3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $regexp = '/^[A-Za-z]+((\.|\_){1}[a-zA-Z0-9]+)*@([a-zA-Z0-9]+([\-]{1}[a-zA-Z0-9]+)*[\.]{1})+[a-zA-Z]{2,4}$/'; echo preg_match($regexp, "id.email@gmail.com");
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
1