Validate Email

Let's learn how to validate your email.
Use the filter_Var() built-in function.
And use the constant FILTER_VALIDATE_EMAIL as an argument.

How to validate email using filter_Var() function

filter_Var('email address',FILTER_VALIDATE_EMAIL);

The first argument uses an email address and the second uses the constant FILTER_VALIDATE_EMAIL.
As shown in the example, you can change the purpose according to the value of a constant.
Returns true if the email address is valid or false.
The following example validates an email.

<?php
    $email = "mybookforweb@gmail.com";

    $checkMail = filter_Var($email, FILTER_VALIDATE_EMAIL);

    if($checkMail == true) {
        echo "correct email";
    } else {
        echo "Your email address is not correct.";
    }
?>

the result of this code

<?php
    $email = "mybookforweb@";

    $checkMail = filter_Var($email, FILTER_VALIDATE_EMAIL);

    if($checkMail == true) {
        echo "correct email";
    } else {
        echo "Your email address is not correct.";
    }
?>

the result of this code

You can use it to check if the email address you received when you registered is correct. ^^