Bug #66353 [NEW]: fgets unexpected behaviour in non-blocking mode

From: an0nym at narod dot ru Operating system: Linux, BSD PHP version: 5.5.7 Package: Streams related Bug Type: Bug Bug description:fgets unexpected behaviour in non-blocking mode Description: ------------ In non-blocking mode fgets should buffer data it read from stream until it meets eol or eof instead of returning anything it read. Test script: --------------- $ cat test1.php <?php fwrite(STDOUT, 'test1'); sleep(5); fwrite(STDOUT, "\n"); sleep(5); fwrite(STDOUT, "test2\n"); $ cat test2.php <?php stream_set_blocking(STDIN, false); do { $test = fgets(STDIN); if ($test) { var_dump($test); } } while (!feof(STDIN)); $ php55 test1.php | php55 test2.php Expected result: ---------------- string(6) "test1 " string(6) "test2 " Actual result: -------------- string(5) "test1" string(1) " " string(6) "test2 " -- Edit bug report at https://bugs.php.net/bug.php?id=66353&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=66353&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=66353&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=66353&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=66353&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=66353&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=66353&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=66353&r=needscript Try newer version: https://bugs.php.net/fix.php?id=66353&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=66353&r=support Expected behavior: https://bugs.php.net/fix.php?id=66353&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=66353&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=66353&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=66353&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=66353&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=66353&r=dst IIS Stability: https://bugs.php.net/fix.php?id=66353&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=66353&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=66353&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=66353&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=66353&r=mysqlcfg