I saw a couple of other question on the issue but not a clear answer.
I've a PHP file (must be PHP, cannot cron or other stuff) running from CLI where I must call the same function multiple time with different arguments:
doWork($param1);
doWork($param2);
doWork($param2);
function doWork($data)
{
//do stuff, write result to db
}
Each call makes HTTPs requests and parses the response. The operation can require up to a minute to complete. I must prevent the "convoy effect": each call must be executed without waiting for the previous one to complete.
PECL pthread is not an option due to server constraints.
Any ideas?
As far as I know you cannot do what you are looking for.
Instead of calling a function with its parameters, you have to call another cli php script in a nonblocking manner and put your function in that script.
This is your main script:
callDoWork($param1);
callDoWork($param2);
callDoWork($param3);
function callDoWork($param){
$cmd = 'start "" /b php doWork.php '.$param;
//if $param contains spaces or other special caracters for the command line,
// you have to escape them.
pclose(popen($cmd);
}
doWork.php would look like :
if(is_array($_SERVER['argv'])) $param = $_SERVER['argv'][1];
doWork($param);
function doWork($data)
{
//do stuff, write result to db
}