3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo("SELECT * FROM `shop` WHERE `email` regexp '^[a-z]+@[a-z]+\.ru$'; "); echo("SELECT * FROM `shop` WHERE `email` regexp '^[a-z]+@[a-z]+\\.ru$'; "); echo("SELECT * FROM `shop` WHERE `email` regexp '^[a-z]+@[a-z]+\\\.ru$'; "); echo("SELECT * FROM `shop` WHERE `email` regexp '^[a-z]+@[a-z]+\\\\.ru$'; "); echo("SELECT * FROM `shop` WHERE `email` regexp '^[a-z]+@[a-z]+\\\\\.ru$'; ");
Output for 4.3.0 - 7.1.0
SELECT * FROM `shop` WHERE `email` regexp '^[a-z]+@[a-z]+\.ru$'; SELECT * FROM `shop` WHERE `email` regexp '^[a-z]+@[a-z]+\.ru$'; SELECT * FROM `shop` WHERE `email` regexp '^[a-z]+@[a-z]+\\.ru$'; SELECT * FROM `shop` WHERE `email` regexp '^[a-z]+@[a-z]+\\.ru$'; SELECT * FROM `shop` WHERE `email` regexp '^[a-z]+@[a-z]+\\\.ru$';