Verification de formulaire en php? [Résolu]

[hugo69]

Bonjour,

J'ai construit un formulaire (à partir d'un objet) et je souhaiterais faire de multiples vérification sur la saisie de mon formulaire.

Est ce que les champs obligatoires sont remplis?
Est ce que l'adresse email est de bon format?
Est ce que la répétition du mot de passe est identique?
Est ce que la coche est cochée?

Je cherche à construire de préférence un objet pour cela.

Je pensais me tourner vers php, plutot que javascript.

Le but étant d'afficher la liste des erreurs qui font que le formulaire n'est pas correctement saisie.

"Le champs Nom n'est pas renseigné"
"Le champs Email n'est pas de bon format"
etc....

Je cherche la meilleure méthode pour cela.

Est ce que vous pourriez me mettre sur la voie? un bout de code? possible par un objet php?

MErci pour vos conseils.

[trotters213]

bè à part en regardant chaque valeur que contient $_POST (ou $_GET), je ne vois pas grand chose d'autre
Tu veux faire quoi exactement ?

[hugo69]

je cherche un systeme basé sur objet par exemple.

en voici un exemple.

La classe:

Code :

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class Validate_fields {
 
	var $fields = array();
	var $messages = array();
	var $check_4html = false;
	var $language;
 
	function Validate_fields() {
		$this->language = "uk";
		$this->create_msg();
	}
	function validation() {
		$status = 0; 
		foreach ($this->fields as $key => $val) {
			switch ($val['type']) {
				case "email":
				if (!$this->check_email($val['value'], $key, $val['required'])) {
					$status++;
				}
				break;
				case "number":
				if (!$this->check_num_val($val['value'], $key, $val['length'], $val['required'])) {
					$status++;
				}
				break;
				case "choix":
				if (!$this->check_num_val($val['value'], $key, $val['length'], $val['required'])) {
					$status++;
				}
				break;
				case "decimal":
				if (!$this->check_decimal($val['value'], $key, $val['decimals'], $val['required'])) {
					$status++;
				}
				break;
				case "date":
				if (!$this->check_date($val['value'], $key, $val['version'], $val['required'])) {
					$status++;
				}
				break;
				case "url":
				if (!$this->check_url($val['value'], $key, $val['required'])) {
					$status++;
				}
				break;
				case "text":
				if (!$this->check_text($val['value'], $key, $val['length'], $val['required'])) {
					$status++;
				}
				break;
				case "checkbox":
				case "radio":
				if (!$this->check_check_box($val['value'], $key, $val['element'])) {
					$status++;
				}
			} 
			if ($this->check_4html) {
				if (!$this->check_html_tags($val['value'], $key)) {
					$status++;
				}
			}
		}
		if ($status == 0) {
			return true;
		} else {
			$this->messages[] = $this->error_text(0);
			return false;
		}
	}
	function add_text_field($name, $val, $type = "text", $required = "y", $length = 0) {
		$this->fields[$name]['value'] = $val;
		$this->fields[$name]['type'] = $type;
		$this->fields[$name]['required'] = $required;
		$this->fields[$name]['length'] = $length;
	}
	function add_num_field($name, $val, $type = "number", $required = "y", $decimals = 0, $length = 0) {
		$this->fields[$name]['value'] = $val;
		$this->fields[$name]['type'] = $type;
		$this->fields[$name]['required'] = $required;
		$this->fields[$name]['decimals'] = $decimals;
		$this->fields[$name]['length'] = $length;
	}
	function add_link_field($name, $val, $type = "email", $required = "y") {
		$this->fields[$name]['value'] = $val;
		$this->fields[$name]['type'] = $type;
		$this->fields[$name]['required'] = $required;
	}
	function add_date_field($name, $val, $type = "date", $version = "us", $required = "y") {
		$this->fields[$name]['value'] = $val;
		$this->fields[$name]['type'] = $type;
		$this->fields[$name]['version'] = $version;
		$this->fields[$name]['required'] = $required;
	}
	function add_check_box($name, $element_name, $type = "checkbox", $required_value = "") {
		$this->fields[$name]['value'] = $required_value;
		$this->fields[$name]['type'] = $type;
		$this->fields[$name]['element'] = $element_name;
	}
	function check_url($url_val, $field, $req = "y") {
		if ($url_val == "") {
			if ($req == "y") {
				$this->messages[] = $this->error_text(1, $field);
				return false;
			} else {
				return true;
			}
		} else {
