#42280 [NEW]: Change in File Upload Behavior

From: chris at dented-planet dot net Operating system: Mac OS X 10.4.10 PHP version: 5.2.4RC1 PHP Bug Type: Unknown/Other Function Bug description: Change in File Upload Behavior Description: ------------ I don't know if this is considered a bug there there has been a change in behavior in the File Upload handling when uploading a zero-length file. The change happened after PHP 5.2.2 and is in 5.2.4RC1 as well. Note: I am not using a debug build. Reproduce code: --------------- Use this code to upload a zero-length file (I used Firefox 1.5.x): <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US"> <head></head> <body> <form method="post" action="<?php echo $_SERVER['PHP_SELF'] ?>" enctype="multipart/form-data"> <input type="file" name="upload_file" /> <br /> <input type="submit" name="submit" value="Submit" /> </form> <br /> <pre> <?php var_dump($_FILES); ?> </pre> </body> </html> Expected result: ---------------- In PHP 5.2.2, the output of var_dump($_FILES) is: array(1) { ["upload_file"]=> array(5) { ["name"]=> string(9) "empty.txt" ["type"]=> string(10) "text/plain" ["tmp_name"]=> string(18) "/var/tmp/phpLAvnSB" ["error"]=> int(0) ["size"]=> int(0) } } In PHP 5.2.3 and later it is: array(1) { ["upload_file"]=> array(5) { ["name"]=> string(9) "empty.txt" ["type"]=> string(0) "" ["tmp_name"]=> string(0) "" ["error"]=> int(5) ["size"]=> int(0) } } Especially, notice the change in "error". -- Edit bug report at http://bugs.php.net/?id=42280&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=42280&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=42280&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=42280&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=42280&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=42280&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=42280&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=42280&r=needscript Try newer version: http://bugs.php.net/fix.php?id=42280&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=42280&r=support Expected behavior: http://bugs.php.net/fix.php?id=42280&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=42280&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=42280&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=42280&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=42280&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=42280&r=dst IIS Stability: http://bugs.php.net/fix.php?id=42280&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=42280&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=42280&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=42280&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=42280&r=mysqlcfg