使用php preg_match（正则表达式）将camelCase单词拆分为单词

您还可以

preg_match_all

preg_match_all('/((?:^|[A-Z])[a-z]+)/',$str,$matches);

说明：

(        - Start of capturing parenthesis. (?:     - Start of non-capturing parenthesis.  ^      - Start anchor.  |      - Alternation.  [A-Z]  - Any one capital letter. )       - End of non-capturing parenthesis. [a-z]+  - one ore more lowercase letter.)        - End of capturing parenthesis.