Référence de la classe Stream

Graphe d'héritage de Stream:

Fonctions membres publiques
	__construct ($writeprefix='', $readprefix='', $context=array())
	__destruct ()
	open ($filename, $mode='r', $useIncludePath=false, $context=null, $usePrefix=false, $relative=false, $detectProcessingMode=false)
	close ()
	eof ()
	filesize ()
	gets ($length=0)
	read ($length=0)
	seek ($offset, $whence=SEEK_SET)
	tell ()
	write (&$string, $length=0, $chunk=0)
	chmod ($filename='', $mode=0)
	get_meta_data ()
	_buildContext ()
	setContextOptions ($context)
	addContextEntry ($wrapper, $name, $value)
	deleteContextEntry ($wrapper, $name)
	applyContextToStream ()
	appendFilter ($filterName, $readWrite=STREAM_FILTER_READ, $params=array())
	prependFilter ($filterName, $readWrite=STREAM_FILTER_READ, $params=array())
	removeFilter (&$resource, $byindex=false)
	copy ($src, $dest, $context=null, $usePrefix=true, $relative=false)
	move ($src, $dest, $context=null, $usePrefix=true, $relative=false)
	delete ($filename, $context=null, $usePrefix=true, $relative=false)
	upload ($src, $dest, $context=null, $usePrefix=true, $relative=false)
	writeFile ($filename, &$buffer)
	_getFilename ($filename, $mode, $usePrefix, $relative)
	getFileHandle ()
Fonctions membres publiques hérités de CMSObject
	__construct ($properties=null)
	__toString ()
	def ($property, $default=null)
	get ($property, $default=null)
	getProperties ($public=true)
	getError ($i=null, $toString=true)
	getErrors ()
	set ($property, $value=null)
	setProperties ($properties)
	setError ($error)

Attributs protégés
	$filemode = 0644
	$dirmode = 0755
	$chunksize = 8192
	$filename
	$writeprefix
	$readprefix
	$processingmethod = 'f'
	$filters = array()
	$fh
	$filesize
	$context = null
	$contextOptions
	$openmode
Attributs protégés hérités de CMSObject
	$_errors = array()

Description détaillée

Joomla! Stream Interface

The Joomla! stream interface is designed to handle files as streams where as the legacy File static class treated files in a rather atomic manner.

Note

This class adheres to the stream wrapper operations: https://www.php.net/manual/en/intro.stream.php PHP Stream Manual https://www.php.net/manual/en/wrappers.php Stream Wrappers https://www.php.net/manual/en/filters.php Stream Filters https://www.php.net/manual/en/transports.php Socket Transports (used by some options, particularly HTTP proxy) 1.7.0

Documentation des constructeurs et destructeur

__construct()

__construct	(		$writeprefix = '',
			$readprefix = '',
			$context = array()
	)

Constructor

Paramètres

string	$writeprefix	Prefix of the stream (optional). Unlike the JPATH_*, this has a final path separator!
string	$readprefix	The read prefix (optional).
array	$context	The context options (optional).

Depuis

1.7.0

Références $context.

__destruct()

__destruct

(

)

Destructor

Depuis

1.7.0

Documentation des fonctions membres

_buildContext()

_buildContext

(

)

Stream contexts Builds the context from the array

Renvoie

mixed

Depuis

1.7.0

Références null.

_getFilename()

_getFilename	(		$filename,
			$mode,
			$usePrefix,
			$relative
	)

Determine the appropriate 'filename' of a file

Paramètres

string	$filename	Original filename of the file
string	$mode	Mode string to retrieve the filename
boolean	$usePrefix	Controls the use of a prefix
boolean	$relative	Determines if the filename given is relative. Relative paths do not have JPATH_ROOT stripped.

Renvoie

string

Depuis

1.7.0

Références $mode, FilesystemHelper\getWriteModes(), et JPATH_ROOT.

addContextEntry()

addContextEntry	(		$wrapper,
			$name,
			$value
	)

Adds a particular options to the context

Paramètres

string	$wrapper	The wrapper to use
string	$name	The option to set
string	$value	The value of the option

Renvoie

void

Stream Context Creation https://www.php.net/manual/en/context.php Context Options for various streams 1.7.0

Références $name, et $value.

appendFilter()

appendFilter	(		$filterName,
			$readWrite = STREAM_FILTER_READ,
			$params = array()
	)

Stream filters Append a filter to the chain

Paramètres

string	$filterName	The key name of the filter.
integer	$readWrite	Optional. Defaults to STREAM_FILTER_READ.
array	$params	An array of params for the stream_filter_append call.

