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<?php class Foo { public function __invoke($a, $b) { echo "$a - $b\n"; } } class Bar { public $f; public function __construct() { $this->f = new Foo; } } $b = new Bar; $f = $b->f; $b->f('hello', 'world'); call_user_func($b->f, 'hello', 'world'); // i assume php assumes that f is a method here, // so this fails! Bar::f() does not exist... // $b->f('hello', 'world'); // php simply cannot parse this for whatever // reason. seems like it shoudl be able to. :) // ($b->f)('hello', 'world');
Output for 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
Fatal error: Uncaught Error: Call to undefined method Bar::f() in /in/XJ6aD:24 Stack trace: #0 {main} thrown in /in/XJ6aD on line 24
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.1 - 5.1.6, 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
Fatal error: Call to undefined method Bar::f() in /in/XJ6aD on line 24
Process exited with code 255.
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/XJ6aD on line 34
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/XJ6aD on line 5
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/XJ6aD on line 5
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/XJ6aD on line 5
Process exited with code 255.
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