- var_dump: documentation ( source)
- array_merge: documentation ( source)
<?php
class MyClass {
protected $arr;
public function __construct() {
$this->arr = array();
}
public function getArr() {
return $this->arr;
}
public function append($arr) {
$this->arr[] = $arr;
}
public function merge($arr) {
$this->arr = array_merge($this->arr, $arr);
}
}
$arr = array('a','b');
$obj = new MyClass();
$obj->append($arr);//使用append无法修改类属性
var_dump($obj->getArr());
//output :
//array(0){}
//$obj->merge($arr);//使用merge可以
//var_dump($obj->getArr());
//output:
//array(2){'a','b'}