Bug #70483 [NEW]: stream_select depends on concrete value of given resource inside array

From: edefimov dot it at gmail dot com Operating system: Ubuntu 14.04 (64bit) PHP version: 5.6.13 Package: Streams related Bug Type: Bug Bug description:stream_select depends on concrete value of given resource inside array Description: ------------ When script creates resource with identifier greater than FD_SETSIZE and pass it as the only argument to stream_select, php warning is emitted and stream_select fails. Test script: --------------- <?php $nomatter = []; $sockets = []; for ($i = 0; $i <= 1024; $i++) { $sockets[] = stream_socket_client('tcp://php.net:80', $errno, $errstr, STREAM_CLIENT_ASYNC_CONNECT); } $s = stream_socket_client('tcp://php.net:80', $errno, $errstr, STREAM_CLIENT_CONNECT | STREAM_CLIENT_ASYNC_CONNECT); var_dump($s); $read = [$s]; $result = stream_select($read, $nomatter, $nomatter, 1); var_dump($result); Expected result: ---------------- resource(1030) of type (stream) int(1) Actual result: -------------- resource(1030) of type (stream) PHP Warning: stream_select(): You MUST recompile PHP with a larger value of FD_SETSIZE. It is set to 1024, but you have descriptors numbered at least as high as 1028. --enable-fd-setsize=2048 is recommended, but you may want to set it to equal the maximum number of open files supported by your system, in order to avoid seeing this error again at a later date. in /test.php on line 13 PHP Stack trace: PHP 1. {main}() /test.php:0 PHP 2. stream_select() /test.php:13 int(0) -- Edit bug report at https://bugs.php.net/bug.php?id=70483&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=70483&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=70483&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=70483&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=70483&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=70483&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=70483&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=70483&r=needscript Try newer version: https://bugs.php.net/fix.php?id=70483&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=70483&r=support Expected behavior: https://bugs.php.net/fix.php?id=70483&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=70483&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=70483&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=70483&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=70483&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=70483&r=dst IIS Stability: https://bugs.php.net/fix.php?id=70483&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=70483&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=70483&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=70483&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=70483&r=mysqlcfg