3v4l.org

run code in 500+ PHP versions simultaneously
<?php $to = "my-email@gmail.com, $email"; $email = 'test'; echo $to;
Output for 5.6.38 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: email in /in/QIIJu on line 2 my-email@gmail.com,
Output for 7.3.32 - 7.3.33
my-email@gmail.com,
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
Warning: Undefined variable $email in /in/QIIJu on line 2 my-email@gmail.com,
preferences:
35.18 ms | 1147 KiB | 13 Q