Foro de elhacker.net

$exp = "/^(?![.,])(?:[\w!#$%&'*+/=?^_`{|}~\-]+(?:[.,][\w!#$%&'*+/=?^_`{|}~\-]+)*|(?>\".+\"))+(?![.,])@(?>\[(?:(?>2(?>5[0-5]|[0-4]?\d)|1?\d{1,2})\.){3}(?:(?>2(?>5[0-5]|[0-4]?\d)|1?\d{1,2}))\]|(?![.,])[\w!#$%&'*+/=?^_`{|}~\-]+(?:[.,][\w!#$%&'*+/=?^_`{|}~\-]+)*(?:\.[a-zA-Z]+)(?![.,]))$/";
if(!preg_match($exp, $value)){
       $array_err[2] = $key;
}

(?: -> Grupo 1:
  (?> -> Aca separamos, el maximo de cada grupo de una IP es 255
    2 -> Si empieza con 2...
    (?>
      5[0-5]  -> y sigue con 5, que pueda hasta 55
    |
      [0-4]?\d)  -> caso contrario, que sea de 0 a 49
  |
    1?  -> o puede ser que sea 100 o menor
    \d{1,2} -> numero...de no mas de 2 cifras
  )
  \.  -> un punto
){3}  -> se debe repetir 3 veces la captura del grupo
(?:  -> Aca se repite exactamente el mismo grupo, pero sin el punto final
  (?> -> Aca separamos, el maximo de cada grupo de una IP es 255
    2 -> Si empieza con 2...
    (?>
      5[0-5]  -> y sigue con 5, que pueda hasta 55
    |
      [0-4]?\d)  -> caso contrario, que sea de 0 a 49
  |
    1?  -> o puede ser que sea 100 o menor
    \d{1,2} -> numero...de no mas de 2 cifras
  )
)

$exp = "/^(?![.,])(?:[\w!#$%&'*+/=?^_`{|}~\-]+(?:[.,][\w!#$%&'*+/=?^_`{|}~\-]+)*|(?>\".+\"))+(?![.,])@(?>\[(?:(?>2(?>5[0-5]|[0-4]?\d)|1?\d{1,2})\.){3}(?:(?>2(?>5[0-5]|[0-4]?\d)|1?\d{1,2}))\]|(?![.,])[\w!#$%&'*+/=?^_`{|}~\-]+(?:[.,][\w!#$%&'*+/=?^_`{|}~\-]+)*(?:\.[a-zA-Z]+)(?![.,]))$/";
if(!preg_match($exp, $value)){
       $array_err[2] = $key;
}

$exp = "^(?![.,])(?:[\w!#$%&'*+/=?^_`{|}~\-]+(?:[.,][\w!#$%&'*+/=?^_`{|}~\-]+)*|(?>\".+\"))+(?![.,])@(?>\[(?:(?>2(?>5[0-5]|[0-4]?\d)|1?\d{1,2})\.){3}(?:(?>2(?>5[0-5]|[0-4]?\d)|1?\d{1,2}))\]|(?![.,])[\w!#$%&'*+/=?^_`{|}~\-]+(?:[.,][\w!#$%&'*+/=?^_`{|}~\-]+)*(?:\.[a-zA-Z]+)(?![.,]))$";
 

$exp = /^(?![.,])(?:[\w!#$%&'*+/=?^_`{|}~\-]+(?:[.,][\w!#$%&'*+/=?^_`{|}~\-]+)*|(?>\".+\"))+(?![.,])@(?>\[(?:(?>2(?>5[0-5]|[0-4]?\d)|1?\d{1,2})\.){3}(?:(?>2(?>5[0-5]|[0-4]?\d)|1?\d{1,2}))\]|(?![.,])[\w!#$%&'*+/=?^_`{|}~\-]+(?:[.,][\w!#$%&'*+/=?^_`{|}~\-]+)*(?:\.[a-zA-Z]+)(?![.,]))$/;
 

