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--TEST--
Test array_map() function : object functionality - class methods as callback function
--FILE--
<?php
/* Prototype : array array_map ( callback $callback , array $arr1 [, array $... ] )
* Description: Applies the callback to the elements of the given arrays
* Source code: ext/standard/array.c
*/
/*
* Testing array_map() for object functionality with following callback function variations:
* 1) child class method using parent object
* 2) parent class method using child object
* 3) child class method using parent class
* 4) parent class method using child class
*/
echo "*** Testing array_map() : class methods as callback function ***\n";
$arr1 = array(1, 5, 7);
class ParentClass
{
public $var1 = 10;
public static function staticParent1($n) {
return $n;
}
private static function staticParent2($n) {
return $n;
}
}
class ChildClass extends ParentClass
{
var $parent_obj;
public function __construct ( ) {
$this->parent_obj = new ParentClass();
}
public $var2 = 5;
public static function staticChild($n) {
return $n;
}
public function nonstaticChild($n) {
return $n;
}
}
$childobj = new ChildClass();
$parentobj = new ParentClass();
echo "-- accessing parent method from child class --\n";
var_dump( array_map(array('ChildClass', 'staticParent1'), $arr1) );
echo "-- accessing child method from parent class --\n";
var_dump( array_map(array('ParentClass', 'staticChild'), $arr1) );
echo "-- accessing parent method using child class object --\n";
var_dump( array_map(array($childobj, 'staticParent1'), $arr1) );
echo "-- accessing child method using parent class object --\n";
var_dump( array_map(array($parentobj, 'staticChild'), $arr1) );
echo "Done";
?>
--EXPECTF--
*** Testing array_map() : class methods as callback function ***
-- accessing parent method from child class --
array(3) {
[0]=>
int(1)
[1]=>
int(5)
[2]=>
int(7)
}
-- accessing child method from parent class --
Warning: array_map() expects parameter 1 to be a valid callback, class 'ParentClass' does not have a method 'staticChild' in %s on line %d
NULL
-- accessing parent method using child class object --
array(3) {
[0]=>
int(1)
[1]=>
int(5)
[2]=>
int(7)
}
-- accessing child method using parent class object --
Warning: array_map() expects parameter 1 to be a valid callback, class 'ParentClass' does not have a method 'staticChild' in %s on line %d
NULL
Done