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POAJAX/JQuery Internal Server Error 500
 

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  1. POAJAX/JQuery Internal Server Error 500
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    <p>I have tried many solutions; I've debugged with FireBug and the error makes no sense. I have other pages I've made similar to this that work perfectly. The headers are being sent correctly, and the response that is displayed in FireBug is actually the correct response text; but it just doesn't display it on the page! Instead it returns "Internal Server Error 500" and I don't understand why.</p> <p>Here are my pages:</p> <p>First one is my class page that handles new page creation, just so you could see how the javascript scripts are referenced:</p> <pre><code>&lt;?php // Page Class class Page { public $title; function __construct ( $pageTitle = '', $scripts = "" ) { global $config; if ( strlen ( $pageTitle ) &gt; 0 ) { $this-&gt;title = $config['site']['name'] . ' &amp;raquo; ' . $pageTitle; $usePTitle = 1; } else { $this-&gt;title = $config['site']['name']; $usePTitle = 0; } echo '&lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"&gt;' . "\n", '&lt;html xmlns="http://www.w3.org/1999/xhtml" lang="en"&gt;' . "\n", '&lt;head&gt;' . "\n", ' &lt;title&gt;' . $this-&gt;title . '&lt;/title&gt;' . "\n", ' &lt;link rel="stylesheet" type="text/css" href="default.css" /&gt;' . "\n", ' &lt;script type="text/javascript" src="scripts/jquery.js"&gt;&lt;/script&gt;' . "\n", ' &lt;script type="text/javascript" src="scripts/functions.js"&gt;&lt;/script&gt;' . "\n"; if ( strlen ( $scripts ) &gt; 0 ) { echo ' &lt;script type="text/javascript"&gt;' . "\n", ' &lt;!--' . "\n"; include 'scripts/' . $scripts; echo ' //--&gt;' . "\n", ' &lt;/script&gt;' . "\n"; } echo '&lt;/head&gt;' . "\n", '&lt;body&gt;' . "\n", ' &lt;h2&gt;' . ( $usePTitle == 1 ? $pageTitle : $config['site']['name'] ) . '&lt;/h2&gt;' . "\n", '&lt;hr class="nv" /&gt;' . "\n", $this-&gt;head(); } function head ( ) { global $user, $sql, $config; if ( $user-&gt;auth == true ) { $pmc = $sql-&gt;result ( $sql-&gt;query ( 'SELECT COUNT(*) FROM `private_msgs` WHERE `pm_user` = ' . intval ( $user-&gt;info['id'] ) ) ); $headLinks = array ( 'Control Panel' =&gt; 'user.php', 'Private Messages (' . $pmc . ')' =&gt; 'messages.php', 'Logout' =&gt; 'logout.php', 'Contact Us' =&gt; 'contact.php' ); echo ' &lt;div id="userbar"&gt;' . "\n", $user-&gt;info('name') . ' (' . $user-&gt;info('level') . ') ' . "\n", ' &lt;ul id="userlinks"&gt;' . "\n"; foreach ( $headLinks as $t =&gt; $l ) { echo ' &lt;li&gt;&lt;a href="' . $l . '"&gt;' . $t . '&lt;/a&gt;&lt;/li&gt;' . "\n"; } echo ' &lt;/ul&gt;' . "\n", ' &lt;/div&gt;' . "\n", '&lt;hr class="nv" /&gt;' . "\n"; } else { $headLinks = array ( 'Register' =&gt; 'register.php', 'Login' =&gt; 'login.php', 'Contact Us' =&gt; 'contact.php' ); echo ' &lt;div id="userbar"&gt;' . "\n", ' Guest (' . $config['levels']['guest'] . ') ' . "\n", ' &lt;ul id="userlinks"&gt;' . "\n"; foreach ( $headLinks as $t =&gt; $l ) { echo ' &lt;li&gt;&lt;a href="' . $l . '"&gt;' . $t . '&lt;/a&gt;&lt;/li&gt;' . "\n"; } echo ' &lt;/ul&gt;' . "\n", ' &lt;/div&gt;' . "\n", '&lt;hr class="nv" /&gt;' . "\n"; } } function restrict ( $lvl ) { global $user; if ( $user-&gt;info('level') &lt; $lvl ) { echo ' &lt;h2&gt;Authorization Error&lt;/h2&gt;' . "\n", ' &lt;div class="text"&gt;' . "\n", ' You are not authorized to view this page.' . "\n", ' &lt;/div&gt;' . "\n", '&lt;hr class="nv" /&gt;' . "\n"; $page-&gt;genFooter(1); } } function genFooter ( $die = 0 ) { $year = date ( 'Y', time() ); $copy = ''; echo ' &lt;div id="footer"&gt;' . "\n", ' &amp;copy;' . $year . ' ' . $copy . "\n", ' &lt;/div&gt;' . "\n", '&lt;/body&gt;' . "\n", '&lt;/html&gt;'; if ( $die == 1 ) die(); } } ?