Where is the source code for built-in php function

问题:

I have a local server installed on my Mac (MAMP). Where I can find the PHP functions in my computer?

What is the path to the functions folder? For instance, rand(), time(), isset(), explode().

I would like to see the code to learn from it.

回答1:

You can download the PHP source from this page: http://php.net/downloads.php Download and extract the archives. The standard functions are located under ext/standard.

Or simply browse them on github: https://github.com/php/php-src/tree/master/ext/standard