Edit report at http://bugs.php.net/bug.php?id=47817&edit=1
ID: 47817 Comment by: php dot net at phor dot net Reported by: steven dot abarnett at gmail dot com Summary: PHP hangs when running proc_open() Status: Bogus Type: Bug Package: Reproducible crash Operating System: Windows XP PHP Version: 5.2.9 New Comment: I have the same problem. I am having occasional hangups on the proc_open command like this, but only when run in a class's constructor function. the same code works fine in the root context. Previous Comments: ------------------------------------------------------------------------ [2009-03-31 07:13:42] j...@php.net 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 ------------------------------------------------------------------------ [2009-03-29 11:49:35] steven dot abarnett at gmail dot com I have found a fix for now, although I would like to know if better options exist. The fault seems to lie in Windows. Both XP and Vista refuse to allow file descriptors over 2. When I changed the code like so it worked just fine: $descriptors = array( 0 => array("pipe", "r"), // STDIN. Used to feed input 1 => array("pipe", "r"), // STDOUT. We are writing to it, though 2 => array("pipe", "w"), // STDERR. Used to read errors ); // Build the command line and start the process $cmd = '"C:/program files/gnu/gnupg/gpg.exe" --batch --no-verbose --passphrase-fd 1 --output decrypted.zip --decrypt encrypted.zip.gpg'; $gpg = proc_open( $cmd, $descriptors, $pipes); if(is_resource($gpg)) { // Push passphrase to custom pipe fwrite($pipes[1], $passphrase); fclose($pipes[1]); proc_close($gpg); } Is there a solution to be able to create more pipes in Windows? It's very inconvenient having to write to STDOUT just to make my program work properly, as it prevents me from reading any output thrown out by the code (other than errors) ------------------------------------------------------------------------ [2009-03-28 02:48:21] steven dot abarnett at gmail dot com Description: ------------ Unfortunately as far as I can tell, I am the only person having this problem- which leads me to wonder if it's an issue with my PHP configuration. Although I keep using default configuration, so I am at a loss. I have tried installing PHP and Apache, I have tried in xampp, and I have tried in WAMP. Every time after running the proc_open() command the PHP script will wait for the process to close before reading the next line- making reading or writing to any pipes impossible. $fileDesc = array( 0 => array("pipe", "r"), // STDIN 1 => array("pipe", "w"), // STDOUT 2 => array("pipe", "w") // STDERR ); die("Got this far"); $handle = proc_open("C:/wherever/program.exe", $fileDesc, $pipes); fwrite($pipes[0], "input"); fclose($pipes[0]); proc_close($handle); Displays "Got this far" and dies, as expected. However: $fileDesc = array( 0 => array("pipe", "r"), // STDIN 1 => array("pipe", "w"), // STDOUT 2 => array("pipe", "w") // STDERR ); $handle = proc_open("C:/wherever/program.exe", $fileDesc, $pipes); die("Got this far"); fwrite($pipes[0], "input"); fclose($pipes[0]); proc_close($handle); Will simply hang and seem to cease all function. The moment that I close program.exe through task manager the script continues as if nothing were wrong, dying with the output "Got this far". The input is never passed to the program, although no errors are raised when I hit the proc_close() line. Reproduce code: --------------- $descriptors = array( 0 => array("pipe", "r"), // STDIN. Used to feed input 1 => array("pipe", "w"), // STDOUT. Used to read output 2 => array("pipe", "w"), // STDERR. Used to read errors 3 => array("pipe", "r") // We can feed the passphrase here ); // Build the command line and start the process $cmd = '"C:/program files/gnu/gnupg/gpg.exe" --batch --no-verbose --passphrase-fd 3 --output decrypted.zip --decrypt encrypted.zip.gpg'; $gpg = proc_open( $cmd, $descriptors, $pipes); if(is_resource($gpg)) { // Push passphrase to custom pipe fwrite($pipes[3], $passphrase); fclose($pipes[3]); proc_close($gpg); } Expected result: ---------------- Expected to find decrypted.zip in the same directory as the PHP script (a decrypted version of encrypted.zip.gpg, which is located in the same directory as the PHP script) Actual result: -------------- When localhost/test.php was run the webpage continued to load indefinitely. I waited as long as 20 minutes. The PHP.ini file should stop execution after 30 seconds. When gpg.exe was killed with task manager the page loaded but the .zip file was never created. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/bug.php?id=47817&edit=1
