Shell-PHP ends the C program Loop

{Code...}: for example, run this program in linux. The PHP side calls shell_exec (); after the program is executed, how does one terminate the program loop?

#include 
  
   #include 
   
    #include 
    
     int loop;void Stoploop(void){    loop=0;}int main(int argc, char *argsv[]){int i;loop=1;while(loop==1){    printf("%d/n",i);    i++;}return 0;}
    
   
  

For example, run this program in linux.
The PHP side calls shell_exec (); after the program is executed, how does one terminate the program loop?

Reply content:

#include 
  
   #include 
   
    #include 
    
     int loop;void Stoploop(void){    loop=0;}int main(int argc, char *argsv[]){int i;loop=1;while(loop==1){    printf("%d/n",i);    i++;}return 0;}
    
   
  

For example, run this program in linux.
The PHP side calls shell_exec (); after the program is executed, how does one terminate the program loop?

Generally, it should be compiled into a dynamic library so called by the script, and such an infinite loop should open the thread, and then directly kill the thread when it needs to be stopped.

Your C program is a resident process. To terminate a program, you must kill the program C. Directly call the kill command. Or you have registered a signal in this C program, and you can send a signal to terminate it.

Essentially, you are the communication between PHP and C processes.
You can refer to the technical documents related to the inter-process communication IPC.

When loop! = 1. The loop ends.

In a simple and crude way, call shell_exec () and "kill-9 $ pid" to terminate the program.

Change the C code to loop = 1. Change it to the variable form.