To verify an email address using PHP, you can use the filter_var function along with the FILTER_VALIDATE_EMAIL flag. Here is an example:



In this example, the `filter_var` function checks whether the email variable is a valid email address using the `FILTER_VALIDATE_EMAIL` flag. If it returns true, then the email is considered valid. Otherwise, it is considered not valid.

Make sure to replace `$_POST[’email’]` with the actual variable that holds the email address in your code.

Note: This method only verifies the basic email format according to RFC 822. It does not guarantee the existence of the email address. For more advanced email verification, you can use third-party APIs or libraries.