PHP如何在foreach循環中合併數組

Question

如何將foreach循環中的所有$related_array合併到1個非multidimesional數組中。

$get_categories = $wpdb->get_results("SELECT related FROM wp_pato_category_related WHERE slug IN ('$categories')"); 

       foreach($get_categories as $array) { 
         $related_array = unserialize($array->related); 


       } 

Answer 1

您可以拼合使用在你的代碼Standard PHP Library (SPL)

所以陣列，壓平$ related_array與RecursiveArrayIterator

$related_flat = new RecursiveIteratorIterator(new RecursiveArrayIterator($related_array));