Email validation php error

Asked

Viewed 322 times

0

I am validating the email field of my form and in order to validate the e-mail structure I need help. When it does, I don’t want it to send the information to the database, I want it to give false and show that the field is invalid and not send the form, and that the user has to write a valid email, but when from Else it sends the form, how can I change it ? Follow a part of my code: 

<?php            $email = array_key_exists('email', $_POST) ? $_POST['email'] : ''; ?>
                <p><label></label></br> <input type="text" name="email" id="email" placeholder="Email" class="form-control input-md" maxlength="50" value="<?php echo $email; ?>"/></p>
                <?php
        if($_POST)
         {
            $email = $_POST['email'];
            if ($email == "") {
                echo '<p style="font-family: Microsoft JhengHei Light;color:#fff;"><strong style="color:#8E0303;">Aviso:</strong> Campo não preenchido!</p>';
            }}
    ?>
    <?php
        if($_POST)
         {
            $email = $_POST['email'];
            if (filter_var($email, FILTER_VALIDATE_EMAIL)) 
            {
                echo '<p style="font-family: Microsoft JhengHei Light;color:#fff;"><strong style="color:#8E0303;">Aviso:</strong> Email válido</p>';
            }else{
            echo"invalido";}
        }
    ?>

I want a help on the part of Else, not to be able to register the user until the field is right...

Note: In the if part, when the user puts the right email and another field is incorrect, the valid email message will appear. Obs²:On top of the input there is something for when the user put the right email and any other field is incorrect, will not delete the text written in the field.

php email validation

2 answers

0


There is a logic error in your code. The final part that starts after the first paragraph (<p></p>, containing the <input...>) could be rewritten, without prejudice, as follows.

<?php
if (isset($_POST['email']) && !empty($_POST['email'])) {
    if (filter_var($_POST['email'], FILTER_VALIDATE_EMAIL)) {
        echo '<p style="font-family: Microsoft JhengHei Light;color:#fff;"><strong style="color:#8E0303;">Aviso:</strong> Email válido</p>';
    } else {
        echo"invalido";
    }
} else {
    echo '<p style="font-family: Microsoft JhengHei Light;color:#fff;"><strong style="color:#8E0303;">Aviso:</strong> Campo não preenchido!</p>';
}

  • Good answer, just a hint when you use empty doesn’t need isset ;), can also be used isset($_POST['email']{0}), would be similar to empty, but to use {0} php5.3 is required+.

0

You can validate the email before you even send the form to PHP using HTML. Example:

<input type="email" placeholder="Insira seu email">

Browser other questions tagged php email validation

You are not signed in. Login or sign up in order to post.