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<?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 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
goal!
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Notice: Object of class Foo to string conversion in /in/jKrYI on line 23 Warning: call_user_func(Object): First argument is expected to be a valid callback in /in/jKrYI on line 23
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/jKrYI on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/jKrYI 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/jKrYI on line 3
Process exited with code 255.
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