PHP implements multi-process parallel operation (can be used as a daemon process)

PHP simply implements multi-process parallel processing. The child process is responsible for processing things. The parent process can control the number of child processes and is implemented with pcntl extension (Note: This effect cannot be achieved under Windows)                                                      
                                                                                                                                                                                                                                                                                                    



/**

 in terminal*/


ProcessOpera("runCode", array(), 8);

/**
 * run Code
*/
function runCode($opt = array()) {
 //Code that needs to be run in the daemon process
}

/**
 * $func is the function name of the child process to perform specific things
 * $opt is the parameter of $func in array form
 * $pNum is the number of child processes for fork
*/
function ProcessOpera($func, $opts = array(), $pNum = 1) {
 while(true) {
 $pid = pcntl_fork();
 if($pid == -1) {
 exit("pid fork error");
 if($pid) {
 static $execute = 0;
               $execute++;
                                                                                        ($execute > while(true) {
                                                                                                                                                                                           1),