<?php
function detectar($ascii) {
for ($i = 0; $i < strlen($ascii); $i++) {
$byte = ord($ascii{$i});
if($byte >=48 && $byte <=57 || $byte >=64 && $byte <=90 || $byte >=97 && $byte <=122) {
$hex .= chr($byte);
} else { print "Injeccion de Caracteres Detectado!\n"; exit; }
}
return $hex;
}
foreach($_GET as $var => $value) {
$value = detectar($value);
$_GET[$var] = $value;
}
foreach($_POST as $var => $value) {
$value = detectar($value);
$_GET[$var] = $value;
}
?>
solo pasan letras, arroba, números (ni espacios pasan).