Re: Capturing shell command output.

On 8/27/07, Richard Lynch <ceo@l-i-e.com> wrote: > You could look into using "named pipes" in PHP. > > I think PHP is already folding stderr into stdout (2>&1) for you. > > You could also try using http://php.net/exec instead of the > backticks > to get a separate error code if there is an error. > > On Sat, August 18, 2007 3:26 pm, shiplu wrote: > > HI, > > I am working on a PHP project that interacts with command line > > utilities. > > My php is running by apache. Means I am not running any php CLI. > > > > here is the function that I am using for capturing command output. > > > > function run_command($comamnd){ > > $ret=$command 1> COMMAND.OUT 2>1; > > $contents=get_file_contents("COMMAND.OUT"); > > return $contents; > > } > > > > The function does not work. If I use any shell command like ls, cat, > > echo, set. it works. > > But If I use any utility like, mpg321, cd-info. It does not work. It > > outputs a blank string. > > I used system(), passthru() with both "2&>1" and "2>1". But > > no out > > put. > > All the time, its blank. > > Even I used a shell script "run.sh" > > run.sh contents: > > ===================================== > > #!/bin/sh > > sh COMMAND 1> COMMAND.OUT 2&>1 > > cat COMMAND.OUT > > echo 0 > COMMAND > > ===================================== > > > > I called this script by this function > > function run_command($command){ > > $h=fopen("COMMAND","w"); > > fwrite($h,$command); > > fclose($h); > > ob_start(); > > passthru("./run.sh"); > > $ret = ob_get_contents(); > > ob_end_clean(); > > return $ret; > > } > > > > and by this. > > > > function run_command($command){ > > $h=fopen("COMMAND","w"); > > fwrite($h,$command); > > fclose($h); > > return system("./run.sh"); > > } > > > > Please help me. or show me some way. > > > > > > -- > > shout at http://shiplu.awardspace.com/ > > > > Available for Hire/Contract/Full Time > > > > -- > > PHP General Mailing List (http://www.php.net/) > > To unsubscribe, visit: http://www.php.net/unsub.php > > > > > > > -- > Some people have a "gift" link here. > Know what I want? > I want you to buy a CD from some indie artist. > http://cdbaby.com/browse/from/lynch > Yeah, I get a buck. So? > > I have tried same file as cli and as webpage. I don't know why only cli version works nicely. There may be some issue. But my technique has some advantages. It can run command asynchronously. Thats what i need for my application. I can create command queue. I and I can get the completion percentage from there. Whatever, I wish I could know those issues. Rather it could happen that, php-apache framework is doing something that I am unaware of. -- shout at http://shiplu.awardspace.com/ Available for Hire/Contract/Full Time