			$url_pattern = "http\:\/\/[[:alnum:]\-\.]+(\.[[:alpha:]]{2,4})+";
			$url_pattern .= "(\/[\w\-]+)*"; // folders like /val_1/45/
			$url_pattern .= "((\/[\w\-\.]+\.[[:alnum:]]{2,4})?"; // filename like index.html
			$url_pattern .= "|"; // end with filename or ?
			$url_pattern .= "\/?)"; // trailing slash or not
			$error_count = 0;
			if (strpos($url_val, "?")) {
				$url_parts = explode("?", $url_val);
				if (!preg_match("/^".$url_pattern."$/", $url_parts[0])) {
					$error_count++;
				}
				if (!preg_match("/^(&?[\w\-]+=\w*)+$/", $url_parts[1])) {
					$error_count++;
				}
			} else {
				if (!preg_match("/^".$url_pattern."$/", $url_val)) {
					$error_count++;
				}
			}
			if ($error_count > 0) {
				$this->messages[] = $this->error_text(14, $field);
					return false;
			} else {
				return true;
			}
		}
	}
	function check_num_val($num_val, $field, $num_len = 0, $req = "n") {
		if ($num_val == "") {
			if ($req == "y") {
				$this->messages[] = $this->error_text(1, $field);
				return false;
			} else {
				return true;
			}
		} else {
			$pattern = ($num_len == 0) ? "/^\-?[0-9]*$/" : "/^\-?[0-9]{0,".$num_len."}$/";
			if (preg_match($pattern, $num_val)) {
				return true;
			} else {
				$this->messages[] = $this->error_text(12, $field);
				return false;
			}
		}
	}
	function check_text($text_val, $field, $text_len = 0, $req = "y") {
		if (empty($text_val)) {
			if ($req == "y") {
				$this->messages[] = $this->error_text(1, $field);
				return false;
			} else {
				return true; // in case only the text length is validated
			}
		} else {
			if ($text_len > 0) {
				if (strlen($text_val) > $text_len) {
					$this->messages[] = $this->error_text(13, $field);
					return false;
				} else {
					return true;
				}
			} else {
				return true;
			}
		}
	}
	function check_check_box($req_value, $field, $element) {
		if (empty($_REQUEST[$element])) {
			$this->messages[] = $this->error_text(12, $field);
			return false;
		} else {
			if (!empty($req_value)) {
				if ($req_value != $_REQUEST[$element]) {
					$this->messages[] = $this->error_text(12, $field);
					return false;
				} else {
					return true;
				}
			} else {
				return true;
			}
		}
	}
	function check_decimal($dec_val, $field, $decimals = 2, $req = "n") {
		if ($dec_val == "") {
			if ($req == "y") {
				$this->messages[] = $this->error_text(1, $field);
				return false;
			} else {
				return true;
			}
		} else {
			$pattern = "/^[-]*[0-9][0-9]*\.[0-9]{".$decimals."}$/";
			if (preg_match($pattern, $dec_val)) {
				return true;
			} else {
				$this->messages[] = $this->error_text(12, $field);
				return false;
			}
		}
	}
	function check_date($date, $field, $version = "us", $req = "n") { 
		if ($date == "") {
			if ($req == "y") {
				$this->messages[] = $this->error_text(1, $field);
				return false;
			} else {
				return true;
			}
		} else {
			if ($version == "eu") {
				$pattern = "/^(0[1-9]|[1-2][0-9]|3[0-1])[-](0[1-9]|1[0-2])[-](19|20)[0-9]{2}$/";
			} else {
				$pattern = "/^(19|20)[0-9]{2}[-](0[1-9]|1[0-2])[-](0[1-9]|[1-2][0-9]|3[0-1])$/";
			}
			if (preg_match($pattern, $date)) {
				return true;
			} else {
				$this->messages[] = $this->error_text(10, $field);
				return false;
			}
		}
	}
	function check_email($mail_address, $field, $req = "y") {
		if ($mail_address == "") {
			if ($req == "y") {
				$this->messages[] = $this->error_text(1, $field);
				return false;
			} else {
				return true;
			}
		} else {
			if (preg_match("/^[0-9a-z]+(([\.\-_])[0-9a-z]+)*@[0-9a-z]+(([\.\-])[0-9a-z-]+)*\.[a-z]{2,4}$/i", $mail_address)) {
				return true;
			} else {
				$this->messages[] = $this->error_text(11, $field);
				return false;
			}
		}
	}
	function check_html_tags($value, $field) {
		if (preg_match("/<[a-z]+(\s[a-z]{2,}=['\"]?(.*)['\"]?)+(\s?\/)?>(<\/[a-z]>)?/i", $value)) {
			$this->messages[] = $this->error_text(15, $field);
			return false;
		} else {
			return true;
		}
	}
	function create_msg($break_elem = "<br />") {
		$the_msg = "";
		asort($this->messages); 
		reset($this->messages); 
		foreach ($this->messages as $value) {
			$the_msg .= $value.$break_elem."\n";
		}
		return $the_msg;
	}
	function error_text($num, $fieldname = "") {
		$fieldname = str_replace("_", " ", $fieldname);
		switch ($this->language) {
 
