Bug #71796 [NEW]: exec cant work when the cmd is too long

From: hehu2012 at gmail dot com Operating system: Centos6.7 x86 PHP version: 7.0.4 Package: PHP Language Specification Bug Type: Bug Bug description:exec cant work when the cmd is too long Description: ------------ I use exec("`fmpeg -i /var/www/ad-1/www/uploads/ad/v/5e/8f/98/88/5e8f98881c4da88fb31a1fe1b93c45d6.mp4 -y -f mjpeg -ss 3 -t 0.001 -s 640x1136 /var/www/ad-1/www/uploads/ad/v/5e/8f/98/88/5e8f98881c4da88fb31a1fe1b93c45d6.jpg") in php file, it doesn't work. But I use exec("whoami"), it work well. When I use fmpeg -i /var/www/ad-1/www/uploads/ad/v/5e/8f/98/88/5e8f98881c4da88fb31a1fe1b93c45d6.mp4 -y -f mjpeg -ss 3 -t 0.001 -s 640x1136 /var/www/ad-1/www/uploads/ad/v/5e/8f/98/88/5e8f98881c4da88fb31a1fe1b93c45d6.jpg in command line it work well. But when I use exec("`fmpeg -i /var/www/ad-1/www/uploads/ad/v/5e/8f/98/88/5e8f98881c4da88fb31a1fe1b93c45d6.mp4 -y -f mjpeg -ss 3 -t 0.001 -s 640x1136 /var/www/ad-1/www/uploads/ad/v/5e/8f/98/88/5e8f98881c4da88fb31a1fe1b93c45d6.jpg") in php it doesn't work. Test script: --------------- exec("fmpeg -i /var/www/ad-1/www/uploads/ad/v/5e/8f/98/88/5e8f98881c4da88fb31a1fe1b93c45d6.mp4 -y -f mjpeg -ss 3 -t 0.001 -s 640x1136 /var/www/ad-1/www/uploads/ad/v/5e/8f/98/88/5e8f98881c4da88fb31a1fe1b93c45d6.jpg") Expected result: ---------------- exec can work well when the cmd is long? Actual result: -------------- It return code 127 -- Edit bug report at https://bugs.php.net/bug.php?id=71796&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=71796&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=71796&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=71796&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=71796&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=71796&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=71796&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=71796&r=needscript Try newer version: https://bugs.php.net/fix.php?id=71796&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=71796&r=support Expected behavior: https://bugs.php.net/fix.php?id=71796&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=71796&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=71796&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=71796&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=71796&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=71796&r=dst IIS Stability: https://bugs.php.net/fix.php?id=71796&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=71796&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=71796&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=71796&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=71796&r=mysqlcfg