<?php
class A {
protected $name;
public function __construct($name)
{
$this->name = $name;
}
public function isTest()
{
return $this->name === 'test';
}
}
$things = array();
$things[] = new A('aaa');
$things[] = new A('bbb');
$things[] = new A('test');
$things[] = new A('ddd');
var_dump(array_filter($things, array('isTest', '$this')));
Fatal error: Uncaught TypeError: array_filter(): Argument #2 ($callback) must be a valid callback or null, class "isTest" not found in /in/gmai7:24
Stack trace:
#0 /in/gmai7(24): array_filter(Array, Array)
#1 {main}
thrown in /in/gmai7 on line 24
Process exited with code 255.
Output for 8.0.0 - 8.0.30
Fatal error: Uncaught TypeError: array_filter(): Argument #2 ($callback) must be a valid callback, class "isTest" not found in /in/gmai7:24
Stack trace:
#0 /in/gmai7(24): array_filter(Array, Array)
#1 {main}
thrown in /in/gmai7 on line 24
Process exited with code 255.
Warning: array_filter(): The second argument, 'isTest::$this', should be a valid callback in /in/gmai7 on line 24
NULL
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/gmai7 on line 4
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/gmai7 on line 4
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/gmai7 on line 4
Process exited with code 255.