			case "fr":
			$msg[0] = "Por favor corrija los siguientes errores:";
			$msg[1] = "El campo <b>".$fieldname."</b> est&aacute; vac&iacute;o.";
			$msg[10] = "La fecha del campo <b>".$fieldname."</b> no es v&aacute;lida.";
			$msg[11] = "La direcci&oacute;n de correo electr&oacute;nico del campo <b>".$fieldname."</b> no es v&aacute;lida.";
			$msg[12] = "El valor en el campo <b>".$fieldname."</b> no es v&aacute;lido.";
			$msg[13] = "El texto en el campo <b>".$fieldname."</b> es demasiado largo.";
			$msg[14] = "La URL en el campo <b>".$fieldname."</b> no es v&aacute;lida.";
			$msg[15] = "Hay c&oacute;digo HTML en el campo <b>".$fieldname."</b>, esto no est&aacute; permitido.";
            break;
			default:
			$msg[0] = "Please correct the following error(s):";
			$msg[1] = "The field <b>".$fieldname."</b> is empty.";
			$msg[10] = "The date in field <b>".$fieldname."</b> is not valid.";
			$msg[11] = "The e-mail address in field <b>".$fieldname."</b> is not valid.";
			$msg[12] = "The value in field <b>".$fieldname."</b> is not valid.";
			$msg[13] = "The text in field <b>".$fieldname."</b> is too long.";
			$msg[14] = "The url in field <b>".$fieldname."</b> is not valid.";
			$msg[15] = "There is html code in field <b>".$fieldname."</b>, this is not allowed.";
		}
		return $msg[$num];
	}
}

et ce que lon va appele au debut du formulaire

Code :

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if (isset($_POST['submit'])) {
	$example = new Validate_fields;
	$example->check_4html = true;
 
	$example->add_text_field("Nom", $_POST['nom'], "text", "y");
	$example->add_text_field("Prenom", $_POST['prenom'], "text", "y");
	$example->add_text_field("Adresse", $_POST['adresse1'], "text", "y");
	$example->add_text_field("Code Postal", $_POST['codePostal'], "text", "y");
	$example->add_text_field("Ville", $_POST['ville'], "text", "y");
 
	$example->add_num_field("Number", $_POST['codePostal'], "codePostal", "n", 0, 5);
	$example->add_num_field("Number_with_decimals", $_POST['decimal'], "decimal", "n", 2);
 
	$example->add_check_box("Check_box", "check", "checkbox");
	$example->add_link_field("Email_address", $_POST['email'], "email");
	$example->add_link_field("internet_link", $_POST['url'], "url", "n");
	if ($example->validation()) {
		$error = "All form fields are valid!"; // replace this text if you like...
	} else {
		$error = $example->create_msg();
	}
}
 
 
echo "<p style=\"color:#FF0000;padding-left:65px;\">";
  echo (isset($error)) ? $error : "&nbsp;";
  echo "</p>";

mon probleme est que l'on est oblige de parametrer manuellement chaque champs.

J'aurai voulu directement les integrer lors de mon objet qui cree chaque champs.

[rfufu]

Juste une idée...
Et si tu te basé sur les noms ?
Par exemple, si c'est un champ texte qui contient un mail, lors de sa contruction, tu le nomerais name="mail_kkchose".
Et quand tu ferais la vérification, tu testerais la première partie de ta chaine pour savoir quel type de vérification appliquer...

[hugo69]

c'est un peu ce à quoi j'avais penser, mais je trouve cette solution pas terrible.

Je pensais à quelque chose d'un peu plus professionnel.