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run code in 150+ php & hhvm versions
Bugs & Features
<?php function call(callable $foo) { echo call_user_func($foo); } class Foo { public function bar() { call(array($this, 'baz')); } public function baz() { return 'foo' ; } } (new Foo)->bar();
Output for 5.4.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
foo
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.3.28 - 5.3.29
Parse error: syntax error, unexpected T_OBJECT_OPERATOR in /in/bf4Ij on line 16
Process exited with code 255.
Output for 5.1.0 - 5.3.27
Parse error: syntax error, unexpected T_OBJECT_OPERATOR in /in/FREkk on line 16
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_OBJECT_OPERATOR in /in/FREkk on line 16
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/FREkk on line 3
Process exited with code 255.
Output for 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting ')' in /in/FREkk on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/FREkk on line 3
Process exited with code 255.
Output for 4.3.0
Parse error: parse error, unexpected T_STRING, expecting ')' in /in/bf4Ij on line 3
Process exited with code 255.