Open Journal Systems  3.3.0
GuzzleHttp\Psr7\FnStream Class Reference
Inheritance diagram for GuzzleHttp\Psr7\FnStream:
Psr\Http\Message\StreamInterface

Public Member Functions

 __construct (array $methods)
 
 __destruct ()
 
 __get ($name)
 
 __toString ()
 
 __wakeup ()
 
 close ()
 
 detach ()
 
 eof ()
 
 getContents ()
 
 getMetadata ($key=null)
 
 getSize ()
 
 isReadable ()
 
 isSeekable ()
 
 isWritable ()
 
 read ($length)
 
 rewind ()
 
 seek ($offset, $whence=SEEK_SET)
 
 tell ()
 
 write ($string)
 

Static Public Member Functions

static decorate (StreamInterface $stream, array $methods)
 

Detailed Description

Compose stream implementations based on a hash of functions.

Allows for easy testing and extension of a provided stream without needing to create a concrete class for a simple extension point.

Definition at line 12 of file FnStream.php.

Constructor & Destructor Documentation

◆ __construct()

GuzzleHttp\Psr7\FnStream::__construct ( array  $methods)
Parameters
array$methodsHash of method name to a callable.

Definition at line 28 of file FnStream.php.

◆ __destruct()

GuzzleHttp\Psr7\FnStream::__destruct ( )

The close method is called on the underlying stream only if possible.

Definition at line 51 of file FnStream.php.

Member Function Documentation

◆ __get()

GuzzleHttp\Psr7\FnStream::__get (   $name)

Lazily determine which methods are not implemented.

Exceptions

Definition at line 42 of file FnStream.php.

◆ __toString()

GuzzleHttp\Psr7\FnStream::__toString ( )

Reads all data from the stream into a string, from the beginning to end.

This method MUST attempt to seek to the beginning of the stream before reading data and read the stream until the end is reached.

Warning: This could attempt to load a large amount of data into memory.

This method MUST NOT raise an exception in order to conform with PHP's string casting operations.

See also
http://php.net/manual/en/language.oop5.magic.php#object.tostring
Returns
string

Implements Psr\Http\Message\StreamInterface.

Definition at line 87 of file FnStream.php.

◆ __wakeup()

GuzzleHttp\Psr7\FnStream::__wakeup ( )

An unserialize would allow the __destruct to run when the unserialized value goes out of scope.

Exceptions

Definition at line 62 of file FnStream.php.

◆ close()

GuzzleHttp\Psr7\FnStream::close ( )

Closes the stream and any underlying resources.

Returns
void

Implements Psr\Http\Message\StreamInterface.

Definition at line 92 of file FnStream.php.

◆ decorate()

static GuzzleHttp\Psr7\FnStream::decorate ( StreamInterface  $stream,
array  $methods 
)
static

Adds custom functionality to an underlying stream by intercepting specific method calls.

Parameters
StreamInterface$streamStream to decorate
array$methodsHash of method name to a closure
Returns
FnStream

Definition at line 76 of file FnStream.php.

◆ detach()

GuzzleHttp\Psr7\FnStream::detach ( )

Separates any underlying resources from the stream.

After the stream has been detached, the stream is in an unusable state.

Returns
resource|null Underlying PHP stream, if any

Implements Psr\Http\Message\StreamInterface.

Definition at line 97 of file FnStream.php.

◆ eof()

GuzzleHttp\Psr7\FnStream::eof ( )

Returns true if the stream is at the end of the stream.

Returns
bool

Implements Psr\Http\Message\StreamInterface.

Definition at line 112 of file FnStream.php.

◆ getContents()

GuzzleHttp\Psr7\FnStream::getContents ( )

Returns the remaining contents in a string

Returns
string
Exceptions

Implements Psr\Http\Message\StreamInterface.

Definition at line 152 of file FnStream.php.

◆ getMetadata()

GuzzleHttp\Psr7\FnStream::getMetadata (   $key = null)

Get stream metadata as an associative array or retrieve a specific key.

The keys returned are identical to the keys returned from PHP's stream_get_meta_data() function.

string $key Specific metadata to retrieve. array|mixed|null Returns an associative array if no key is provided. Returns a specific key value if a key is provided and the value is found, or null if the key is not found.

Implements Psr\Http\Message\StreamInterface.

Definition at line 157 of file FnStream.php.

◆ getSize()

GuzzleHttp\Psr7\FnStream::getSize ( )

Get the size of the stream if known.

Returns
int|null Returns the size in bytes if known, or null if unknown.

Implements Psr\Http\Message\StreamInterface.

Definition at line 102 of file FnStream.php.

◆ isReadable()

GuzzleHttp\Psr7\FnStream::isReadable ( )

Returns whether or not the stream is readable.

Returns
bool

Implements Psr\Http\Message\StreamInterface.

Definition at line 142 of file FnStream.php.

◆ isSeekable()

GuzzleHttp\Psr7\FnStream::isSeekable ( )

Returns whether or not the stream is seekable.

Returns
bool

Implements Psr\Http\Message\StreamInterface.

Definition at line 117 of file FnStream.php.

◆ isWritable()

GuzzleHttp\Psr7\FnStream::isWritable ( )

Returns whether or not the stream is writable.

Returns
bool

Implements Psr\Http\Message\StreamInterface.

Definition at line 132 of file FnStream.php.

◆ read()

GuzzleHttp\Psr7\FnStream::read (   $length)

Read data from the stream.

Parameters
int$lengthRead up to $length bytes from the object and return them. Fewer than $length bytes may be returned if underlying stream call returns fewer bytes.
Returns
string Returns the data read from the stream, or an empty string if no bytes are available.
Exceptions

Implements Psr\Http\Message\StreamInterface.

Definition at line 147 of file FnStream.php.

◆ rewind()

GuzzleHttp\Psr7\FnStream::rewind ( )

Seek to the beginning of the stream.

If the stream is not seekable, this method will raise an exception; otherwise, it will perform a seek(0).

See also
seek() on failure.

Implements Psr\Http\Message\StreamInterface.

Definition at line 122 of file FnStream.php.

◆ seek()

◆ tell()

GuzzleHttp\Psr7\FnStream::tell ( )

Returns the current position of the file read/write pointer

Returns
int Position of the file pointer
Exceptions

Implements Psr\Http\Message\StreamInterface.

Definition at line 107 of file FnStream.php.

◆ write()

GuzzleHttp\Psr7\FnStream::write (   $string)

Write data to the stream.

Parameters
string$stringThe string that is to be written.
Returns
int Returns the number of bytes written to the stream.
Exceptions

Implements Psr\Http\Message\StreamInterface.

Definition at line 137 of file FnStream.php.


The documentation for this class was generated from the following file: