La validation de formulaire PHP ne fonctionne pas correctement

Question

Je suis novice en PHP, et je cours le soir. Nous avons un projet pour une validation de formulaire. J'ai le code suivant, mais quand je clique sur submit, il redirige simplement vers le site désiré, sans faire la validation requise.

<?php 
$checkedMale = $_POST['gender'] == 'Male' ? "checked='checked'" : ''; 
$checkedFemale = $_POST['gender'] != 'Male' ? "checked='checked'" : ''; 
$formValidates = false; 
if(isset($_POST['submit']) && $_POST['submit'] == 'Register') { 
$errors = array(); 
if ($_POST['firstName'] == '') { 
    $errors[] = '<p>Please fill in your first name</p>'; 
} 
if ($_POST['surname'] == '') {  
    $errors[] = '<p>Please fill in your surname</p>';     
}  
if ($_POST['email'] == '') {  
    $errors[] = '<p>Please fill in your e-mail address</p>';   
     } else {  
       if (! filter_var ($_POST['email'],FILTER_VALIDATE_EMAIL)) { 
         $errors[] = "<p>Please supply a valid e-mail address</p>"; 
        } 
       }  
if ($_POST['address'] == '') {  
    $errors[] = '<p>Please fill in your postal address</p>';     
} 
if (count($errors)== 0) { 
    $formValidates = true; 
} 
} 
if (! $formValidates) { 
// Displays errors 
if (count($errors) > 0) { 
     echo "\n<ul>"; 
    foreach ($errors as $error){ 
     echo "\n\t<li>$error</li>"; 
    } 
    echo "\n<ul>"; 
} 
?> 
<form name="questions" action="lesson8_1.php" method="post"> 
    <table> 
     <tr> 
      <th>Title:</th> 
      <td> 
       <select name="title"> 
        <option value="">Select</option> 
        <option>Mr</option> 
        <option>Mrs</option> 
        <option>Miss</option> 
        <option>Dr</option>      
       </select> 
      </td> 
     </tr> 
     <tr> 
      <th>First name:</th> 
      <td><input type="text" name="firstName" placeholder="First Name..." value="" /></td> 
     </tr> 
     <tr> 
      <th>Surname:</th> 
      <td><input type="text" name="surname" placeholder="Surname..." value="" /></td>         
     </tr> 
     <tr> 
      <th>Email:</th> 
      <td><input type="text" name="email" placeholder="E-mail Address..." value="" /></td> 
     </tr> 
     <tr> 
      <th>Address:</th> 
      <td><textarea name="address" placeholder="Postal Address..."></textarea></td> 
     </tr> 
     <tr> 
      <th>Gender:</th> 
      <td> 
       <input type="radio" name="gender" value="Male"  <?php echo $checkedMale?> >Male<br> 
       <input type="radio" name="gender" value="Female" <?php echo $checkedFemale?> >Female<br> 
      </td> 
     </tr> 
     <tr> 
      <th></th> 
      <td>       
       <input type='checkbox' name='option[]' value='Car' 
       <?php echo in_array('Car', $_POST['option']) ? 'checked' : '' ?>>I have a Car licence<br> 
       <input type='checkbox' name='option[]' value='Motorcycle' 
       <?php echo in_array('Motorcycle', $_POST['option']) ? 'checked' : '' ?>>I have a Motorcycle licence<br> 
       <input type='checkbox' name='option[]' value='Fishing' 
       <?php echo in_array('Fishing', $_POST['option']) ? 'checked' : '' ?>>I have a Fishing licence<br> 
       <input type='checkbox' name='option[]' value='TV' 
       <?php echo in_array('TV', $_POST['option']) ? 'checked' : '' ?>>I have a TV licence<br> 
       <input type='checkbox' name='option[]' value='Dog' 
       <?php echo in_array('Dog', $_POST['option']) ? 'checked' : '' ?>>I have a Dog licence<br> 
      </td> 
     </tr> 
     <tr> 
      <th></th> 
      <td><input type="submit" name="submit" value="Register" /></td> 
     </tr> 
    </table> 
</form> 
<?php } else { ?> 
<h1>Your form has been successfully submitted!</h1> 
<?php } ?> 

Answer 1

Si votre fichier php s'appelle: 'lesson8_1.php', le formulaire fonctionne correctement. Il y a quelques variables indéfinies, mais quand vous les soumettez, elles retournent la validation désirée (je suis en test en local).

• S'il vous plaît remplir votre prénom

• S'il vous plaît remplir votre nom

• S'il vous plaît indiquer votre adresse e-mail

• S'il vous plaît remplir votre adresse postale

  Titre: ...

