Functions for preventing both SQL and XSS injection attacks

Functions for preventing both SQL and XSS injection attacks

<?php
function mysql_entities_fix_string($string)
{
    return htmlentities(mysql_fix_string($string));
}
function mysql_fix_string($string)
{
    if (get_magic_quotes_gpc()) $string = stripslashes($string);
    return mysql_real_escape_string($string);
}
?>