In place of get_magic_quotes_gpc(), you can use htmlentities() method. It will help to prevent sql injection. e.g.

if (isset($_POST)) {
    $post = new httppost($_POST);
    echo htmlentities($post->value['field_name']);
}

If still you facing any issue. Let me know.

Hi,

The issue is that you are using PHP version 5.4 or above which has the function deprecated.

The 2 options you have. 1. First is to switch back to version 5.3 or less. 2. Second is to enclose the code under a condition which checks PHP version.

function quote_smart($value, $handle) { 
// Stripslashes 
if(phpversion() < "5.3")
{
if (get_magic_quotes_gpc()) { 
    $value = stripslashes($value); 
} 
}
// Quote if not integer 
if (!is_numeric($value)) { 
    $value = "'" . mysql_real_escape_string($value, $handle) . "'"; 
} 
return $value; 
}

Hope this helps.