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run code in 150+ php & hhvm versions
Bugs & Features
<?php class Foo { private $_instNum; function __construct() { static $i = 0; $this->_instNum = $i++; $GLOBALS["_fooInst{$this->_instNum}"] = $this; eval("function _invokeFoo{$this->_instNum}() { \$args = func_get_args(); return call_user_func_array(array(\$GLOBALS['_fooInst{$this->_instNum}'], '__invoke'), \$args); }"); } function __invoke() { return 'goal!'; } function __toString() { return "_invokeFoo{$this->_instNum}"; } } $foo = new Foo; echo call_user_func("" + $foo);
Output for 7.1.0
Warning: A non-numeric value encountered in /in/RAasF on line 23 Notice: Object of class Foo could not be converted to int in /in/RAasF on line 23 Warning: call_user_func() expects parameter 1 to be a valid callback, no array or string given in /in/RAasF on line 23
Output for 5.3.0 - 7.0.14
Notice: Object of class Foo could not be converted to int in /in/RAasF on line 23 Warning: call_user_func() expects parameter 1 to be a valid callback, no array or string given in /in/RAasF on line 23
Output for 5.1.0 - 5.2.17
Notice: Object of class Foo could not be converted to int in /in/RAasF on line 23 Warning: call_user_func(1): First argument is expected to be a valid callback in /in/RAasF on line 23
Output for 5.0.0 - 5.0.5
Fatal error: Unsupported operand types in /in/RAasF on line 23
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/RAasF on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/RAasF on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/RAasF on line 3
Process exited with code 255.