> For the complete documentation index, see [llms.txt](https://phper.shujuwajue.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://phper.shujuwajue.com/biao-zhun-php-ku-ff08-spl.md).

# 标准PHP库（SPL）

SPL是php标准库，将一些比较实用的函数、类和接口以库的形式放在php内核