Lock

ensures that there can only be one call at runtime; prevents multiple calls at runtime.

As long as the runtime takes, Lock prevents multiple calls.

create(string $sKey = '', bool $bReturn = false)

Usage

simply note the following command at the place you want to be protected from multiple calls.

In most cases this would be inside a Controller method.

Example

public function index()
{
    Lock::create();
    ...
}

This command creates a lock folder inside your cache folder during runtime.

When runtime is over, the lock folder will be removed automatically.