摘要： 通过一下代码，总结php文件函数// current directoryecho getcwd() . "\n";chdir('hhh');// current directoryecho getcwd() . "\n";D:\xampp\htdocs\my\function D:\xampp\htdocs\my\function\hhh$dir = 'D:\xampp\htdocs\my\function';// Open a known directory, read directory into variable a 阅读全文