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<?php function userland_call_user_func($function, ...$args) { if (! is_array($function)) { return $function(...$args); } $object = reset($function); if (is_object($object)) { return Closure::bind(function () use ($args, $function) { return $function(...$args); }, $object, get_class($object))->__invoke(); } return $function(...$args); } class Test1 { private function foo() { echo new Exception; } public function callFoo($callfunc) { $new=new Test2; $callfunc(array($new, 'foo')); } } class Test2 { private function foo() { echo new Exception; } } $o = new Test1; $o->callFoo('userland_call_user_func'); $o->callFoo('call_user_func');
Output for 8.4.1 - 8.4.14, 8.5.0
Exception in /in/rgmh8:24 Stack trace: #0 /in/rgmh8(12): Test2->foo() #1 /in/rgmh8(13): Test2->{closure:userland_call_user_func():11}() #2 /in/rgmh8(13): Closure->__invoke() #3 /in/rgmh8(21): userland_call_user_func(Array) #4 /in/rgmh8(29): Test1->callFoo('userland_call_u...') #5 {main} Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, cannot access private method Test2::foo() in /in/rgmh8:21 Stack trace: #0 /in/rgmh8(21): call_user_func(Array) #1 /in/rgmh8(30): Test1->callFoo('call_user_func') #2 {main} thrown in /in/rgmh8 on line 21
Process exited with code 255.
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27
Exception in /in/rgmh8:24 Stack trace: #0 /in/rgmh8(12): Test2->foo() #1 /in/rgmh8(13): Test2->{closure}() #2 /in/rgmh8(13): Closure->__invoke() #3 /in/rgmh8(21): userland_call_user_func(Array) #4 /in/rgmh8(29): Test1->callFoo('userland_call_u...') #5 {main} Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, cannot access private method Test2::foo() in /in/rgmh8:21 Stack trace: #0 /in/rgmh8(21): call_user_func(Array) #1 /in/rgmh8(30): Test1->callFoo('call_user_func') #2 {main} thrown in /in/rgmh8 on line 21
Process exited with code 255.
Output for 7.0.0 - 7.0.31, 7.1.0 - 7.1.23, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33
Exception in /in/rgmh8:24 Stack trace: #0 /in/rgmh8(12): Test2->foo() #1 /in/rgmh8(13): Test2->{closure}() #2 /in/rgmh8(13): Closure->__invoke() #3 /in/rgmh8(21): userland_call_user_func(Array) #4 /in/rgmh8(29): Test1->callFoo('userland_call_u...') #5 {main} Warning: call_user_func() expects parameter 1 to be a valid callback, cannot access private method Test2::foo() in /in/rgmh8 on line 21
Output for 5.6.0 - 5.6.38
exception 'Exception' in /in/rgmh8:24 Stack trace: #0 /in/rgmh8(12): Test2->foo() #1 /in/rgmh8(13): Test2->{closure}() #2 /in/rgmh8(13): Closure->__invoke() #3 /in/rgmh8(21): userland_call_user_func(Array) #4 /in/rgmh8(29): Test1->callFoo('userland_call_u...') #5 {main} Warning: call_user_func() expects parameter 1 to be a valid callback, cannot access private method Test2::foo() in /in/rgmh8 on line 21
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38
Parse error: syntax error, unexpected '.', expecting '&' or variable (T_VARIABLE) in /in/rgmh8 on line 3
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '.', expecting '&' or T_VARIABLE in /in/rgmh8 on line 3
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '.', expecting '&' or T_VARIABLE in /in/rgmh8 on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '.', expecting '&' or T_VARIABLE or T_CONST in /in/rgmh8 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 '.', expecting '&' or T_VARIABLE or T_CONST in /in/rgmh8 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'&'' or `T_VARIABLE' or `T_CONST' in /in/rgmh8 on line 3
Process exited with code 255.
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