Couldn't open $file for writing!

"); //open file for writing if(!fwrite($fp, $data)) //write the code to file { shell_exec("rm -rf $srcpath"); die("

Couldn't write values to file!

"); //clean up and exit if unable to write } fclose($fp); //close and save the file echo "

Saved to $file successfully!

"; //notify the user that file has been saved echo"

Compiling the program $file
"; $output1 = shell_exec("g++ $srcpath -o $executable 2>&1"); /* try compiling the program with GCC and collect errors and warnings */ if($output1!=NULL) { echo "Error list:

$output1

"; //display the errors and warnings if present } echo "

"; if(file_exists($executable)) //check if executable exists { echo "

Running the program:
"; $output2 = shell_exec("echo $stdin | $executable $args 2>&1"); /* execute the file providing the necessary inputs and collect the output */ echo "

$output2

"; echo "

"; } shell_exec("rm -rf $srcpath $executable"); //clean up the session files } else //do if saving request is not provided { echo "

Enter your code in the left frame and hit run to display the output.

"; /* tell the user to fill up the form on the left frame */ } ?>