PHP:
function sql_injection_check(){
$badwords = Array("--",";","'",'"',"INSERT", "DROP", "SELECT", "UPDATE", "DELETE", "drop", "insert", "select", "update", "delete", "WHERE", "where","exec","EXEC","procedure","PROCEDURE");
foreach($_REQUEST as $value) {
foreach($badwords as $word) {
if(substr_count($value, $word)) {
exit();
}
}
}
}
sql_injection_check();