Chris@17: <?php
Chris@17: 
Chris@17: /*
Chris@17:  * This file is a part of dflydev/dot-access-data.
Chris@17:  *
Chris@17:  * (c) Dragonfly Development Inc.
Chris@17:  *
Chris@17:  * For the full copyright and license information, please view the LICENSE
Chris@17:  * file that was distributed with this source code.
Chris@17:  */
Chris@17: 
Chris@17: namespace Dflydev\DotAccessData;
Chris@17: 
Chris@17: class Util
Chris@17: {
Chris@17:     /**
Chris@17:      * Test if array is an associative array
Chris@17:      *
Chris@17:      * Note that this function will return true if an array is empty. Meaning
Chris@17:      * empty arrays will be treated as if they are associative arrays.
Chris@17:      *
Chris@17:      * @param array $arr
Chris@17:      *
Chris@17:      * @return boolean
Chris@17:      */
Chris@17:     public static function isAssoc(array $arr)
Chris@17:     {
Chris@17:         return (is_array($arr) && (!count($arr) || count(array_filter(array_keys($arr),'is_string')) == count($arr)));
Chris@17:     }
Chris@17: 
Chris@17:     /**
Chris@17:      * Merge contents from one associtative array to another
Chris@17:      *
Chris@17:      * @param array $to
Chris@17:      * @param array $from
Chris@17:      * @param bool  $clobber
Chris@17:      */
Chris@17:     public static function mergeAssocArray($to, $from, $clobber = true)
Chris@17:     {
Chris@17:         if ( is_array($from) ) {
Chris@17:             foreach ($from as $k => $v) {
Chris@17:                 if (!isset($to[$k])) {
Chris@17:                     $to[$k] = $v;
Chris@17:                 } else {
Chris@17:                     $to[$k] = self::mergeAssocArray($to[$k], $v, $clobber);
Chris@17:                 }
Chris@17:             }
Chris@17: 
Chris@17:             return $to;
Chris@17:         }
Chris@17: 
Chris@17:         return $clobber ? $from : $to;
Chris@17:     }
Chris@17: }