用大写字母拆分单词 [英] Split word by capital letter

问题描述

我想用PHP用大写字母分隔单词

I want to split a word by capital letter in PHP

例如:

$string = "facebookPageUrl";

我想要这样:

$array = array("facebook", "Page", "Url");

我应该怎么做?我想要最短，最有效的方法.

How should I do it? I want the shortest and most efficient way.

推荐答案

您可以将 preg_split 与前瞻性断言:

preg_split('/(?=\p{Lu})/u', $str)

此处\p{Lu}是所有Unicode大写字母的字符类.如果仅使用US-ASCII字符，则也可以使用[A-Z].

Here \p{Lu} is a character class of all Unicode uppercase letters. If you just work with US-ASCII characters, you could also use [A-Z] instead.

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