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Form validation
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<?php | |
function show_error($key) | |
{ | |
global $errors; | |
return !empty($errors[$key]) ? '<div class="error">'. $errors[$key] .'</div>' : ''; | |
} | |
if(!empty($_POST)) | |
{ | |
if(empty($_POST['nom'])) $errors['nom'] = "Le nom ne peut être vide"; | |
if(!preg_match('/^([a-z0-9] )*$/i', $_POST['nom'])) $errors['nom'] = "Le nom doit contenir que les lettres et les chiffres"; | |
if(empty($_POST['email']) OR !filter_var($_POST['email'], FILTER_VALIDATE_EMAIL)) $errors['email'] = "L'email entré n'est pas valide"; | |
if(!empty($_POST['url']) && !filter_var($_POST['url'], FILTER_VALIDATE_URL)) $errors['url'] = "L'URL entré n'est pas valide"; | |
if(empty($_POST['message'])) $errors['message'] = 'Le message ne peut être vide'; | |
} | |
if(empty($errors)) | |
{ | |
echo 'JE VALIDE CES DONNEES AVEC SUCCESS'; | |
} | |
?> | |
<!DOCTYPE html> | |
<html lang="fr"> | |
<head> | |
<meta charset="UTF-8"> | |
<title>Exemple de ton code</title> | |
<style> | |
.error | |
{ | |
color: red; | |
} | |
</style> | |
</head> | |
<body> | |
<form method="post" action="./"> | |
<?php if(!empty($errors)): ?> | |
<legend>Les erreurs ont été trouvées</legend> | |
<?php endif; ?> | |
<div> | |
<label>Nom (*) </label> | |
<input type="text" name="nom"> | |
<?= show_error('nom') ?> | |
</div> | |
<div> | |
<label>Email (*)</label> | |
<input type="email" name="email"> | |
<?= show_error('email') ?> | |
</div> | |
<div> | |
<label>Site web</label> | |
<input type="text" name="url"> | |
<?= show_error('url') ?> | |
</div> | |
<div> | |
<label>Message (*) </label> | |
<textarea name="message"></textarea> | |
<?= show_error('message') ?> | |
</div> | |
<input type="submit" value="Soumettre le formulaire"> | |
</form> | |
</body> | |
</html> |
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