1 <?php
 2 
 3 namespace Http\Message\Encoding;
 4 
 5 /**
 6  * Transform a regular stream into a chunked one.
 7  *
 8  * @author Joel Wurtz <joel.wurtz@gmail.com>
 9  */
10 class ChunkStream extends FilteredStream
11 {
12     /**
13      * {@inheritdoc}
14      */
15     public function getReadFilter()
16     {
17         if (!array_key_exists('chunk', stream_get_filters())) {
18             stream_filter_register('chunk', 'Http\Message\Encoding\Filter\Chunk');
19         }
20 
21         return 'chunk';
22     }
23 
24     /**
25      * {@inheritdoc}
26      */
27     public function getWriteFilter()
28     {
29         return 'dechunk';
30     }
31 
32     /**
33      * {@inheritdoc}
34      */
35     protected function fill()
36     {
37         parent::fill();
38 
39         if ($this->stream->eof()) {
40             $this->buffer .= "0\r\n\r\n";
41         }
42     }
43 }
44 

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