function BufferStream::read

Reads data from the buffer.

Overrides StreamInterface::read

File

vendor/guzzlehttp/psr7/src/BufferStream.php, line 105

Class

BufferStream

Provides a buffer stream that can be written to to fill a buffer, and read from to remove bytes from the buffer.

Namespace

GuzzleHttp\Psr7

Code

public function read($length) : string {
    $currentLength = strlen($this->buffer);
    if ($length >= $currentLength) {
        // No need to slice the buffer because we don't have enough data.
        $result = $this->buffer;
        $this->buffer = '';
    }
    else {
        // Slice up the result to provide a subset of the buffer.
        $result = substr($this->buffer, 0, $length);
        $this->buffer = substr($this->buffer, $length);
    }
    return $result;
}