将数组插入指定数组中的指定位置

Question

在下面的数组中,如何将新数组推送到指定位置的$ options数组？

$options = array (
    array( "name" => "My Options",
    "type" => "title"),
    array( "type" => "open"),

    array("name" => "Test",
    "desc" => "Test",
    "id" => $shortname."_theme",
    "type" => "selectTemplate",
    "options" => $mydir ),

//I want the pushed array inserted here.

    array("name" => "Test2",
    "desc" => "Test",
    "id" => "test2",
    "type" => "test",
    "options" => $mydir ),

    array( "type" => "close")
    );

    if(someCondition=="met")
    {
    array_push($options, array( "name" => "test",
        "desc" => "description goes here",
        "id" => "testMet",
        "type" => "checkbox",
        "std" => "true"));
    }

Answer 1

你可以用array_splice.对于你的例子:

if($some_condition == 'met') {
  // splice new option into array at position 3
  array_splice($options, 3, 0, array($new_option));
}

注意:array_splice期望最后一个参数是新元素的数组,因此对于您的示例,您需要传递包含新选项数组的数组.