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Appendix L. List of Supported Protocols/Wrappers

Table of Contents
Filesystem
HTTP and HTTPS
FTP and FTPS
PHP input/output streams
Compression Streams
Secure Shell 2
Audio Streams

The following is a list of the various URL style protocols that PHP has built-in for use with the filesystem functions such as fopen() and copy(). In addition to these wrappers, as of PHP 4.3.0, you can write your own wrappers using PHP script and stream_wrapper_register().

Filesystem

All versions of PHP. Explicitly using file:// since PHP 4.3.0

  • /path/to/file.ext

  • relative/path/to/file.ext

  • fileInCwd.ext

  • C:/path/to/winfile.ext

  • C:\path\to\winfile.ext

  • \\smbserver\share\path\to\winfile.ext

  • file:///path/to/file.ext

file:// is the default wrapper used with PHP and represents the local filesystem. When a relative path is specified (a path which does not begin with /, \, \\, or a windows drive letter) the path provided will be applied against the current working directory. In many cases this is the directory in which the script resides unless it has been changed. Using the CLI sapi, this defaults to the directory from which the script was called.

With some functions, such as fopen() and file_get_contents(), include_path may be optionally searched for relative paths as well.

Table L-1. Wrapper Summary

AttributeSupported
Restricted by allow_url_fopen.No
Allows ReadingYes
Allows WritingYes
Allows AppendingYes
Allows Simultaneous Reading and WritingYes
Supports stat()Yes
Supports unlink()Yes
Supports rename()Yes
Supports mkdir()Yes
Supports rmdir()Yes

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Copyright © 1997 - 2007 by the PHP Documentation Group. This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later. A copy of the Open Publication License is distributed with this manual, the latest version is presently available at http://www.opencontent.org/openpub/. Please see full copyright text at http://www.php.net/manual/en/copyright.php Original version of the above documentation is available at http://www.php.net/manual/en/



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