添加字符串数组，逗留阵列

Question

我有两个数组：

$delete = array("Delete" => "Delete"); 

$folders = array("0" => "folder1","1" => "folder2"); 

$options = array_merge($delete, $folders); 

如何添加“移动到” $文件夹，并有$选项留为数组？

在下拉菜单，这将表现为下降：

Delete 

Move to folder1 

Move to folder2 

Answer 1

如果你想添加了 “移动到” 字符串到$文件夹数组的每个元素，试试这个：

$folders = array("0" => "folder1","1" => "folder2"); 
foreach($folders as $key => $value) { 
    $folders[$key] = 'Move to '.$value; 
} 
$options = array_merge($delete, $folders); 

OR（基于@zamnuts的建议）

$folders = array("0" => "folder1","1" => "folder2"); 

function moveto($n) { 
    return 'Move to '.$n; 
} 
$folders = array_map("moveto", $folders); 
$options = array_merge($delete, $folders); 

Answer 2

这应该做你需要的东西：

$folders[] = "Move to"; 

$options = array_merge($delete, $folders); 

Answer 3

如果真正的问题不知道，但只是array_merge()调用与后添加它$folders[] = "Move to"。由于array_merge()产生一个新的阵列，所以对$delete或$folders进行任何修改后都不会影响$options的内容。