摘要： 首先我们来看php官方手册中对include的文件搜索原则的描述：Files for including are first looked for in each include_path entry relative to the current working directory, and then in the directory of current script. E.g. if your include_path islibraries, current working directory is/www/, you includedinclude/a.phpand there is 阅读全文