Renvoie

mixed

1.7.0

Références $params.

applyContextToStream()

applyContextToStream

(

)

Applies the current context to the stream

Use this to change the values of the context after you've opened a stream

Renvoie

mixed

Depuis

1.7.0

chmod()

chmod	(		$filename = '',
			$mode = 0
	)

Chmod wrapper

Paramètres

string	$filename	File name.
mixed	$mode	Mode to use.

Renvoie

boolean

Depuis

1.7.0

Références $mode, Text\_(), et FilesystemHelper\ftpChmod().

close()

close

(

)

Attempt to close a file handle

Will return false if it failed and true on success If the file is not open the system will return true, this function destroys the file handle as well

Renvoie

boolean

Depuis

1.7.0

Références Text\_(), et null.

copy()

copy	(		$src,
			$dest,
			$context = null,
			$usePrefix = true,
			$relative = false
	)

Copy a file from src to dest

Paramètres

string	$src	The file path to copy from.
string	$dest	The file path to copy to.
resource	$context	A valid context resource (optional) created with stream_context_create.
boolean	$usePrefix	Controls the use of a prefix (optional).
boolean	$relative	Determines if the filename given is relative. Relative paths do not have JPATH_ROOT stripped.

Renvoie

mixed

Depuis

1.7.0

Références $context, et elseif.

delete()

delete	(		$filename,
			$context = null,
			$usePrefix = true,
			$relative = false
	)

Delete a file

Paramètres

string	$filename	The file path to delete.
resource	$context	A valid context resource (optional) created with stream_context_create.
boolean	$usePrefix	Controls the use of a prefix (optional).
boolean	$relative	Determines if the filename given is relative. Relative paths do not have JPATH_ROOT stripped.

Renvoie

mixed

Depuis

1.7.0

Références $context, et elseif.

deleteContextEntry()

deleteContextEntry	(		$wrapper,
			$name
	)

Deletes a particular setting from a context

Paramètres

string	$wrapper	The wrapper to use
string	$name	The option to unset

Renvoie

void

1.7.0

Références $name.

eof()

eof

(

)

Work out if we're at the end of the file for a stream

Renvoie

boolean

Depuis

1.7.0

Références Text\_().

filesize()

filesize

(

)

Retrieve the file size of the path

Renvoie

mixed

Depuis

1.7.0

Références Text\_(), et FilesystemHelper\remotefsize().

get_meta_data()

get_meta_data

(

)

Get the stream metadata

Renvoie

array header/metadata

1.7.0

Références Text\_().

getFileHandle()

getFileHandle

(

)

Return the internal file handle

Renvoie

resource File handler

Depuis

1.7.0

gets()

gets

(

$length = 0

)

Get a line from the stream source.

Paramètres

integer

$length

The number of bytes (optional) to read.

Renvoie

mixed

Depuis

1.7.0

Références Text\_().

move()

move	(		$src,
			$dest,
			$context = null,
			$usePrefix = true,
			$relative = false
	)

Moves a file

Paramètres

string	$src	The file path to move from.
string	$dest	The file path to move to.
resource	$context	A valid context resource (optional) created with stream_context_create.
boolean	$usePrefix	Controls the use of a prefix (optional).
boolean	$relative	Determines if the filename given is relative. Relative paths do not have JPATH_ROOT stripped.

