3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = 0; function foobar($a) { if ($a < 51) { echo "$a\n"; foobar($a + 1); } } print foobar();
Output for 7.1.0 - 7.2.0
Fatal error: Uncaught ArgumentCountError: Too few arguments to function foobar(), 0 passed in /in/F67V7 on line 10 and exactly 1 expected in /in/F67V7:3 Stack trace: #0 /in/F67V7(10): foobar() #1 {main} thrown in /in/F67V7 on line 3
Process exited with code 255.
Output for 5.5.0 - 7.0.20
Warning: Missing argument 1 for foobar(), called in /in/F67V7 on line 10 and defined in /in/F67V7 on line 3 Notice: Undefined variable: a in /in/F67V7 on line 5 Notice: Undefined variable: a in /in/F67V7 on line 6 Notice: Undefined variable: a in /in/F67V7 on line 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50