3v4l.org

run code in 300+ PHP versions simultaneously
<?php class c { /** * @param integer $i * @return mixed */ public function test($i) { $self = $this; $test2 = function($x) use(&$test2, $self) { var_dump($x); $x++; if ($x < 10) { $test2($x); $self->test($x); } }; $test2($i); return $i; } } $t = new c(); $t->test(1);
Output for 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, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
int(1) int(2) int(3) int(4) int(5) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(5) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(4) int(5) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(5) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(3) int(4) int(5) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(5) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(4) int(5) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(5) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(2) int(3) int(4) int(5) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(5) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(4) int(5) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(5) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(3) int(4) int(5) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(5) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(4) int(5) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(5) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(6) int(7) int(8) int(9) int(9) int(8) int(9) int(9) int(7) int(8) int(9) int(9) int(8) int(9) int(9)
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/gOcS1 on line 10
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/gOcS1 on line 10
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/gOcS1 on line 8
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/gOcS1 on line 8
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/gOcS1 on line 8
Process exited with code 255.

preferences:
327.36 ms | 401 KiB | 459 Q