contoh anti suntikan

<form method="POST">
  <input type="text" name="ngaran" placeholder="input teks di dieu">
  <input type="submit" name="simpen" value="kirimkeun">
</form>
<?php
    $as = new Anti_Suntikan;
    $ngaran = $as->jaga($_POST['ngaran']);
    if($_POST['simpen']){
        mysql_query("INSERT INTO tabel (data_ngaran) VALUES ($ngaran)");
    }
?>