PHP code example of f3ath / flock
1. Go to this page and download the library: Download f3ath/flock library. Choose the download type require. 2. Extract the ZIP file and open the index.php. 3. Add this code to the index.php.
<?php
require_once('vendor/autoload.php');
/* Start to develop here. Best regards https://php-download.com/ */
f3ath / flock example snippets
$file = '/tmp/my_lock.pid';
$lock = new F3\Flock\Lock($file);
// Non-blocking case. Acquire lock if it's free, otherwse exit immediately
if ($lock->acquire()) {
// only one instance can reach here
...
// do some job
...
$lock->release();
} else {
die('Another process is running')
}
// Waiting case. Acquire lock if it's free, otherwse block until it's free and then acquire
if ($lock->acquire(F3\Flock\Lock::BLOCKING)) {
// only one instance can reach here
...
// do some job
...
$lock->release();
} else {
// We sould not get to this point in this case
}