script PHP para limpar inserts MySql

<?php if($_POST['evento'] != NULL) { $insere1 = $_POST['evento']; if(get_magic_quotes_gpc()) { echo 'get_magic_quotes_gpc() = '.get_magic_quotes_gpc(); $insere1 = stripslashes($insere1); } else { $insere1 = $insere1; } $query = sprintf("INSERT INTO $table (evento) VALUES ('%s')", mysql_real_escape_string($insere1)); $executaQuery = mysql_query($query); } ?>