How to Validate an Email Address Using PHP

In this article, we show how to validate an email address using PHP.
This is to make sure that the email that a user enters into an email text box is actually a valid email address.
PHP has a built-in function, filter_var() function, to check for email validation.
PHP Code
The PHP code to validate an email is shown below.
We create a variable named $email. We set to an example email.
We then create an if statement that if the filter_var() function with the $email as one of its parameters is true (not false), then it is a valid email address. Otherwise, it's an invalid email address.
It's really easy to validate an email address in PHP because it has a built-in function that checks for validation.
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