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run code in 150+ php & hhvm versions
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<?php $a = array($a); function fill (&$a, $i = 3) { if (!$i--) return; foreach ($a as &$tmp) { $tmp = array($tmp ,&$a); //var_dump($a); fill($tmp, $i); } } fill($a);
Output for 5.5.0 - 5.6.28, 7.0.0 - 7.1.0
Notice: Undefined variable: a in /in/C89QU on line 2
Process exited with code 139.
Output for hhvm-3.12.0
Notice: Undefined variable: a in /in/C89QU on line 2 mallctl opt.prof: No such file or directory (2) Fatal error: request has exceeded memory limit in /in/C89QU on line 4
Process exited with code 255.
Output for hhvm-3.10.0
Notice: Undefined variable: a in /in/C89QU on line 2 Fatal error: request has exceeded memory limit in /in/C89QU on line 4
Process exited with code 255.
Output for 5.4.0 - 5.4.45
Notice: Undefined variable: a in /in/C89QU on line 2 Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 72 bytes) in /in/C89QU on line 6
Process exited with code 255.
Output for 5.2.7 - 5.3.29
Notice: Undefined variable: a in /in/C89QU on line 2 Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 71 bytes) in /in/C89QU on line 6
Process exited with code 255.
Output for 5.2.1 - 5.2.6
Notice: Undefined variable: a in /in/C89QU on line 2 Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 24 bytes) in /in/C89QU on line 4
Process exited with code 255.
Output for 5.0.4 - 5.2.0
Notice: Undefined variable: a in /in/C89QU on line 2
Process exited with code 137.
Output for 5.0.0 - 5.0.3
Notice: Undefined variable: a in /in/C89QU on line 2
Process exited with code 137.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/C89QU on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected '&', expecting T_VARIABLE or '$' in /in/C89QU on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/C89QU on line 5
Process exited with code 255.