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<?php // The difference between the $fnc() and call_user_func($fnc) class A { function foo() { echo 'foo'; } } class B extends A { function __call($name, $args) { $fnc = 'parent::foo'; call_user_func($fnc); // works $fnc(); // error Call to undefined function parent::foo() } } $b = new B; $b->bar();
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Deprecated: Use of "parent" in callables is deprecated in /in/iBMM2 on line 19 foo Fatal error: Uncaught Error: Class "parent" not found in /in/iBMM2:20 Stack trace: #0 /in/iBMM2(25): B->__call('bar', Array) #1 {main} thrown in /in/iBMM2 on line 20
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 Deprecated: Use of "parent" in callables is deprecated in /in/iBMM2 on line 19 foo Fatal error: Uncaught Error: Class "parent" not found in /in/iBMM2:20 Stack trace: #0 /in/iBMM2(25): B->__call('bar', Array) #1 {main} thrown in /in/iBMM2 on line 20
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
foo Fatal error: Uncaught Error: Class "parent" not found in /in/iBMM2:20 Stack trace: #0 /in/iBMM2(25): B->__call('bar', Array) #1 {main} thrown in /in/iBMM2 on line 20
Process exited with code 255.
Output for 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
foo Fatal error: Uncaught Error: Class 'parent' not found in /in/iBMM2:20 Stack trace: #0 /in/iBMM2(25): B->__call('bar', Array) #1 {main} thrown in /in/iBMM2 on line 20
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
foo Fatal error: Call to undefined function parent::foo() in /in/iBMM2 on line 20
Process exited with code 255.
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