Chris@0: <?php
Chris@0: 
Chris@0: /*
Chris@0:  * This file is a part of dflydev/dot-access-data.
Chris@0:  *
Chris@0:  * (c) Dragonfly Development Inc.
Chris@0:  *
Chris@0:  * For the full copyright and license information, please view the LICENSE
Chris@0:  * file that was distributed with this source code.
Chris@0:  */
Chris@0: 
Chris@0: namespace Dflydev\DotAccessData;
Chris@0: 
Chris@0: class Util
Chris@0: {
Chris@0:     /**
Chris@0:      * Test if array is an associative array
Chris@0:      *
Chris@0:      * Note that this function will return true if an array is empty. Meaning
Chris@0:      * empty arrays will be treated as if they are associative arrays.
Chris@0:      *
Chris@0:      * @param array $arr
Chris@0:      *
Chris@0:      * @return boolean
Chris@0:      */
Chris@0:     public static function isAssoc(array $arr)
Chris@0:     {
Chris@0:         return (is_array($arr) && (!count($arr) || count(array_filter(array_keys($arr),'is_string')) == count($arr)));
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Merge contents from one associtative array to another
Chris@0:      *
Chris@0:      * @param array $to
Chris@0:      * @param array $from
Chris@0:      * @param bool  $clobber
Chris@0:      */
Chris@0:     public static function mergeAssocArray($to, $from, $clobber = true)
Chris@0:     {
Chris@0:         if ( is_array($from) ) {
Chris@0:             foreach ($from as $k => $v) {
Chris@0:                 if (!isset($to[$k])) {
Chris@0:                     $to[$k] = $v;
Chris@0:                 } else {
Chris@0:                     $to[$k] = self::mergeAssocArray($to[$k], $v, $clobber);
Chris@0:                 }
Chris@0:             }
Chris@0: 
Chris@0:             return $to;
Chris@0:         }
Chris@0: 
Chris@0:         return $clobber ? $from : $to;
Chris@0:     }
Chris@0: }