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<?php class CbMan { public function fn(callable $cb) { echo $cb(); } } class Pippo { public function yah() { return "hello world"; } } $methods = ['yah']; $aa = function($instance, $methods) { return call_user_func($instance, $methods); }; $cb = $aa($instance, $methods); $cbman = new CbMan(); $cbman->fn($cb);
Output for 8.0.10 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Warning: Undefined variable $instance in /in/8QDht on line 23 Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, no array or string given in /in/8QDht:21 Stack trace: #0 /in/8QDht(23): {closure}(NULL, Array) #1 {main} thrown in /in/8QDht on line 21
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Warning: Undefined variable $instance in /in/8QDht on line 23 Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, no array or string given in /in/8QDht:21 Stack trace: #0 /in/8QDht(23): {closure}(NULL, Array) #1 {main} thrown in /in/8QDht on line 21
Process exited with code 255.
Output for 8.0.0 - 8.0.9
Warning: Undefined variable $instance in /in/8QDht on line 23 Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($function) must be a valid callback, no array or string given in /in/8QDht:21 Stack trace: #0 /in/8QDht(23): {closure}(NULL, Array) #1 {main} thrown in /in/8QDht on line 21
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: instance in /in/8QDht on line 23 Warning: call_user_func() expects parameter 1 to be a valid callback, no array or string given in /in/8QDht on line 21 Fatal error: Uncaught TypeError: Argument 1 passed to CbMan::fn() must be callable, null given, called in /in/8QDht on line 26 and defined in /in/8QDht:5 Stack trace: #0 /in/8QDht(26): CbMan->fn(NULL) #1 {main} thrown in /in/8QDht on line 5
Process exited with code 255.
Output for 7.3.32 - 7.3.33
Warning: call_user_func() expects parameter 1 to be a valid callback, no array or string given in /in/8QDht on line 21 Fatal error: Uncaught TypeError: Argument 1 passed to CbMan::fn() must be callable, null given, called in /in/8QDht on line 26 and defined in /in/8QDht:5 Stack trace: #0 /in/8QDht(26): CbMan->fn(NULL) #1 {main} thrown in /in/8QDht on line 5
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Notice: Undefined variable: instance in /in/8QDht on line 23 Warning: call_user_func() expects parameter 1 to be a valid callback, no array or string given in /in/8QDht on line 21 Catchable fatal error: Argument 1 passed to CbMan::fn() must be callable, null given, called in /in/8QDht on line 26 and defined in /in/8QDht on line 5
Process exited with code 255.
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