PHP Script to Execute C Files

Hi, I am writing a PHP script that upload a file that execute other c files by using system calls fork(), and exec(), and execl(). Unfortunately exec() and execl() functions did not work. In more details, the PHP script , execute exec() function to execute p1 which is the executable file of p1.c, and the p1.c program calls execl("./p2", "./p2", "[login to view URL]","[login to view URL]", NULL); to execute p2 which is the executable file of p2.c. As the result shows in screenshot file of the output; execl() function did not execute and have the following out Process 1 is running. Process 1 is forking a new child process. Process 1 is running. Process 1 is forking a new child process. The child of Process 1 is running. The child of Process 1 is replacing itself. YOU'LL NEVER EVER SEE THIS LINE :( It should have the following output: Process 1 is running. Process 1 is forking a new child process. Process 1 is running. Process 1 is forking a new child process. The child of Process 1 is running. The child of Process 1 is replacing itself. Process 2 is running Process 2 is expecting 2 arguments Process 2 receives 2 arguments I got this And I got this Process 2 is done. Goodbye!! That means this printf("YOU'LL NEVER EVER SEE THIS LINE :( \n"); will never execute if the execl() is working at p1.c program. To see the whole project how it works, please follow the follwing steps: 1- put all folder in some directory in your computer. 2- click on this URL : http://localhost/enc/ 3- Upload p1 file from app folder 4- click on upload button to see the result. 5- look at PHP script, and P1.c, P2.c for more details. Please check the attached files and send me privatge message if any query. I am expecting bids only from the serious bidders. Deadline: 1 day. Payment after successful completion of the project and delivery. Cheers!