列出标签 wordpress 时删除最后一个逗号 [英] Remove last comma when listing tags wordpress

问题描述

我有以下脚本来列出没有链接的帖子的标签，但它在所有标签(包括最后一个)之后放置了一个逗号.有什么办法可以防止脚本向列表中的最后一个标签添加逗号吗?我试着研究它，但关于这个特定的 wp 字符串真的没有很多.

I have the following script to list a post's tags without links, but it puts a comma after all of the tags including the last one. Is there any way to prevent the script from adding a comma to the last tag in the list? I tried researching it, but there really isn't a whole lot out there about this particular wp string.

<?php
    $posttags = get_the_tags();
    if ($posttags) {
        foreach($posttags as $tag) {
            echo $tag->name . ', '; 
        }
    }
?> 

推荐答案

使用 rtrim.它将修剪最后一个指定的字符.

Use rtrim. It will trim the last specified character.

    $posttags = get_the_tags();
    if ($posttags) {
       $taglist = "";
       foreach($posttags as $tag) {
           $taglist .=  $tag->name . ', '; 
       }
      echo rtrim($taglist, ", ");
   }

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