按值排序数组

Question

I have this post array

Array ( 
[imgurl_3] => http://localhost/wordpress/wp-content/uploads/2014/03/05-239x300.jpg
[imgtekst_3] => Write a text for the slide 
[imgurl_4] => http://localhost/wordpress/wp-content/uploads/2014/03/img_2184-300x225.jpg
[imgtekst_4] => Write a text for the slide 
[update_gallery] => Save changes )

The numbers in the end of the imgurl and imgtekst are dynamic. So. I want to pair the imgurl_3 & imgtekst_3, and so on. To update into a database.

Any smart PHP functions for this?

Thanks

Answer 1

    $array = [
        'imgurl_3' => 'http://localhost/wordpress/wp-content/uploads/2014/03/05-239x300.jpg',
        'imgtekst_3' => 'Write a text for the slide',
        'imgurl_4' => 'http://localhost/wordpress/wp-content/uploads/2014/03/img_2184-300x225.jpg',
        'imgtekst_4' => 'Write a text for the slide',
        'update_gallery' => 'Save changes'
    ];
    $output = [];
    foreach ($array as $key => $item) {
        $intKey = filter_var($key, FILTER_SANITIZE_NUMBER_INT);
        if ($intKey) {
            $key = preg_replace('/_\d/', '', $key);
            $output[$intKey][$key] = $item;
        }
    }
    print_r($output);