How does the trylock function in PHP handle situations where other threads already have a lock?

When using the trylock function in PHP, if other threads already have a lock, the function will return false, indicating that the lock could not be acquired at that moment. To handle this situation, you can implement a retry mechanism where the thread will attempt to acquire the lock again after a certain interval. 

$mutex = new Mutex();

while (!$mutex->trylock()) {
    // Wait for a short interval before retrying
    usleep(100000); // 100 milliseconds
}

// Code that requires the lock goes here

$mutex->unlock();

Keywords

trylock PHP threads lock concurrency

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