字符串比较不起作用 [英] String compare not working

问题描述

我正在尝试比较 wordpress 中的帖子标题，以避免创建标题已存在的帖子.

I am trying to compare post titles in wordpress to avoid creating a post with a title that already exists.

foreach ($postnamearray as $value) 
{
    if($value === $titelzor)
    {
        echo' '.$value.' === '.$titelzor.' ';
    }
    else
    {
        echo' '.$value.' != '.$titelzor.' <br /> ';
    }
}

但是，它不起作用！当应该找到匹配项时，它会返回(对不起荷兰语文本):

However, it's not working! When a match is supposed to be found, it comes back as (sorry for dutch text):

zovty, bedankt! != zovty, bedankt!

但它应该返回

zovty, bedankt! === zovty, bedankt!

因此脚本似乎没有将其检测为已找到匹配项.我做错了什么?

So the script doesn't seem to detect it as having found a match. What did I do wrong?

推荐答案

我猜其中一个字符串可能包含尾随空格或换行符，所以试试这个:

I guess one of the strings may contain trailing whitespace or newline characters, so try this:

if (trim($value) == trim($titelzor)) ...

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