Hola,
www.php.net/stripslashes :
Cita: An example use of stripslashes() is when the PHP directive magic_quotes_gpc is on (it's on by default), and you aren't inserting this data into a place (such as a database) that requires escaping. For example, if you're simply outputting data straight from an HTML form.
De todas formas, supongo que seras consciente del alto peligro que tiene enviar trozos de consultas por la URL donde todo el mundo la puede y la puede modificar.
Saludos.