How to create cron job using PHP?

Question

I\'m new to using cron job. I don\'t even know how to write it. I have tried to search from internet, but I still don\'t understand it well. I want to create a cron job that

Answer 1

$command = "php ".CRON_PATH.php ";
if(substr(php_uname(), 0, 7) == "Windows"){
pclose(popen("start /B ". $command, "r"));
}else{
shell_exec($command ." > /dev/null &");
}