I've created autosave via Ajax for my content management system. Having problem. Problem is, when i'm testing on my local server, the php side updates big piece of data easily but when i'm testing it on my webhost, I see that, if the updated content is a big data, then php doesn't update the table row on the first attempt, updates only after second attempt. Any suggestion? How to deal with that problem?

PHP Side

<?php
session_start();
require '../../core/includes/common.php';
$err=array();
$name=filter($_POST['name'],$db);
$id=$db->escape_string($_POST['id']);
$title=filter($_POST['title'], $db);
$parentcheck=$db->escape_string($_POST['parentcheck']);
if(isset ($_POST['parent'])) $parent=$db->escape_string($_POST['parent']);
else $parent=$parentcheck;  
$menu=$db->escape_string($_POST['menu']);
$content = html($_POST['content'], $db);
if (!isset($content)) die('error');

$result=$db->query("UPDATE pages AS p, menu AS m SET m.parent='$parent', m.name='$name', m.showinmenu='$menu', p.id='$id', p.title='$title', p.content='$content' WHERE m.id='$id' AND p.id=m.id") or die($db->error);


if ($result){   
echo "{";  
echo '"msg": "Success" ';
echo "}";  
}
else{ 
echo "{"; 
echo
'"err": "Error"';  
echo "}";  
}

?>

Originally asked by: DEVastator on Stack Overflow