events.php

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<?php
function elgg_register_event_handler(string $event, string $type, callable|string $callback, int $priority = 500): bool {
    return _elgg_services()->events->registerHandler($event, $type, $callback, $priority);
}

function elgg_unregister_event_handler(string $event, string $type, callable|string $callback): void {
    _elgg_services()->events->unregisterHandler($event, $type, $callback);
}

function elgg_clear_event_handlers(string $event, string $type): void {
    _elgg_services()->events->clearHandlers($event, $type);
}

function elgg_trigger_event(string $event, string $type, $object = null): bool {
    return _elgg_services()->events->trigger($event, $type, $object);
}

function elgg_trigger_event_results(string $event, string $type, array $params = [], $returnvalue = null) {
    return _elgg_services()->events->triggerResults($event, $type, $params, $returnvalue);
}

function elgg_trigger_before_event(string $event, string $type, $object = null): bool {
    return _elgg_services()->events->triggerBefore($event, $type, $object);
}

function elgg_trigger_after_event(string $event, string $type, $object = null): void {
    _elgg_services()->events->triggerAfter($event, $type, $object);
}

function elgg_trigger_deprecated_event(string $event, string $type, $object = null, string $message = '', string $version = '') {
    return _elgg_services()->events->triggerDeprecated($event, $type, $object, $message, $version);
}

function elgg_trigger_deprecated_event_results(string $event, string $type, array $params = [], $returnvalue = null, string $message = '', string $version = '') {
    return _elgg_services()->events->triggerDeprecatedResults($event, $type, $params, $returnvalue, $message, $version);
}