PHP how to execute a command

Question

I\'m trying to use LibreOffice for converting a spreadsheet to another format, when I execute the command from the console it works fine but when I do it from PHP using exec

Answer 1

I also faced same problem before.....

This solution seems worked for me...

function execInBackground($cmd) { 
    if (substr(php_uname(), 0, 7) == "Windows"){ 
        pclose(popen("start /B ". $cmd, "r"));  
    } 
    else { 
        exec($cmd . " > /dev/null &");   
    } 
} 

$mainFile = "YOUR FILE";     
$cmd2 = "export HOME=/tmp
             libreoffice --headless --invisible --norestore --convert-to pdf " .
                    "'$mainFile'";



        $saved = getenv("LD_LIBRARY_PATH");        // save old value 
        $newld = "/usr/lib";  // extra paths to add 
        if ($saved) {

            putenv("LD_LIBRARY_PATH=" . $newld);
        }           
                // set new value 
        //


        // command is loaded using 
        // libs in the new path list 
        execInBackground($cmd2);
        putenv("LD_LIBRARY_PATH=$saved");        // restore old value