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ext/standard: Fix stale stat cache after ftruncate() #25234

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arshidkv12 wants to merge 2 commits into from
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ext/standard: Fix stale stat cache after ftruncate() #25234

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ext/standard: Fix stale stat cache after ftruncate()
arshidkv12 Nov 6, 2026
7d3e8f5
ext/standard: Fix stale stat cache after ftruncate()
arshidkv12 Nov 6, 2026
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6 changes: 5 additions & 1 deletion ext/standard/file.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1374,7 +1374,11 @@ PHP_FUNCTION(ftruncate)
RETURN_FALSE;
}

RETURN_BOOL(0 == php_stream_truncate_set_size(stream, size));
if (php_stream_truncate_set_size(stream, size) == 0) {
php_clear_stat_cache(0, NULL, 0);
RETURN_TRUE;
}
RETURN_FALSE;
}
/* }}} */
PHPAPI void php_fstat(php_stream *stream, zval *return_value)
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23 changes: 23 additions & 0 deletions ext/standard/tests/file/ftruncate_stat_cache.phpt
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@@ -0,0 +1,23 @@
--TEST--
GH-25232 ftruncate() clears the stat cache
--CREDITS--
tolry (tobias.olry@gmail.com)
--FILE--
<?php
$file = tempnam(sys_get_temp_dir(), 'stat-demo-');

file_put_contents($file, 'abcdefgh');

$handle = fopen($file, 'r+');

var_dump(filesize($file));
var_dump(ftruncate($handle, 3));
var_dump(filesize($file));

fclose($handle);
unlink($file);
?>
--EXPECT--
int(8)
bool(true)
int(3)
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