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php文件夹操作

Jun 06, 2016 pm 07:55 PM
basename php string operate folder

string basename ( string path [, string suffix] ) 给出一个包含有指向一个文件的全路径的字符串,本函数返回基本的文件名。如果文件名是以 suffix 结束的,那这一部分也会被去掉。 在 Windows 中,斜线(/)和反斜线(\)都可以用作目录分隔符。在其它环

string basename ( string path [, string suffix] )

给出一个包含有指向一个文件的全路径的字符串,本函数返回基本的文件名。如果文件名是以 suffix 结束的,那这一部分也会被去掉。

在 Windows 中,斜线(/)和反斜线(\)都可以用作目录分隔符。在其它环境下是斜线(/)。

 

string dirname ( string path )

 

给出一个包含有指向一个文件的全路径的字符串,本函数返回去掉文件名后的目录名。

在 Windows 中,斜线(/)和反斜线(\)都可以用作目录分隔符。在其它环境下是斜线(/)。

 

array pathinfo ( string path [, int options] )

 

pathinfo() 返回一个联合数组包含有 path 的信息。包括以下的数组单元:dirname,basename 和 extension。

可以通过参数 options 指定要返回哪些单元。它们包括:PATHINFO_DIRNAME,PATHINFO_BASENAME 和 PATHINFO_EXTENSION。默认是返回全部的单元。

 

string realpath ( string path )

 

realpath() 扩展所有的符号连接并且处理输入的 path 中的 ‘/./’, ‘/../’ 以及多余的 ‘/’ 并返回规范化后的绝对路径名。返回的路径中没有符号连接,’/./’ 或 ‘/../’ 成分。

realpath() 失败时返回 FALSE,比如说文件不存在的话。在 BSD 系统上,如果仅仅是 path 不存在的话,PHP 并不会像其它系统那样返回 FALSE。

 

文章摘自 php文件夹操作

 


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