<?php
class A {
static function foo() {
echo "A\n";
}
}
class B extends A {
static function foo() {
echo "B\n";
}
}
$cb = array('B', 'parent::parent::foo');
call_user_func($cb);
Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, class "parent::parent" not found in /in/Uqv0C:17
Stack trace:
#0 {main}
thrown in /in/Uqv0C on line 17
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, class "parent::parent" not found in /in/Uqv0C:17
Stack trace:
#0 {main}
thrown in /in/Uqv0C on line 17
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 "parent::parent" not found in /in/Uqv0C:17
Stack trace:
#0 {main}
thrown in /in/Uqv0C on line 17
Process exited with code 255.
Warning: call_user_func(B::parent::parent::foo): First argument is expected to be a valid callback in /in/Uqv0C on line 17
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STATIC, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/Uqv0C on line 5
Process exited with code 255.
Parse error: parse error, unexpected T_STATIC, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/Uqv0C 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/Uqv0C on line 5
Process exited with code 255.