note 89742 added to function.exec

i tried to execute some shell commands using this function, but it don't work. it seem like i need the root privileges to execute this commands. the commands work fine with the terminal. here is the command i want to execute openssl req -config openssl.my.cnf -new -nodes -keyout private/server.key -out server.csr -batch -days 365 when i try to do the following the command doesn't execute exec("openssl req -config openssl.my.cnf -new -nodes -keyout private/server.key -out server.csr -batch -days 365"); the command doesn't ask for argument (configuration modified). is the problem with the apache or the php. sorry iam new to php and linux ---- Server IP: 69.147.83.197 Probable Submitter: 41.209.88.63 ---- Manual Page -- http://www.php.net/manual/en/function.exec.php Edit -- https://master.php.net/note/edit/89742 Del: integrated -- https://master.php.net/note/delete/89742/integrated Del: useless -- https://master.php.net/note/delete/89742/useless Del: bad code -- https://master.php.net/note/delete/89742/bad+code Del: spam -- https://master.php.net/note/delete/89742/spam Del: non-english -- https://master.php.net/note/delete/89742/non-english Del: in docs -- https://master.php.net/note/delete/89742/in+docs Del: other reasons-- https://master.php.net/note/delete/89742 Reject -- https://master.php.net/note/reject/89742 Search -- https://master.php.net/manage/user-notes.php