Renvoie

mixed

Depuis

1.7.0

Références $context, et elseif.

open()

open	(		$filename,
			$mode = 'r',
			$useIncludePath = false,
			$context = null,
			$usePrefix = false,
			$relative = false,
			$detectProcessingMode = false
	)

Generic File Operations

Open a stream with some lazy loading smarts

Paramètres

string	$filename	Filename
string	$mode	Mode string to use
boolean	$useIncludePath	Use the PHP include path
resource	$context	Context to use when opening
boolean	$usePrefix	Use a prefix to open the file
boolean	$relative	Filename is a relative path (if false, strips JPATH_ROOT to make it relative)
boolean	$detectProcessingMode	Detect the processing method for the file and use the appropriate function to handle output automatically

Renvoie

boolean

Depuis

1.7.0

Références $context, $mode, $url, Text\_(), elseif, File\getExt(), et FilesystemHelper\isJoomlaStream().

prependFilter()

prependFilter	(		$filterName,
			$readWrite = STREAM_FILTER_READ,
			$params = array()
	)

Prepend a filter to the chain

Paramètres

string	$filterName	The key name of the filter.
integer	$readWrite	Optional. Defaults to STREAM_FILTER_READ.
array	$params	An array of params for the stream_filter_prepend call.

Renvoie

mixed

1.7.0

Références $filters, et $params.

read()

read

(

$length = 0

)

Read a file

Handles user space streams appropriately otherwise any read will return 8192

Paramètres

integer

$length

Length of data to read

Renvoie

mixed

1.7.0

Références $filesize, et Text\_().

removeFilter()

removeFilter	(	&	$resource,
			$byindex = false
	)

Remove a filter, either by resource (handed out from the append or prepend function) or via getting the filter list)

Paramètres

resource	&$resource	The resource.
boolean	$byindex	The index of the filter.

Renvoie

boolean Result of operation

Depuis

1.7.0

seek()

seek	(		$offset,
			$whence = SEEK_SET
	)

Seek the file

Note: the return value is different to that of fseek

Paramètres

integer	$offset	Offset to use when seeking.
integer	$whence	Seek mode to use.

Renvoie

boolean True on success, false on failure

1.7.0

Références $offset, et Text\_().

setContextOptions()

setContextOptions

(

$context

)

Updates the context to the array

Format is the same as the options for stream_context_create

Paramètres

array

$context

Options to create the context with

Renvoie

void

1.7.0

Références $context.

tell()

tell

(

)

Returns the current position of the file read/write pointer.

Renvoie

mixed

Depuis

1.7.0

Références Text\_().

upload()

upload	(		$src,
			$dest,
			$context = null,
			$usePrefix = true,
			$relative = false
	)

Upload a file

Paramètres

string	$src	The file path to copy from (usually a temp folder).
string	$dest	The file path to copy to.
resource	$context	A valid context resource (optional) created with stream_context_create.
boolean	$usePrefix	Controls the use of a prefix (optional).
boolean	$relative	Determines if the filename given is relative. Relative paths do not have JPATH_ROOT stripped.

Renvoie

mixed

Depuis

1.7.0

Références $context, et Text\_().

write()

write	(	&	$string,
			$length = 0,
			$chunk = 0
	)

File write

Whilst this function accepts a reference, the underlying fwrite will do a copy! This will roughly double the memory allocation for any write you do. Specifying chunked will get around this by only writing in specific chunk sizes. This defaults to 8192 which is a sane number to use most of the time (change the default with JStream::set('chunksize', newsize);) Note: This doesn't support gzip/bzip2 writing like reading does

Paramètres

string	&$string	Reference to the string to write.
integer	$length	Length of the string to write.
integer	$chunk	Size of chunks to write in.

Renvoie

boolean

1.7.0

Références $start, Text\_(), et elseif.

writeFile()

writeFile	(		$filename,
		&	$buffer
	)

Writes a chunk of data to a file.

Paramètres

string	$filename	The file name.
string	&$buffer	The data to write to the file.

Renvoie

boolean

Depuis

1.7.0

Références $buffer.

Documentation des champs

$chunksize

$chunksize = 8192

protected

$context

$context = null

protected

$contextOptions

$contextOptions

protected

$dirmode

$dirmode = 0755

protected

$fh

$fh

protected

$filemode

$filemode = 0644

protected

$filename

$filename

protected

$filesize

$filesize

protected

$filters

$filters = array()

protected

$openmode

$openmode

protected

$processingmethod

$processingmethod = 'f'

protected

$readprefix

$readprefix

protected

$writeprefix

$writeprefix

protected

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La documentation de cette classe a été générée à partir du fichier suivant :

• src/Filesystem/Stream.php