#47371 [Opn->Csd]: fseek: Description of negative offset use is not clear

ID: 47371 Updated by: torben@php.net Reported By: sammywg@php.net -Status: Open +Status: Closed Bug Type: Documentation problem PHP Version: Irrelevant New Comment: This bug has been fixed in the documentation's XML sources. Since the online and downloadable versions of the documentation need some time to get updated, we would like to ask you to be a bit patient. Thank you for the report, and for helping us make our documentation better. Previous Comments: ------------------------------------------------------------------------ [2009-09-04 07:28:54] svn@php.net Automatic comment from SVN on behalf of torben Revision: http://svn.php.net/viewvc/?view=revision&revision=288029 Log: Note that in order to use a negative offset to count from the end of the file, you must specify SEEK_END in the 'whence' parameter. Addresses bug #47371. ------------------------------------------------------------------------ [2009-02-12 16:27:46] sammywg@php.net Description: ------------ If you want to use negative fseek offset, it is not enough to use a negative offset as second parameter, also the third parameter must be specified as SEEK_END. The documentation should note that fact, currently it appears as if a function call like $i = fseek($filehandle, -100); would be adequate. Reproduce code: --------------- http://php.net/fseek Expected result: ---------------- To move to a position before the end-of-file, you need to pass a negative value in offset and set the whence parameter to SEEK_END. Actual result: -------------- To move to a position before the end-of-file, you need to pass a negative value in offset . ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=47371&edit=1