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run code in 150+ php & hhvm versions
Bugs & Features
<?php $foo = 0; function mutabledefault($arg=$foo) { var_dump($arg); } $foo = 1; mutabledefault(); $foo = 2; mutabledefault();
Output for hhvm-3.10.0 - 3.12.0
Notice: Undefined variable: foo in /in/A65T8 on line 7 NULL Notice: Undefined variable: foo in /in/A65T8 on line 7 NULL
Output for 5.4.0 - 5.4.28
Parse error: syntax error, unexpected '$foo' (T_VARIABLE) in /in/A65T8 on line 5
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_VARIABLE in /in/A65T8 on line 5
Process exited with code 255.