PHP flock() alternative

Question

PHP\'s documentation page for flock() indicates that it\'s not safe to use under IIS. If I can\'t rely on flock under all circumstances, is there another way I

Answer 1

I appreciate this question is a few years old but I kinda felt that a working example/replacement for flock might be worth building. I've based this on the other answers but for someone who is purely looking to replace the flock functionality (rather than write a file at the same time (although this does reflect the PHP manual flock example)) I believe the following will suffice

function my_flock ($path,$release = false){
    if ($release){
        @rmdir($path);
    } else {
        return !file_exists($path) && @mkdir($path);
    }
}