CODE EXAMPLE FOR JAVASCRIPT

regex email

<?php
if (preg_match("^[a-zA-Z0-9.a-zA-Z0-9.!#$%&'*+-/=?^_`{|}~]+@[a-zA-Z0-9]+.[a-zA-Z]+", $argv[1])) {
    echo "Match";
} else {
    echo "No Match";
}
?>