&gt; </code></pre> <p>The next page is my actual login.php page that the logins are supposed to be run with:</p> <pre><code>&lt;?php require 'inc.common.php'; $page = new Page ( 'Login', 'login.js' ); ?&gt; &lt;div id="content"&gt; &lt;div id="result" class="result"&gt;&lt;/div&gt; &lt;h2&gt;Login&lt;/h2&gt; &lt;div class="text"&gt; &lt;fieldset&gt; &lt;fieldset&gt; &lt;legend&gt;Username&lt;/legend&gt; &lt;input type="text" id="un" value="" size="20" /&gt; &lt;span id="un_error" class="error"&gt;*&lt;/span&gt; &lt;/fieldset&gt; &lt;fieldset&gt; &lt;legend&gt;Password&lt;/legend&gt; &lt;input type="password" id="pw" value="" size="30" /&gt; &lt;span id="pw_error" class="error"&gt;*&lt;/span&gt; &lt;/fieldset&gt; &lt;input type="button" id="login" value="Login" /&gt; &lt;/fieldset&gt; &lt;/div&gt; &lt;/div&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>The next page is my "login.js" page that contains the JavaScript/AJAX code:</p> <pre><code>$(document).ready(function() { $("#login").click(function() { document.getElementById("result").innerHTML = 'Validating login...'; var user = $("#un").val(); var pass = $("#pw").val(); if ( user == "" ) { document.getElementById("un_error").style.visibility = 'visible'; $("#un").focus(); } if ( pass == "" ) { document.getElementById("pw_error").style.visibility = 'visible'; $("#pw").focus(); } $.ajax({ type: "POST", url: "http://stjohnspikapp.org/ajaxforums/login-parse.php", data: "un=" + user + "&amp;pw=" + pass + "&amp;session=" + Math.random(), success: function(msg) { document.getElementById("result").innerHTML = msg; } }); }); </code></pre> <p>});</p> <p>The final page is the login-parse.php page which is what receives the AJAX request and sends a response...</p> <pre><code>&lt;?php require 'inc.common.php'; $uname = $_POST['un']; $pword = $_POST['pw']; $errors = array(); if (! strlen($uname) ) $errors[] = 'Invalid username.'; if (! strlen($pword) ) $errors[] = 'Invalid password.'; $check = $sql-&gt;query('SELECT * FROM `users` WHERE `user_name` = \'' . $sql-&gt;escape($uname) . '\' AND `user_password` = \'' . $sql-&gt;escape(md5($pword)) . '\'' ); if ( $sql-&gt;num_rows ( $check ) == 0 ) $errors[] = 'Invalid username/password combination.'; /*if ( count ( $errors ) &gt; 0 ) { echo '&lt;blockquote&gt;The following errors occurred while processing your request:' . "\n", '&lt;ul&gt;' . "\n"; foreach ( $errors as $enum =&gt; $e ) { echo ' &lt;li&gt;&lt;strong&gt;(#' . ($enum+1) . '):&lt;/strong&gt; ' . $e . '&lt;/li&gt;' . "\n"; } echo '&lt;/ul&gt;' . "\n", '&lt;/blockquote&gt;' . "\n";*/ if ( count ( $errors ) &gt; 0 ) { echo '&lt;blockquote&gt;There was an error with your submission.&lt;/blockquote&gt;' . "\n"; } else { setcookie ( 'ajax_un', $uname, time()+60*3600 ); setcookie ( 'ajax_pw', $pword, time()+60*3600 ); echo '&lt;blockquote&gt;' . "\n", ' You have been logged in successfully!&lt;br /&gt;' . "\n", ' You may now return to the &lt;a href="index.php"&gt;board index&lt;/a&gt;.' . "\n", '&lt;/blockquote&gt;' . "\n"; } ?&gt; </code></pre>
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      1. VTUpMod
    1. COInternal Server Errors (error #500) are logged in the server error log. Check your log and post the most recent error, and somebody will be able to help you.
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      1. USpattyd
    2. CO@pattyd I could open a support ticket with my web host but I don't have access to the server error logs due to the hosting company.
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    3. COWhat company is it? I am sure I could help you out.
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      1. USpattyd
 

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