3v4l.org

run code in 300+ PHP versions simultaneously
<?php function myTest(){ static $x=0; echo "$x"; $x++; } myTest(); echo "$x"; myTest(); echo "$x"; myTest(); ?>
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
0 Warning: Undefined variable $x in /in/RalkZ on line 8 1 Warning: Undefined variable $x in /in/RalkZ on line 10 2
Output for 7.0.0 - 7.0.31, 7.1.0 - 7.1.21, 7.2.0 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
0 Notice: Undefined variable: x in /in/RalkZ on line 8 1 Notice: Undefined variable: x in /in/RalkZ on line 10 2
Output for 7.3.32 - 7.3.33
012
preferences:
146.12 ms | 401 KiB | 205 Q