addListener(string $eventName, callable $listener, int $priority)
Adds an event listener that listens on the specified events.
addListener(string $eventName, callable $listener, int $priority)
Adds an event listener that listens on the specified events.
| string | $eventName | The event to listen on |
| callable | $listener | The listener |
| int | $priority | The higher this value, the earlier an event listener will be triggered in the chain (defaults to 0) |
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