3v4l.org

run code in 300+ PHP versions simultaneously
<?php $email = "h@hotmail.com"; $em = explode("@",$email); $name = $em[0]; $len = strlen($name); echo substr($name,0, $len/2) . str_repeat('*', $len/2) . "@" . $em[1];
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: Implicit conversion from float 0.5 to int loses precision in /in/vl23R on line 9 Deprecated: Implicit conversion from float 0.5 to int loses precision in /in/vl23R on line 9 @hotmail.com
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
@hotmail.com

preferences:
247.28 ms | 405 KiB | 459 Q