Php在数组的参数中返回列表

Question

I am trying to get a list of array options and insert this list in a params value, The below is an example of what the output should be. I am using wordpress and say I wanted the array to be a list of all pages or user roles. Where I have the Engineer & FM role this will need to be a dynamic list based on the user roles available in wordpress.

 array(
        "type" => "dropdown",
        "holder" => "div",
        "class" => "",
        "heading" => __( "Select the type of user", "my-text-domain" ),
        "param_name" => "type",
        "group" => __( 'User', 'my-text-domain' ),
        "value" => array(
        'engineer' => 'engineer',
        'fm' => 'fm'),
        'save_always' => true,
        "description" => __( "Pick a dropdown option.", "my-text-domain" )
     ),

As above I want to insert a list of arrays here ( my_array_values ) but they will be dynamic so need to know how to insert the returned into the below as the format above is outputted?

 array(
        "type" => "dropdown",
        "holder" => "div",
        "class" => "",
        "heading" => __( "Select the type of user", "my-text-domain" ),
        "param_name" => "type",
        "group" => __( 'User', 'my-text-domain' ),
        "value" => array(
        my_array_values),
        'save_always' => true,

        "description" => __( "Pick a dropdown option.", "my-text-domain" )
     ),

Answer 1

Simple as:

$foo["value"] = array("engineer" => "engineer", "fm" => "fm");