Stream
in package
implements
StreamInterface
PHP stream implementation.
Interfaces, Classes, Traits and Enums
- StreamInterface
- Describes a data stream.
Table of Contents
- READABLE_MODES = '/r|a\\+|ab\\+|w\\+|wb\\+|x\\+|xb\\+|c\\+|cb\\+/'
- WRITABLE_MODES = '/a|w|r\\+|rb\\+|rw|x|c/'
- $customMetadata : array<string|int, mixed>
- $readable : bool
- $seekable : bool
- $size : int|null
- $stream : resource
- $uri : string|null
- $writable : bool
- __construct() : mixed
- This constructor accepts an associative array of options.
- __destruct() : mixed
- Closes the stream when the destructed
- __toString() : string
- Reads all data from the stream into a string, from the beginning to end.
- close() : void
- Closes the stream and any underlying resources.
- detach() : resource|null
- Separates any underlying resources from the stream.
- eof() : bool
- Returns true if the stream is at the end of the stream.
- getContents() : string
- Returns the remaining contents in a string
- getMetadata() : mixed
- Get stream metadata as an associative array or retrieve a specific key.
- getSize() : int|null
- Get the size of the stream if known.
- isReadable() : bool
- Returns whether or not the stream is readable.
- isSeekable() : bool
- Returns whether or not the stream is seekable.
- isWritable() : bool
- Returns whether or not the stream is writable.
- read() : string
- Read data from the stream.
- rewind() : void
- Seek to the beginning of the stream.
- seek() : void
- Seek to a position in the stream.
- tell() : int
- Returns the current position of the file read/write pointer
- write() : int
- Write data to the stream.
Constants
READABLE_MODES
private
mixed
READABLE_MODES
= '/r|a\\+|ab\\+|w\\+|wb\\+|x\\+|xb\\+|c\\+|cb\\+/'
Tags
WRITABLE_MODES
private
mixed
WRITABLE_MODES
= '/a|w|r\\+|rb\\+|rw|x|c/'
Properties
$customMetadata
private
array<string|int, mixed>
$customMetadata
$readable
private
bool
$readable
$seekable
private
bool
$seekable
$size
private
int|null
$size
$stream
private
resource
$stream
$uri
private
string|null
$uri
$writable
private
bool
$writable
Methods
__construct()
This constructor accepts an associative array of options.
public
__construct(resource $stream[, array<string|int, mixed> $options = [] ]) : mixed
- size: (int) If a read stream would otherwise have an indeterminate size, but the size is known due to foreknowledge, then you can provide that size, in bytes.
- metadata: (array) Any additional metadata to return when the metadata of the stream is accessed.
Parameters
- $stream : resource
-
Stream resource to wrap.
- $options : array<string|int, mixed> = []
Tags
Return values
mixed —__destruct()
Closes the stream when the destructed
public
__destruct() : mixed
Return values
mixed —__toString()
Reads all data from the stream into a string, from the beginning to end.
public
__toString() : string
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.
Return values
string —close()
Closes the stream and any underlying resources.
public
close() : void
Return values
void —detach()
Separates any underlying resources from the stream.
public
detach() : resource|null
After the stream has been detached, the stream is in an unusable state.
Return values
resource|null —Underlying PHP stream, if any
eof()
Returns true if the stream is at the end of the stream.
public
eof() : bool
Return values
bool —getContents()
Returns the remaining contents in a string
public
getContents() : string
Return values
string —getMetadata()
Get stream metadata as an associative array or retrieve a specific key.
public
getMetadata([mixed $key = null ]) : mixed
Parameters
- $key : mixed = null
-
Specific metadata to retrieve.
Return values
mixed —getSize()
Get the size of the stream if known.
public
getSize() : int|null
Return values
int|null —Returns the size in bytes if known, or null if unknown.
isReadable()
Returns whether or not the stream is readable.
public
isReadable() : bool
Return values
bool —isSeekable()
Returns whether or not the stream is seekable.
public
isSeekable() : bool
Return values
bool —isWritable()
Returns whether or not the stream is writable.
public
isWritable() : bool
Return values
bool —read()
Read data from the stream.
public
read(mixed $length) : string
Parameters
- $length : mixed
-
Read up to $length bytes from the object and return them. Fewer than $length bytes may be returned if underlying stream call returns fewer bytes.
Return values
string —Returns the data read from the stream, or an empty string if no bytes are available.
rewind()
Seek to the beginning of the stream.
public
rewind() : void
If the stream is not seekable, this method will raise an exception; otherwise, it will perform a seek(0).
Return values
void —seek()
Seek to a position in the stream.
public
seek(mixed $offset[, mixed $whence = SEEK_SET ]) : void
Parameters
- $offset : mixed
-
Stream offset
- $whence : mixed = SEEK_SET
-
Specifies how the cursor position will be calculated based on the seek offset. Valid values are identical to the built-in PHP $whence values for
fseek(). SEEK_SET: Set position equal to offset bytes SEEK_CUR: Set position to current location plus offset SEEK_END: Set position to end-of-stream plus offset.
Return values
void —tell()
Returns the current position of the file read/write pointer
public
tell() : int
Return values
int —Position of the file pointer
write()
Write data to the stream.
public
write(mixed $string) : int
Parameters
- $string : mixed
-
The string that is to be written.
Return values
int —Returns the number of bytes written to the stream.