#28790 [Opn->Bgs]: file write/close doesn't update file size stat cache

ID: 28790 Updated by: iliaa@php.net Reported By: jnoll at prim dot hu -Status: Open +Status: Bogus Bug Type: Filesystem function related Operating System: Debian GNU/Linux (unstable) PHP Version: 4.3.6 New Comment: Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php This is to be expected. Previous Comments: ------------------------------------------------------------------------ [2004-06-15 15:43:13] jnoll at prim dot hu Description: ------------ The problem is the following: 1. open a file for writing or appending 2. append a character (or anything) to that file 3. close file 4. get the file size with stat or filesize ERROR: this will return the OLD size, before writing If you do a clearstatcache(), the filesize will be the NEW size (the expected result) Reproduce code: --------------- <? $filename = "/tmp/stattest"; // initialise if (!file_exists($filename)) { $f = fopen($filename,"w"); fclose($f); echo "Reload, please."; exit; } $fs = filesize($filename); $fstat = stat($filename); echo "START: $fs, ".$fstat['size']."<BR>"; $f = fopen($filename,"a"); fputs($f,"x"); fclose($f); /** * bad result: this should be 1 byte more than the previous * BUT IT IS THE SAME!!! */ $fs = filesize($filename); $fstat = stat($filename); echo "AFTER(BAD): $fs, ".$fstat['size']."<BR>"; // force a clear clearstatcache(); /** * good result after clearstatcache (why???) */ $fs = filesize($filename); $fstat = stat($filename); echo "AFTER(GOOD): $fs, ".$fstat['size']."<BR>"; ?> Expected result: ---------------- START: 145, 145 AFTER(BAD): 145, 145 AFTER(GOOD): 146, 146 If AFTER(BAD) is less than AFTER(GOOD) value, that means PHP is buggy. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=28790&edit=1