 2009 Liz Kula. All rights reserved.<br> A product of <a href="#" target="_blank">Web Designs By Liz</a> systems.</p> <div id="foot-nav"><!-- <ul> <li><a href="http://validator.w3.org/check?uri=http://webdesignsbyliz.com/digital/index.php" target="_blank"><img src="http://www.w3.org/Icons/valid-xhtml10-blue" alt="Valid XHTML 1.0 Transitional" height="31" width="88" /></a></li> <li><a href="http://jigsaw.w3.org/css-validator/validator?uri=http://webdesignsbyliz.com/digital/global.css" target="_blank"><img class="c2" src="http://jigsaw.w3.org/css-validator/images/vcss-blue" alt="Valid CSS!" /></a></li> </ul> --></div> </div> </div> <!-- /FOOTER --> </body> </html> I am using php to check the fields and produce errors if applicable, but it erases answers if there's an error. Is there a way to keep the input and display error messages with php instead of using Javascript? Quote Link to comment https://forums.phpfreaks.com/topic/167609-solved-php-form-validation-vs-javascript/ Share on other sites More sharing options...
KevinM1 Posted July 27, 2009 Share Posted July 27, 2009 Simply output the current post data in the right place: <input name="name" type="text" value="<?php if(isset($_POST['name'])) echo $_POST['name']; ?>" /> Quote Link to comment https://forums.phpfreaks.com/topic/167609-solved-php-form-validation-vs-javascript/#findComment-883835 Share on other sites More sharing options...
JonnoTheDev Posted July 27, 2009 Share Posted July 27, 2009 The value is contained in the POST array however I would clean the value (remove tags, etc) before placing back into the form field <td><input type="text" name="username" value="<?php print $_POST['username']; ?>" /></td> Quote Link to comment https://forums.phpfreaks.com/topic/167609-solved-php-form-validation-vs-javascript/#findComment-883836 Share on other sites More sharing options...
twilitegxa Posted July 28, 2009 Author Share Posted July 28, 2009 Thank you so much! That works perfectly! Quote Link to comment https://forums.phpfreaks.com/topic/167609-solved-php-form-validation-vs-javascript/#findComment-884382 Share on other sites More sharing options...
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