henrikbjorn · September 13, 2010 13:54 · henrikbjorn · Sep 13, 2010
diff --git a/gistfile1.php b/gistfile1.php
 <?php


 function checkEmail($email) {
    // checks proper syntax
    if(preg_match("/^([a-z])([a-z0-9._])+([a-z0-9])\@([a-z0-9])*([a-z])+(-[a-z])*([a-z0-9])*(\.([a-z0-9])*([a-z])+(-[a-z])*([a-z0-9])*)+$/i" , $email)) {
        // gets domain name
        list($username, $domain) = split('@', $email);
        // checks for if MX records in the DNS
        if(checkdnsrr($domain, 'MX')) {
            return true;
        }

    }

    return false;
 }

diff --git a/gistfile2.txt b/gistfile2.txt
	<?php


	function checkEmail($email) {
	// checks proper syntax
	if(preg_match("/^([a-z])([a-z0-9._])+([a-z0-9])\@([a-z0-9])([a-z])+(-[a-z])([a-z0-9])(\.([a-z0-9])([a-z])+(-[a-z])([a-z0-9]))+$/i" , $email)) {
	// gets domain name
	list($username, $domain) = split('@', $email);
	// checks for if MX records in the DNS
	if(checkdnsrr($domain, 'MX')) {
	return true;
	}

	}

	return false;
	}