foreach($_POST as $key => $value){
	switch($key){
		case "Nombre":
			if(empty($value) or !preg_match("/^[a-zA-Z]+([\s][a-zA-Z]+)*$/", $value)){
				$array_err[0] = $key;
			}
		 	break;
		case "Apellidos":
			if(empty($value) or !preg_match("/^[a-zA-Z]+([\s][a-zA-Z]+)*$/", $value)){
				$array_err[1] = $key;
			}
		 	break;	
		case "Email":
			$exp = "^(?![.,])(?:[\w!#$%&'*+/=?^_`{|}~\-]+(?:[.,][\w!#$%&'*+/=?^_`{|}~\-]+)*|(?>\".+\"))+(?![.,])@(?>\[(?:(?>2(?>5[0-5]|[0-4]?\d)|1?\d{1,2})\.){3}(?:(?>2(?>5[0-5]|[0-4]?\d)|1?\d{1,2}))\]|(?![.,])[\w!#$%&'*+/=?^_`{|}~\-]+(?:[.,][\w!#$%&'*+/=?^_`{|}~\-]+)*(?:\.[a-zA-Z]+)(?![.,]))$";
			if(empty($value) or !preg_match($exp, $value)){
				$array_err[2] = $key;
			}
		 	break;
		case "Password":
		case "Password1":
			if((empty($_POST['Password']) and empty($_PAST['Password1'])) or ($_POST['Password'] != $_POST['Password1'])){
				$array_err[3] = $key;
			}
		 	break;	
		case "Dni":
			if(empty($value) or !preg_match("/^[0-9]{8}[A-Z]{1}$/", $value)){
				$array_err[4] = $key;
			}
			$numero = substr($value, 0, -1);
			$letras = array("T","R","W","A","G","M","Y","F","P","D","X","B","N","J","Z","S","Q","V","H","L","C","K","E");
			$dni = $numero . $letras[$numero%23];
			if($dni != $value){
				$array_err[4] = $key;
			}
		 	break;
		case "Pais":
			if(empty($value)){
				$array_err[5] = $key;
			}
		 	break;
		case "CodigoPostal":
			if(empty($value) or !preg_match("/^[0-9]{5}$/", $value)){
				$array_err[6] = $key;
			}
		 	break;	
		case "Direccion":
			if(empty($value) or !preg_match("/^[a-zA-Z]+([\s-][a-zA-Z]+)*$/", $value)){
				$array_err[7] = $key;
			}
		 	break;
		case "Ciudad":
			if(empty($value) or !preg_match("/^[a-zA-Z]+([\s-][a-zA-Z]+)*$/", $value)){
				$array_err[8] = $key;
			}
			break;
		case "Provincia":
			if(empty($value) or !preg_match("/^[a-zA-Z]+([\s-][a-zA-Z]+)*$/", $value)){
				$array_err[9] = $key;
			}
			break;
		case "Numero":
			if(empty($value) or !preg_match("/^[0-9]{1,4}$/", $value)){
				$array_err[10] = $key;
			}
		 	break;
		case "Planta":
			if(empty($value) or !preg_match("/^[0-9]{1,3}$/", $value)){
				$array_err[11] = $key;
			}
		 	break;
		case "Puerta":
			if(empty($value) or !preg_match("/^[\w]{1,4}$/", $value)){
				$array_err[12] = $key;
			}
		 	break;	
		case "Telefono":
			if(empty($value) or !preg_match("/^[0-9]{9}$/", $value)){
				$array_err[13] = $key;
			}
		 	break;
	}
}

if (preg_match('/^(?![.,])(?:[\w!#$%&\'*+\/=?^_`{|}~\-]+(?:[.,][\w!#$%&\'*+\/=?^_`{|}~\-]+)*|(?>\".+\"))+(?![.,])@(?>\[(?:(?>2(?>5[0-5]|[0-4]?\d)|1?\d{1,2})\.){3}(?:(?>2(?>5[0-5]|[0-4]?\d)|1?\d{1,2}))\]|(?![.,])[\w!#$%&\'*+\/=?^_`{|}~\-]+(?:[.,][\w!#$%&\'*+\/=?^_`{|}~\-]+)*(?:\.[a-zA-Z]+))$/', $value)) {
	# Successful match
} else {
	# Match attempt failed
}