如何在PHP中获取foreach中的重复变量 [英] How to get repetitious variable in foreach at PHP

问题描述

我想在php中获取foreach中的重复变量：



我尝试过：

I want to get out Repetitious variables in foreach at php :

What I have tried:

foreach ($article->tags as $tags) {
            foreach ($tags->articles as $related_article) {
                echo $related_article->id . '||';
            }
        }

此代码告诉我：

298 || 301 || 303 || 303 | |

，你可以看到它有303和303.

我只想要其中一个或者没有一个。

This code give me this :
298||301||303||303||
and you can see , it`s have 303 and 303 .
I just want one of them or none of them.

推荐答案

article->标签 as

article->tags as

标签）{
foreach （

tags-> articles as

tags->articles as

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