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run code in 200+ php & hhvm versions
Bugs & Features
<?php class c { function m() { f(); } } function f() { print_r(debug_backtrace()); } (new c)->m(); ?>
based on BBKEf
Output for 5.4.0 - 7.2.0
Array ( [0] => Array ( [file] => /in/ZqR8C [line] => 5 [function] => f [args] => Array ( ) ) [1] => Array ( [file] => /in/ZqR8C [line] => 13 [function] => m [class] => c [object] => c Object ( ) [type] => -> [args] => Array ( ) ) )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected T_OBJECT_OPERATOR in /in/ZqR8C on line 13
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_OBJECT_OPERATOR in /in/ZqR8C on line 13
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/ZqR8C on line 13
Process exited with code 255.