- <?php
- if(isset($_POST['email'])){
- $email = $_POST['email'];
- if(filter_var($email, FILTER_VALIDATE_EMAIL)){
- echo '<p>This is a valid email.<p>';
- }else{
- echo '<p>This is an invalid email.</p>';
- }
- }
- ?>
- <form action="" method="post">
- Email: <input type="text" name="email" value=" <?php echo $_POST['email']; ?> ">
- <input type="submit" value="Check Email">
- </form>
来源: http://www.phpxs.com/code/1003340/