有没有一种快速，简单的方法来反转PHP中的嵌套数组？

Question

By inverse I mean from the following:

$my_array = array(
    "header" => array(
        0 => "Header 1",
        1 => "Header 2"
    ),
    "paragraph" => array(
        0 => "Paragraph 1",
        1 => "Paragraph 2"
    )
);

to this:

$my_new_array = array(
    0 => array(
        "header" => "Header 1",
        "paragraph" => "Paragraph 1"
    ),
    1 => array(
        "header" => "Header 2",
        "paragraph" => "Paragraph 2"
    )
);

I know that I can do this:

$my_new_array = array();
foreach ( $my_array["header"] as $key => $header ){
    if ( !is_array( $my_new_array[ $key ] ) ){
        $my_new_array[ $key ] = array();
    }
    $my_new_array[ $key ]["header"] = $header;
}
foreach ( $my_array["paragraph"] as $key => $paragraph ){
    $my_new_array[ $key ]["paragraph"] = $paragraph;
}

But I was wondering if there was a quick PHP function to do this or a more optimal way. I couldn't find any such function in the PHP function directory, and i can't think of a more optimal way!

Cheers

Answer 1

This would work without using concrete keys:

$new = array();
foreach ($my_array as $key => $values) {
  foreach ($values as $idx => $value) {
    $new[$idx][$key] = $value;
  }
}