#15117 [Fbk->NoF]: fopen and fwrite writes to much data in mode a and a+

ID: 15117 Updated by: php-bugs@lists.php.net Reported By: bitbybit@fibre.a2000.nl -Status: Feedback +Status: No Feedback Bug Type: Filesystem function related Operating System: W2K PHP Version: 4.1.1 New Comment: No feedback was provided for this bug for over a month, so it is being suspended automatically. If you are able to provide the information that was originally requested, please do so and change the status of the bug back to "Open". Previous Comments: ------------------------------------------------------------------------ [2002-07-10 23:50:59] sniper@php.net Please try this snapshot: http://snaps.php.net/win32/php4-win32-latest.zip ------------------------------------------------------------------------ [2002-01-26 00:10:47] webmaster@lxtype.com Reproduced it. However, after the first two times, the same code stopped doing it (I only changed the string?). Seems to be semi-random at least, or something. Could it be a browser bug, having the page "accidentally" being submitted/reloaded? Temporary "fix" is to conditionally open it: if(!file_exists('orders.txt') || @file_size('orders.txt')==0) $fp = fopen('orders.txt', 'w'); else $fp = fopen('orders.txt', 'a'); ------------------------------------------------------------------------ [2002-01-20 06:26:27] bitbybit@fibre.a2000.nl It doesn't really matter with fopen() in append mode. It just opens the file to append new data to the end of the file. What data will be added, depents on when(?) and what(?)data the user submitted with the form. Till that point it goes fine. But then there is this string with same time mark being added to the file. Ofcourse multiple submitions result in this same pattern being repeated over and over again. ------------------------------------------------------------------------ [2002-01-20 04:16:40] sander@php.net Are you sure the file is empty before the fopen() call? See www.php.net/fopen for some more info... ------------------------------------------------------------------------ [2002-01-19 17:07:02] bitbybit@fibre.a2000.nl ---- code ---- $orderstring = $date."\t". //current time $tireqty." tires\t". //received form field $oilqty." oil\t". //received form field $sparkqty." sparks\t". //received form field $totalamount."\t". /calc. from form fields $address."\n"; //received form field $fp = fopen("orders.txt", "a"); fwrite($fp, $orderstring); fclose($fp); ---- output in orders.txt ---- 22:32 19th Saturday 2002 4 tires 1 oil 12 sparks 503.80 NL 22:32 19th Saturday 2002 tires oil sparks 0.00 Bug: When using fopen() in mode a or a+ the last line will be added without any obvious cause. When fopen() is used in same code but in mode w it works correct like expected. I haven't tested fopen() in all other available modes. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=15117&edit=1