Question

我想知道＆＃34;对于（x in y）＆＃34; PHP中的JavaScript？我从其他网站上看到过这个代码与我程序的功能相同，但是我想把它转换成php。

喜欢这个javascript代码：

function get_tat_friends(){
    var ar_friends = []; ar_fr_info = [];
    FB.api('me/photos?type=uploaded&fields=likes,comments',function(data){
        obj = data['data'];
        for(x in obj){
          if(obj[x]['likes'] != null){
            obj_like = obj[x]['likes']['data'];
            for(y in obj_like){
              if(ar_friends[obj_like[y]['id']] == null){
                ar_friends[obj_like[y]['id']] = 1;
                ar_fr_info[obj_like[y]['id']] = obj_like[y]['name'];
              }else{
                ar_friends[obj_like[y]['id']] += 1;
                ar_fr_info[obj_like[y]['id']] = obj_like[y]['name'];
              }
            }
          }
          if(obj[x]['comments'] != null){
            obj_like = obj[x]['comments']['data'];
            for(y in obj_like){
              if(ar_friends[obj_like[y]['from']['id']] == null){
                ar_friends[obj_like[y]['from']['id']] = 1;
                ar_fr_info[obj_like[y]['from']['id']] = obj_like[y]['from']['name'];
              }else{
                ar_friends[obj_like[y]['from']['id']] += 2;
                ar_fr_info[obj_like[y]['from']['id']] = obj_like[y]['from']['name'];
              } 
            }
          }
        }
        ar_friends = getSortedKeys(ar_friends);
        //delete user_id
          var index = ar_friends.indexOf(user_id);
          if (index >= 0) {
            ar_friends.splice( index, 1 );
          }

        //call done function
        done_load_friends(ar_friends,ar_fr_info);
    })
}

我已经尝试过这样做，但它不起作用：

obj = data['data'];
for($x in obj){
}

Answer 1

查看PHP文档 foreach 循环：

.sharedaddy ul li {
background: none;
}

Answer 2

对于关联数组，它是

foreach($array as $key => $value) {
    ...
}

如果你有一个对象，你可以用get_object_vars得到一个公共属性的关联数组，所以你可以这样写：

foreach (get_object_vars($obj) as $key => $value) {
    ...
}

PHP相当于Javascript＆＃34; for（x in y）＆＃34;

2 个答案: