PHP对比两个数据中不同的元素
/** * 以第一个参数为主进行进行比较 * **/ function diffArray($arr1 , $arr2 ){ $arrRet = array(); #针对关联数组 if(is_assoc($arr1) && is_assoc($arr2) ){ if (empty($arr1)) { $arr1 = array(); } if (empty($arr2)) { $arr2 = array(); } foreach ($arr1 as $key => $value){ if(!in_array($key, array_keys($arr2))){ if(!array_key_exists($key, $arrRet)){ array_push($arrRet, $key); } continue; } if($arr1[$key] !== $arr2[$key]){ if(!array_key_exists($key, $arrRet)){ array_push($arrRet, $key); } } #针对元素为数组的情况 if(is_array($value)){ array_merge($arrRet,diffArray($value,$arr2[$key])); } } }elseif(is_assoc($arr1)===false && is_assoc($arr2)===false) {#针对索引数组 $arrRet = array_merge(array_diff($arr1, $arr2),array_diff($arr2, $arr1)); }else { new Exception("数组类型不一致!"); } return $arrRet; } /** * 判断是否为关联数组 * **/ function is_assoc($arr) { if(!is_array($arr)) return -1; return !(array_values($arr) === $arr); } $arr1 = array( //"channelNameShort"=> "百度时代公司", //"channelName"=>"百度时代责任有限公司", "rawUrl"=>"http://www.baidu.com", "logoUrl"=> "http://t11.baidu.com/it/u=3114404026,3614407463&fm=58", "channelType"=> array( "210010004", "210010007", ), "mobileURL" => "http://www.bb.com", "rockArray" => array( "A" => 1, "B" => array(1,2,3), ), //"null" => array(), ); $arr2 = array( //"channelNameShort"=> "百度时代公司", //"channelName"=>"百度在线公司", "rawUrl"=>"http://www.baidu.com", "logoUrl"=> "http://t11.baidu.com/it/u=3114404026,3614407463&fm=58", "mobileURL" => "", "rockArray" => array( "A" => 1, "B" => 2, ), "channelType"=> array( "210010004", "210010017", ), "null" => array(), ); /*$arr3 = array( 1,2,3,4 ); var_dump(is_assoc($arr1))*/ /*$arr1 = array(1,3,5,7,9); $arr2 = array(1,2,5,6,9);*/ var_dump(diffArray($arr1, $arr2)); var_dump(array_unique(array_merge(diffArray($arr1, $arr2),diffArray($arr2, $arr1))));
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