str_replace:仅匹配整个单词 [英] str_replace: Match whole word only

问题描述

由于 str_replace() 在 ":Name :Name_en" 中匹配 ":Name" 两次，所以我只想匹配整个单词的结果.我想切换到 preg_replace() 因为这个答案.

Since str_replace() matches ":Name" two times in ":Name :Name_en" I want to match the results for the whole word only. I wanted to switch to preg_replace() because of this answer.

$str = ":Name :Name_en";
echo $str . chr(10);
$str = preg_replace('/\b' . ':Name' . '\b/i', '"Test"', $str);
echo $str;

但是由于冒号，这不起作用.不进行更换.RegExp 会是什么样子?

But this doesn't work because of the colon. No replacement takes place. How would the RegExp will look like?

\b 是单词边界.但我认为冒号不属于这样的词边界.

\b is the word boundary. But I think a colon doesn't belong to such a word boundary.

推荐答案

您不需要字符串开头的单词边界:

You don't need the word boundary on the start of your string:

$str = preg_replace('/:Name\b/i', '"Test"', $str);

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