<?php
class A {
private static function foo() {
echo "A\n";
}
}
class B extends A {
static function foo() {
echo "B\n";
}
}
$cb = array('B', 'parent::foo');
call_user_func($cb);
Deprecated: Callables of the form ["B", "parent::foo"] are deprecated in /in/97Q7p on line 17
Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, cannot access private method A::foo() in /in/97Q7p:17
Stack trace:
#0 {main}
thrown in /in/97Q7p on line 17
Process exited with code 255.
Output for 8.0.10 - 8.0.30, 8.1.0 - 8.1.28
Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, cannot access private method A::foo() in /in/97Q7p:17
Stack trace:
#0 {main}
thrown in /in/97Q7p 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, cannot access private method A::foo() in /in/97Q7p:17
Stack trace:
#0 {main}
thrown in /in/97Q7p on line 17
Process exited with code 255.
Warning: call_user_func(B::parent::foo): First argument is expected to be a valid callback in /in/97Q7p on line 17
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/97Q7p on line 5
Process exited with code 255.
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/97Q7p 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/97Q7p on line 5
Process exited with code 255.