PHP递归删除多维数组中的某个值

前端之家收集整理的这篇文章主要介绍了PHP递归删除多维数组中的某个值前端之家小编觉得挺不错的,现在分享给大家,也给大家做个参考。

今天在做业务逻辑的过程中,需要在一个不确定的多维数组中删除某个特定的key,查了挺长时间加上自己的修改,终于满足了业务逻辑,该方法修改后应该可以适用于很多地方,所以记录下来以备后用,我这里是一个多维数组,还是json_encode后的,主要目的是删除所有old_tags_id数组中有tag_id=264的数据,顺便要删除相应的tag_name,还有 addtag要减1,,代码如下:

先放递归函数,当然这里是核心,很多人看了这个应该就已经知道如何使用了.

$val) { if ($key === 'old_tags_id') { foreach ($val as $tagKey => $tagVaule) { if ($tagVaule == $tag_id) { unset($menuData['old_tags_id'][$tagKey]); unset($menuData['old_tags'][$tagKey]); $menuData['addtag']--; } } } if (is_array($val)) { self::dealMenuTagDelete($menuData[$key],$tag_id); } } return $menuData; }

维数组长这样,还是jeson_encode后的格式:

PHP;"> [ { "typ": "res_ejcd","tit": "message1","data": "1@2@3","subdata": { "zizicd1": { "typ": "res_wb","data": "qqqq","addtag": 1,"old_tags": [ "\"campaign综合分析\"","test add a tag" ],"old_tags_id": [ "264","17" ],"new_tags_id": [],"tit": "1" },"zizicd2": { "typ": "res_wb","data": "wwww","old_tags": [ "test add a tag" ],"old_tags_id": [ "17" ],"tit": "2" },"zizicd3": { "typ": "res_wb","data": "ddd","old_tags": [],"old_tags_id": [],"new_tags_id": [ "new_tag1" ],"tit": "3" } },"addtag": 0,"new_tags_id": [] },{ "typ": "res_tw","tit": "Post","data": "2121","subdata": null,"old_tags": [ "“519引号阅读user message图文”" ],"old_tags_id": [ "183" ],{ "typ": "res_wb","tit": "Today1","data": "12312321","dynamicdata": "{\"default\":{\"message_type\":\"1\",\"val\":\"dynamic\"},\"segementation\":[{\"segId\":\"451\",\"message_type\":\"1\",\"val\":\"你属于conversation 80这一组\"},{\"segId\":\"450\",\"val\":\"poll-1212\\n有三个人,rainbow H T_T\"}]}","configId": "2392","new_tags_id": [ "new_tag2" ] } ]

然后赋值,调用

PHP;"> $tag_id = 264; $menuData = json_decode($data,true);//这里第二个参数用true就会转化为数组了 self::dealMenuTagDelete($menuData,$tag_id); print_r($menuData);

以上所述是小编给大家介绍的PHP递归删除多维数组中的某个值,希望对大家有所帮助。程序员遇到问题都会上(编程之家jb51.cc)查找问题解答方法!如果觉得站点还不错,随手转发给程序员朋友一下!

猜你在找的PHP相关文章