email id validation in php code example

Example 1: check mail php

filter_var($email, FILTER_VALIDATE_EMAIL)

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