From: [EMAIL PROTECTED] Operating system: PHP version: 4.1.0 PHP Bug Type: Documentation problem Bug description: popen() never returns false
popen() doesn't return false on non-existent file. Bug#9043 says that it is intentional, but probably it's not the expected behavior and should be noted in the manual. if (popen("/i/dont/exist","r")) echo "OK"; results in "OK" (and no warning is issued). Also applies to exec(), system() and backtick operator. -- Edit bug report at: http://bugs.php.net/?id=14621&edit=1