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streamWrapper::__construct> <Example class registered as stream wrapper
Last updated: Fri, 20 Nov 2009

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The streamWrapper class

Introduction

Allows you to implement your own protocol handlers and streams for use with all the other filesystem functions (such as fopen(), fread() etc.).

Note: This is NOT a real class, only a prototype of how a class defining its own protocol should be.

Note: Implementing the methods in other ways then described here can lead to undefined behaviour.

An instance of this class is initialized as soon as a stream function tries to access the protocol it is associated with.

Class synopsis

streamWrapper
streamWrapper {
/* Properties */
public resource $context ;
/* Methods */
__construct ( void )
public bool dir_closedir ( void )
public bool dir_opendir ( string $path , int $options )
public string dir_readdir ( void )
public bool dir_rewinddir ( void )
public bool mkdir ( string $path , int $mode , int $options )
public bool rename ( string $path_from , string $path_to )
public bool rmdir ( string $path , int $options )
public resource stream_cast ( int $cast_as )
public void stream_close ( void )
public bool stream_eof ( void )
public bool stream_flush ( void )
public bool stream_lock ( mode $operation )
public bool stream_open ( string $path , string $mode , int $options , string &$opened_path )
public string stream_read ( int $count )
public bool stream_seek ( int $offset , int $whence = SEEK_SET )
public bool stream_set_option ( int $option , int $arg1 , int $arg2 )
public array stream_stat ( void )
public int stream_tell ( void )
public int stream_write ( string $data )
public bool unlink ( string $path )
public array url_stat ( string $path , int $flags )
}

Properties

resource context

The current context, or NULL if no context was passed to the caller function.

Use the stream_context_get_options() to parse the context.

Note: This property must be public so PHP can populate it with the actual context resource.

Changelog

Version Description
5.0.0 Added the context property.

See Also

Table of Contents



add a note add a note User Contributed Notes
streamWrapper
yannick dot battail at gmail dot com
17-Jul-2009 09:38
a php interface for wrapper

<?php
interface WrapperInterface
{
    /**
     * resource context
     *
     * @var resource
     */
    //public $context;

    /**
     * constructor
     *
     */
    public function __construct();

    /**
     *
     *
     * @return bool
     */
    public function dir_closedir();

    /**
     * Enter description here...
     *
     * @param string $path
     * @param int $options
     * @return bool
     */
    public function dir_opendir($path , $options);

    /**
     * Enter description here...
     *
     * @return string
     */
    public function dir_readdir();

    /**
     * Enter description here...
     *
     * @return bool
     */
    public function dir_rewinddir();

    /**
     * Enter description here...
     *
     * @param string $path
     * @param int $mode
     * @param int $options
     * @return bool
     */
    public function mkdir($path , $mode , $options);

    /**
     * Enter description here...
     *
     * @param string $path_from
     * @param string $path_to
     * @return bool
     */
    public function rename($path_from , $path_to);

    /**
     * Enter description here...
     *
     * @param string $path
     * @param int $options
     * @return bool
     */
    public function rmdir($path , $options);

    /**
     * Enter description here...
     *
     * @param int $cast_as
     * @return resource
     */
    public function stream_cast($cast_as);

    /**
     * Enter description here...
     *
     */
    public function stream_close();

    /**
     * Enter description here...
     *
     * @return bool
     */
    public function stream_eof();

    /**
     * Enter description here...
     *
     * @return bool
     */
    public function stream_flush();

    /**
     * Enter description here...
     *
     * @param mode $operation
     * @return bool
     */
    public function stream_lock($operation);

    /**
     * Enter description here...
     *
     * @param string $path
     * @param string $mode
     * @param int $options
     * @param string &$opened_path
     * @return bool
     */
    public function stream_open($path , $mode , $options , &$opened_path);

    /**
     * Enter description here...
     *
     * @param int $count
     * @return string
     */
    public function stream_read($count);

    /**
     * Enter description here...
     *
     * @param int $offset
     * @param int $whence = SEEK_SET
     * @return bool
     */
    public function stream_seek($offset , $whence = SEEK_SET);

    /**
     * Enter description here...
     *
     * @param int $option
     * @param int $arg1
     * @param int $arg2
     * @return bool
     */
    public function stream_set_option($option , $arg1 , $arg2);

    /**
     * Enter description here...
     *
     * @return array
     */
    public function stream_stat();

    /**
     * Enter description here...
     *
     * @return int
     */
    public function stream_tell();

    /**
     * Enter description here...
     *
     * @param string $data
     * @return int
     */
    public function stream_write($data);

    /**
     * Enter description here...
     *
     * @param string $path
     * @return bool
     */
    public function unlink($path);

    /**
     * Enter description here...
     *
     * @param string $path
     * @param int $flags
     * @return array
     */
    public function url_stat($path , $flags);
}

?>
add a note add a note

streamWrapper::__construct> <Example class registered as stream wrapper
Last updated: Fri, 20 Nov 2009
 
 
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