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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