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<?php class A { public function x() { return 'x'; } } $a = new A(); var_dump( call_user_func([$a, 'x']), call_user_func([$a, 'y']) );
Output for 8.0.10 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, class A does not have a method "y" in /in/guDVU:13 Stack trace: #0 {main} thrown in /in/guDVU on line 13
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 Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, class A does not have a method "y" in /in/guDVU:13 Stack trace: #0 {main} thrown in /in/guDVU on line 13
Process exited with code 255.
Output for 8.0.0 - 8.0.9
Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($function) must be a valid callback, class A does not have a method "y" in /in/guDVU:13 Stack trace: #0 {main} thrown in /in/guDVU on line 13
Process exited with code 255.
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: call_user_func() expects parameter 1 to be a valid callback, class 'A' does not have a method 'y' in /in/guDVU on line 13 string(1) "x" NULL
preferences:
215.02 ms | 403 KiB | 288 Q