Req #69213 [Opn->Nab]: consecutivly issued fseek don't work properly when together over PHP_MAX_INT

Edit report at https://bugs.php.net/bug.php?id=69213&edit=1 ID: 69213 Updated by: ab@php.net Reported by: johnregphpbug at stefanie dot de Summary: consecutivly issued fseek don't work properly when together over PHP_MAX_INT -Status: Open +Status: Not a bug Type: Feature/Change Request Package: Filesystem function related Operating System: Win 7 Home Premium SP1 PHP Version: Irrelevant Block user comment: N Private report: N 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 Thanks for the report. PHP before 7 on Windows doesn't support large file operations. All the APIs used are 32 bit APIs. Same for integers. Und anyway much less in the 32 bit build, no matter what bitness the OS has. Instead, it'd be really appreciable you to take some latest snapshot http://windows.php.net/downloads/snaps/master/ to test the functionality you've described. It is the highest time for that now :) Though note that you'll need a 64 bit build for LFS. Thanks. Previous Comments: ------------------------------------------------------------------------ [2015-03-10 13:57:01] johnregphpbug at stefanie dot de Description: ------------ (This is my first ever bug report on php.) (PHP 5.6.3 doesn't show up on the drop down list on the bug report form, so I choose "irrelevant".) I have Win 7, 64 bit. Latest XAMPP version, that has a 32 bit php 5.6.3. On testing http://php.net/manual/en/function.fseek.php#112647 for a very big file (bigger than PHP_MAX_INT 2147483647) I'm now pretty sure, that the consecutivly following fseeks are summed up before really executed on the filepointer. The result is that those fseeks only seek up to PHP_MAX_INT ahead from the current filepointer-position. I found a workaround for that, as putting a fread between two originally consecutivly following fseeks seems to stop the aggregation. (Though that workaround needs a second small workaround, as fread can't be called with 0 bytes read length, so I have to fread one byte and put this in the calculation for breaking up the big number seek to smaller seeks.) (Another bug: Once the filepointer is over PHP_MAX_INT then ftell will give back a negative number.) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=69213&edit=1