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run code in 150+ php & hhvm versions
Bugs & Features
<?php ini_set('unserialize_callback_func','assert'); var_dump(unserialize('O:7:"phpinfo":0:{}')); assert('$phpinfo');
based on C3jkV
Output for 7.1.0
Warning: Cannot call assert() with string argument dynamically in /in/cnjP5 on line 4 Warning: unserialize(): Function assert() hasn't defined the class it was called for in /in/cnjP5 on line 4 object(__PHP_Incomplete_Class)#1 (1) { ["__PHP_Incomplete_Class_Name"]=> string(7) "phpinfo" } Notice: Undefined variable: phpinfo in /in/cnjP5(5) : assert code on line 1 Warning: assert(): Assertion "$phpinfo" failed in /in/cnjP5 on line 5
Output for 5.4.35 - 5.6.28, 7.0.0 - 7.0.14
Notice: Use of undefined constant phpinfo - assumed 'phpinfo' in /in/cnjP5(4) : assert code on line 1 Warning: unserialize(): Function assert() hasn't defined the class it was called for in /in/cnjP5 on line 4 object(__PHP_Incomplete_Class)#1 (1) { ["__PHP_Incomplete_Class_Name"]=> string(7) "phpinfo" } Notice: Undefined variable: phpinfo in /in/cnjP5(5) : assert code on line 1 Warning: assert(): Assertion "$phpinfo" failed in /in/cnjP5 on line 5
Output for hhvm-3.12.0
object(__PHP_Incomplete_Class)#1 (1) { ["__PHP_Incomplete_Class_Name"]=> string(7) "phpinfo" } Notice: Undefined variable: phpinfo Warning: assert(): Assertion "$phpinfo" failed in /in/cnjP5 on line 5
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.0.4 - 5.4.34
Warning: ini_set() has been disabled for security reasons in /in/cnjP5 on line 3 object(__PHP_Incomplete_Class)#1 (1) { ["__PHP_Incomplete_Class_Name"]=> string(7) "phpinfo" } Notice: Undefined variable: phpinfo in /in/cnjP5(5) : assert code on line 1 Warning: assert(): Assertion "$phpinfo" failed in /in/cnjP5 on line 5
Output for 5.0.0 - 5.0.3
Warning: ini_set() has been disabled for security reasons in /in/cnjP5 on line 3 object(__PHP_Incomplete_Class)#1 (1) { ["__PHP_Incomplete_Class_Name"]=> string(7) "phpinfo" } Notice: Undefined variable: phpinfo in /in/cnjP5(5) : assert code on line 1 Warning: assert(): Assertion "$phpinfo" failed in /in/cnjP5 on line 5
Output for 4.3.5 - 4.4.9
Warning: ini_set() has been disabled for security reasons in /in/cnjP5 on line 3 object(__PHP_Incomplete_Class)(1) { ["__PHP_Incomplete_Class_Name"]=> string(7) "phpinfo" } Notice: Undefined variable: phpinfo in /in/cnjP5(5) : assert code on line 1 Warning: assert(): Assertion "$phpinfo" failed in /in/cnjP5 on line 5
Output for 4.3.2 - 4.3.4
Warning: ini_set,pcntl_fork() has been disabled for security reasons in /in/cnjP5 on line 3 object(__PHP_Incomplete_Class)(1) { ["__PHP_Incomplete_Class_Name"]=> string(7) "phpinfo" } Notice: Undefined variable: phpinfo in /in/cnjP5(5) : assert code on line 1 Warning: assert(): Assertion "$phpinfo" failed in /in/cnjP5 on line 5
Output for 4.3.1
Warning: ini_set,pcntl_fork() has been disabled for security reasons in /in/cnjP5 on line 3 object(__PHP_Incomplete_Class)(1) { ["__PHP_Incomplete_Class_Name"]=> string(7) "phpinfo" } Notice: Undefined variable: phpinfo in /in/cnjP5(5) : assert code on line 1 Warning: assert() [http://www.php.net/function.assert]: Assertion "$phpinfo" failed in /in/cnjP5 on line 5
Output for 4.3.0
Notice: Use of undefined constant phpinfo - assumed 'phpinfo' in /in/cnjP5(4) : assert code on line 1 Warning: 'unserialize_callback_func' (assert) hasn't defined the class it was called for in /in/cnjP5 on line 4 object(__PHP_Incomplete_Class)(1) { ["__PHP_Incomplete_Class_Name"]=> string(7) "phpinfo" } Notice: Undefined variable: phpinfo in /in/cnjP5(5) : assert code on line 1 Warning: assert() [http://www.php.net/function.assert]: Assertion "$phpinfo" failed in /in/cnjP5 on line 5