Issue with script look at the website - php

Question

I could not find this problem anywhere and nothing really related that I can see. I have a URL Shortening script that I purchased, this script works great on my first server, installed the database, FTP'd the files and was all set and shortening URLs.
But since then I moved it to a VPS server, I setup the server exactly same, with Centos 5.6. Installed the script, everything is fine. But the only thing that I find that does not work is the shortening process. I have no idea why it won't work. I have little knowledge of Ajax and JavaScript which I think the problem is with.
Here is ajax.php
<?php
require_once '../config.php';
function url_exist($url)
{
$c=curl_init();
curl_setopt($c,CURLOPT_URL,$url);
curl_setopt($c,CURLOPT_HEADER,1);
curl_setopt($c,CURLOPT_NOBODY,1);
curl_setopt($c,CURLOPT_RETURNTRANSFER,1);
if(!curl_exec($c)){
return false;
}else{
return true;
}
}
function shorteURLFromID ($integer)
{
$base = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$length = strlen($base);
$out = '';
while($integer > $length - 1)
{
$out = $base[fmod($integer, $length)] . $out;
$integer = floor( $integer / $length );
}
return $base[$integer] . $out;
}
if(isset($_POST['url']))
{
$l_type = (string) $db->escape(trim(strip_tags($_POST['type'])));
$url = trim(strip_tags($_POST['url']));
$url = str_replace(array("http://"), array(''), $url);
if(strlen($url) < 3) {
print '<style>.alert-300{width:325px;margin-left:182px;}</style>';
die("<div class='alert alert-error alert-300'>".translate('empty_url_error')."</div>");
}
if(stristr($url, $_SERVER['SERVER_NAME'])) {
print '<style>.alert-300{width:325px;margin-left:182px;}</style>';
die("<div class='alert alert-error alert-300'>".translate('same_site_error')."</div>");
}
if(url_exist($url))
{
//check if exists for this user
$rs = $db->get_row("SELECT string FROM links WHERE uID = '".$usersObject->ID()."' AND
destination = '".mysql_real_escape_string($url)."' LIMIT 1");
if(count($rs)) {
$string = $rs->string;
print "http://".$_SERVER['SERVER_NAME']."/".$string;
}else{
$rs = $db->query("INSERT INTO links (destination, added, ip, uID, type) VALUES
('".$db->escape($url)."', '".time()."', '".ip2long($_SERVER['REMOTE_ADDR'])."',
'".$usersObject->ID()."', '".$l_type."')");
if($rs) {
$string = shorteURLFromID($db->insert_id);
$rs = $db->query("UPDATE links SET string = '$string' WHERE linkID = '".mysql_insert_id()."'");
print "http://".$_SERVER['SERVER_NAME']."/".$string;
}else{
print '<style>.alert-300{width:325px;margin-left:182px;}</style>';
print "<div class='alert alert-error alert-300'>Could not create shortened link ".mysql_error()."</div>";
}
}
}else{
print '<style>.alert-300{width:325px;margin-left:182px;}</style>';
print "<div class='alert alert-error alert-300'>".translate('invalid_url_error')."</div>";
}
}else{
print '<style>.alert-300{width:325px;margin-left:182px;}</style>';
print '<div class="alert alert-error alert-300">'.translate('invalid_url_error').'</div>';
}
?>

Answer 1

The only thing that comes to mind without further info (or source of the script) is the version of PHP you're using. Is it different than that of the old server? If so, is it pre-5.2?

Answer 2

Try adding in this option:
curl_setopt($c, CURLOPT_SSL_VERIFYPEER, 0);
It looks like the default was changed with cURL 7.10 to true, so it is possible PHP 5.2.17 was using a version prior to 7.10.
Levi