MISE À JOUR

Votre code ne stocke pas les valeurs déjà introduites si un champ est manquant, vous pouvez ajouter:

<input .... value="<?php if(isset($_POST['firstName'])){ echo $_POST['firstName']; } ?>" /> 

(dans toutes vos entrées), puis, si le formulaire est soumis , mais n'est pas valide, les valeurs sont conservées dans le formulaire.

MISE À JOUR:

Enregistrer ce code comme: lesson8.php

<?php 

$checkedMale = $_POST['gender'] == 'Male' ? "checked='checked'" : ''; 
$checkedFemale = $_POST['gender'] != 'Male' ? "checked='checked'" : ''; 
$formValidates = false; 

if(isset($_POST['submit']) && $_POST['submit'] == 'Register') { 
    $errors = array(); 
    if (!isset($_POST['firstName']) || $_POST['firstName'] == '') { 
     $errors[] = '<p>Please fill in your first name</p>'; 
    } 
    if (!isset($_POST['surname']) || $_POST['surname'] == '') {  
     $errors[] = '<p>Please fill in your surname</p>';     
    }  
    if (!isset($_POST['email']) || $_POST['email'] == '') {  
     $errors[] = '<p>Please fill in your e-mail address</p>';   
    } else {  
     if (! filter_var ($_POST['email'],FILTER_VALIDATE_EMAIL)) { 
      $errors[] = "<p>Please supply a valid e-mail address</p>"; 
     } 
    }  
    if (!isset($_POST['address']) || $_POST['address'] == '') {  
     $errors[] = '<p>Please fill in your postal address</p>';     
    } 
    if (count($errors)== 0) { 
     $formValidates = true; 
    } 
} 

if (! $formValidates) { 
    // Displays errors 
    if (count($errors) > 0) { 
      echo "\n<ul>"; 
     foreach ($errors as $error){ 
      echo "\n\t<li>$error</li>"; 
     } 
     echo "\n<ul>"; 
    } 
?> 
    <form name="questions" action="lesson8.php" method="post"> 
     <table> 
      <tr> 
       <th>Title:</th> 
       <td> 
        <select name="title"> 
         <option value="">Select</option> 
         <option>Mr</option> 
         <option>Mrs</option> 
         <option>Miss</option> 
         <option>Dr</option>      
        </select> 
       </td> 
      </tr> 
      <tr> 
       <th>First name:</th> 
       <td><input type="text" name="firstName" placeholder="First Name..." value="<?php if(isset($_POST['firstName'])){ echo $_POST['firstName']; }?>" /></td> 
      </tr> 
      <tr> 
       <th>Surname:</th> 
       <td><input type="text" name="surname" placeholder="Surname..." value="<?php if(isset($_POST['surname'])){ echo $_POST['surname']; }?>" /></td>         
      </tr> 
      <tr> 
       <th>Email:</th> 
       <td><input type="text" name="email" placeholder="E-mail Address..." value="<?php if(isset($_POST['email'])){ echo $_POST['email']; }?>" />" /></td> 
      </tr> 
      <tr> 
       <th>Address:</th> 
       <td><textarea name="address" placeholder="Postal Address..."></textarea></td> 
      </tr> 
      <tr> 
       <th>Gender:</th> 
       <td> 
        <input type="radio" name="gender" value="Male"  <?php echo $checkedMale?> >Male<br> 
        <input type="radio" name="gender" value="Female" <?php echo $checkedFemale?> >Female<br> 
       </td> 
      </tr> 
      <tr> 
       <th></th> 
       <td>       
        <input type='checkbox' name='option[]' value='Car' 
        <?php echo in_array('Car', $_POST['option']) ? 'checked' : '' ?>>I have a Car licence<br> 
        <input type='checkbox' name='option[]' value='Motorcycle' 
        <?php echo in_array('Motorcycle', $_POST['option']) ? 'checked' : '' ?>>I have a Motorcycle licence<br> 
        <input type='checkbox' name='option[]' value='Fishing' 
        <?php echo in_array('Fishing', $_POST['option']) ? 'checked' : '' ?>>I have a Fishing licence<br> 
        <input type='checkbox' name='option[]' value='TV' 
        <?php echo in_array('TV', $_POST['option']) ? 'checked' : '' ?>>I have a TV licence<br> 
        <input type='checkbox' name='option[]' value='Dog' 
        <?php echo in_array('Dog', $_POST['option']) ? 'checked' : '' ?>>I have a Dog licence<br> 
       </td> 
      </tr> 
      <tr> 
       <th></th> 
       <td><input type="submit" name="submit" value="Register" /></td> 
      </tr> 
     </table> 
    </form> 
<?php } else { ?> 
    <h1>Your form has been successfully submitted!</h1> 
    <!-- here you can redirect with php to the desired location --> 
<?php } ?> 

Et cela fonctionne comme vous désiré, je suppose.