本文介紹了取消設置多維數組中的列的處理方法,對大家解決問題具有一定的參考價值,需要的朋友們下面隨著小編來一起學習吧!
問題描述
我有這個數組 $output 看起來像這樣:
I have this array $output which looks like this:
Array(
[0] => Array(
[0] => 1a
[1] => 1b
[2] => 1c
)
[1] => Array(
[0] => 2a
[1] => 2b
[2] => 2c
)
[2] => Array(
[0] => 3a
[1] => 3b
[2] => 3c
)
[3] => Array(
[0] => 4a
[1] => 4b
[2] => 4c
)
)
等等...
當我想刪除我只使用的第二個元素時:
When I want to remove the second element I just use:
$output = unset($output[1]);
獲得以下內容:
Array(
[0] => Array(
[0] => 1a
[1] => 1b
[2] => 1c
)
[1] => Array(
[0] => 3a
[1] => 3b
[2] => 3c
)
[2] => Array(
[0] => 4a
[1] => 4b
[2] => 4c
)
)
我的問題是如何刪除數組中每個元素的第二個元素 ([0][1], [1][1], [2][1], [3][1] ,...) 得到以下內容:
My question is how to remove every second element of every element in the array ([0][1], [1][1], [2][1], [3][1] ,...) to get the following:
Array(
[0] => Array(
[0] => 1a
[1] => 1c
)
[1] => Array(
[0] => 2a
[1] => 2c
)
[2] => Array(
[0] => 3a
[1] => 3c
)
[3] => Array(
[0] => 4a
[1] => 4c
)
)
推薦答案
不能用簡單的命令完成,但可以使用循環:
Can't be done with a simple command, but you can use a loop:
foreach(array_keys($output) as $key) {
unset($output[$key][1]);
}
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