how to apply email validate using php code example

Example 1: how to validate an email field using php

<?php
   $email = "[email protected]";
   // Validate email
   if (filter_var($email, FILTER_VALIDATE_EMAIL)) {
      echo("$email is a valid email address");
   }
   else{
      echo("$email is not a valid email address");
   }
?>

Example 2: php validate email

//BE CAREFUL!!!
//NEVER VALIDATE A EMAIL WITH A NORMAL PREG MATCH
//I SAW THIS A LOT VALIDATING A EMAIL IS THE BEST TO SEND A EMAIL 
//AND VERIFY
//BECAUSE SOMEONE MIGHT HAVE A RIGHT EMAIL THAT DOESNT WORK BECAUSE OF 
//PREG MATCH