Function stream_for
Create a new stream based on the input type.
Options is an associative array that can contain the following keys: - metadata: Array of custom metadata. - size: Size of the stream.
This method accepts the following $resource types:
- Psr\Http\Message\StreamInterface: Returns the value as-is.
- string: Creates a stream object that uses the given string as the contents.
- resource: Creates a stream object that wraps the given PHP stream resource.
- Iterator: If the provided value implements Iterator, then a read-only stream object will be created that wraps the given iterable. Each time the stream is read from, data from the iterator will fill a buffer and will be continuously called until the buffer is equal to the requested read size. Subsequent read calls will first read from the buffer and then call next on the underlying iterator until it is exhausted.
- object with __toString(): If the object has the __toString() method, the object will be cast to a string and then a stream will be returned that uses the string value.
- NULL: When null is passed, an empty stream object is returned.
- callable When a callable is passed, a read-only stream object will be created that invokes the given callable. The callable is invoked with the number of suggested bytes to read. The callable can return any number of bytes, but MUST return false when there is no more data to return. The stream object that wraps the callable will invoke the callable until the number of requested bytes are available. Any additional bytes will be buffered and used in subsequent reads.
Deprecated: stream_for will be removed in guzzlehttp/psr7:2.0. Use Utils::streamFor instead.
Located at functions.php
Parameters summary
resource|string|null|integer|float|boolean| |
$resource = '' |
Entity body data |
array |
$options = [] |
Additional options |
Return value summary
|
StreamInterface |
Thrown exceptions summary
InvalidArgumentException
|
if the $resource arg is not valid. |