PHP flock () behavior on Windows vs Linux

Question

I am executing the same piece of code on a Windows machine and a Linux machine. Both work with PHP 5.4:

$file = "lock.txt";
$fp = fopen($file, "w+");
flock($fp, LOCK_EX);
var_dump(@file_put_contents($file, 'hello' . rand()));
flock($fp, LOCK_UN);
fclose($fp);

On a Windows computer, the operation file_put_contents()fails and returns false. On a Linux machine, this succeeds.

I'm trying to figure out which of these two actions is really correct, and how I can standardize the behavior in both systems (for the record, my goal is failure file_put_contents(). I don’t need to be solid or atomic, I just want it to fail.)

I saw many other questions on this topic, but all of them seem to refer to several scripts accessing the same file, which is not the case here.

Answer 1

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flock() Windows

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