自動目錄
PHP的陣列加項目很簡單,直接給定即可,不必宣告
$arr['one'] = "apple"; $arr[2] = "pineapple";
使用array_push函數
直接使用 array_push():
$arr =array("red","yellow","orange"); array_push($arr, "green", "blue", "black"); print_r($arr); //Array ( [0] => red [1] => yellow [2] => orange [3] => green [4] => blue [5] => black )
另一個範例,不管中間有少了索引1的項目,還是會把項目加在後面
$arr =array(0=>"red",3=>"yellow",2=>"orange"); //Lack of index 1 array_push($arr, "green", "blue", "black"); print_r($arr); //Array ( [0] => red [3] => yellow [2] => orange [4] => green [5] => blue [6] => black )
使用array_push 一次可加多個項目。
使用空白中刮號 []
中刮號的加項目法也很方便
$arr =array(0=>"red",5=>"orange"); $arr[]= "green"; $arr[]= "blue"; $arr[]= "black"; print_r($arr); // Array ( [0] => red [5] => orange [6] => green [7] => blue [8] => black )
整理陣列索引
重新把索引號整理過
上面的例子如果使用 array_values 可以把陣列的索引值重新整理
$arr=array_values($arr); print_r($arr); // Array ( [0] => red [1] => orange [2] => green [3] => blue [4] => black )
做個簡單的筆記
原文 2010-11-02