a method for deploying a dev site without having to update every reference to the new site. perfect for when your local dev is using a host file but you want to show your client some progress.For wordpress add this to wp-config.php at the top and edit the $old and $new variables for the domains you need to edit.

Local Wordpress Buffer

function ob_local_dev($buffer){
	$old = "http://example.com";
	$new = "http://dev.example.com";
	return str_replace($old, $new, $buffer);
}
ob_start("ob_local_dev");