1--TEST--
2Testing user filter on streams
3--FILE--
4<?php
5class Intercept extends php_user_filter
6{
7    public static $cache = '';
8    public function filter($in, $out, &$consumed, $closing): int
9    {
10        while ($bucket = stream_bucket_make_writeable($in)) {
11            self::$cache .= $bucket->data;
12            $consumed += $bucket->datalen;
13            stream_bucket_append($out, $bucket);
14        }
15        return PSFS_PASS_ON;
16    }
17}
18
19$out = fwrite(STDOUT, "Hello\n");
20var_dump($out);
21
22stream_filter_register("intercept_filter", "Intercept");
23stream_filter_append(STDOUT, "intercept_filter");
24
25$out = fwrite(STDOUT, "Goodbye\n");
26var_dump($out);
27?>
28--EXPECT--
29Hello
30int(6)
31Goodbye
32int(8)
33