PHPDirectory function detail_php tutorial

PHPDirectory function details. Predefined constant: DIRECTORY_SEPARATOR (string): directory separator PATH_SEPARATOR (string): path separator boolchdir (string $ directory)-Change the directory copy code as follows:

DIRECTORY_SEPARATOR (string): directory separator

PATH_SEPARATOR (string): path separator

Bool chdir (string $ directory)-Change directory

The code is as follows:

Echo getcwd (). "\ n ";
Chdir ('public _ html ');
Echo getcwd (). "\ n ";

Bool chroot (string $ directory)-change the root directory only when the system supports and runs on CLI, CGI, or SAPI version.

Dir: dir (string $ directory)-directory class. There are three methods available: read, rewind (pointing the position pointer inside the file to the beginning of a data stream again) and close

The code is as follows:

$ D = dir ("E:/work/html ");
Foreach ($ d as $ k => $ v ){
Echo $ k. '->'. $ v .'
';
}
While (false! ==( $ Entry = $ d-> read ())){
Echo $ entry ."
";
}
$ D-> close ();

Void closedir (resource $ dir_handle)-close directory handle

The code is as follows:

$ Dir = "/etc/php5 /";

If (is_dir ($ dir )){
If ($ dh = opendir ($ dir )){
$ Directory = readdir ($ dh );
Closedir ($ dh );
}
}

String getcwd (void)-get the current working directory

Resource opendir (string $ path [, resource $ context])-open the directory handle

String readdir (resource $ dir_handle)-read entries from the directory handle

The code is as follows:

If ($ handle = opendir ('/path/to/Files ')){
Echo "Directory handle: $ handle \ n ";
Echo "Files: \ n ";
While (false! ==( $ File = readdir ($ handle ))){
Echo "$ file \ n ";
}
Closedir ($ handle );
}

Void rewinddir (resource $ dir_handle)-reset the directory stream specified by dir_handle to the beginning of the Directory

Array scandir (string $ directory [, int $ sorting_order [, resource $ context])-List files and directories in a specified path

The code is as follows:

$ Dir = '/tmp ';
$ Files1 = scandir ($ dir );
$ Files2 = scandir ($ dir, 1 );
Print_r ($ files1 );
Print_r ($ files2 );

Export DIRECTORY_SEPARATOR (string): directory separator PATH_SEPARATOR (string): path separator bool chdir (string $ directory)-Change the directory code as follows...