EXEC NODE script from PHP (stop on async task)

Question

I try to run my script:

$exec_string = '/usr/bin/node /www/laravel/sitemap';
exec($exec_string,$output);

My script work fine from terminal (chmod and chown == ok). But when I run it from exec it finished after first async task. Node:

function callAddLink()
{
     1..100 async_function() {

          code and code...

          IT STOPS HERE. NEXT ASYNC TASK NEVER CALLS!
     }
}

Why it can happen? Code works fine everywhere except php exec.

justinrza · Accepted Answer · 2016-08-31 14:44:06Z

1

Adding an ampersand to the end of your command, will redirect the output stream until the program exits.

$exec_string = '/usr/bin/node /www/laravel/sitemap &';
exec($exec_string,$output);

The default behaviour for PHP exec function is to be synchronise/blocking (to wait until the program has exited before moving on). But when executing an asynchronous node CLI application it seems to return before the application has exited.

answered Aug 31, 2016 at 14:44

justinrza

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