Email validation using php

<?php
//$email = “xy123@lolhseraha”; // Invalid email address
$email = “somebody@gmail.com”; // Valid email address
// Set up regular expression strings to evaluate the value of email variable against
$regex = ‘/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$/’;
// Run the preg_match() function on regex against the email address
if (preg_match($regex, $email))
{
echo $email . ” is a valid email.”;
}
else {
echo $email . ” is an invalid email.”;
}
?>

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