xref: /PHP-8.2/Zend/tests/bug21478.phpt (revision 48981f4f)
1--TEST--
2Bug #21478 (Zend/zend_alloc.c :: shutdown_memory_manager produces segfault)
3--FILE--
4<?php
5class debugfilter extends php_user_filter {
6  function filter($in, $out, &$consumed, $closing): int {
7    while ($bucket = stream_bucket_make_writeable($in)) {
8      $bucket->data = strtoupper($bucket->data);
9      stream_bucket_append($out, $bucket);
10      $consumed += strlen($bucket->data);
11    }
12    return PSFS_PASS_ON;
13  }
14}
15
16stream_filter_register("myfilter","debugfilter");
17
18$fp = fopen(__DIR__."/test.txt","w");
19stream_filter_append($fp, "myfilter");
20stream_filter_append($fp, "myfilter");
21stream_filter_append($fp, "myfilter");
22fwrite($fp, "This is a test.\n");
23print "Done.\n";
24fclose($fp);
25// Uncommenting the following 'print' line causes the segfault to stop occurring
26// print "2\n";
27readfile(__DIR__."/test.txt");
28unlink(__DIR__."/test.txt");
29?>
30--EXPECT--
31Done.
32THIS IS A TEST.
33