Bug #72182 [Com]: \SplFileObject::getSize() returns 0 for files created with tempnam()

Edit report at https://bugs.php.net/bug.php?id=72182&edit=1 ID: 72182 Comment by: david at curtis-whitfield dot co dot uk Reported by: bishop@php.net Summary: \SplFileObject::getSize() returns 0 for files created with tempnam() Status: Open Type: Bug Package: SPL related PHP Version: 5.5.0-5.6.21, 7.0.0-7.0.6 Block user comment: N Private report: N New Comment: Same behaviour replicated in the following environment; PHP Version: 7.2.13 OS: Alpine Linux v3.8 As suggested, calling clearstatcache() before the call to getSize() resolved the issue. Previous Comments: ------------------------------------------------------------------------ [2016-05-09 18:33:39] bishop@php.net To clarify, if one adds clearstatcache() before the getSize() calls, then the output is as expected: 6 6 6 6 The gist of this bug report is that the behavior of getSize() for file names created by tempnam() and file names created manually should be the same. Both should require clearstatcache, or neither should require. ------------------------------------------------------------------------ [2016-05-09 18:11:07] bishop@php.net Description: ------------ \SplFileObject does not seem to treat file names created by tempnam() the same as file names created manually. In the latter case, \SplFileObject::getSize() reports the correct on-disk size during write operations as well as subsequent reads. The former case, however, returns 0 consistently. HHVM appears to operate as expected. See also https://3v4l.org/vLlb0 Test script: --------------- $paths = [ sys_get_temp_dir() . DIRECTORY_SEPARATOR . 'bishop', tempnam(sys_get_temp_dir(), 'bishop'), ]; foreach ($paths as $path) { $fileW = new \SplFileObject($path, 'w'); $fileW->fputcsv(range(0,2)); assert(6 === $fileW->getSize()); echo $fileW->getSize() . PHP_EOL; $fileR = new \SplFileObject($path, 'r'); assert(6 === $fileR->getSize()); echo $fileR->getSize() . PHP_EOL; } Expected result: ---------------- 6 6 6 6 Actual result: -------------- 6 6 PHP Warning: assert(): Assertion failed ... 0 PHP Warning: assert(): Assertion failed ... 0 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=72182&edit=1