/**
* Register an event listener with the dispatcher.
*
* @param string|array $events
* @param mixed $listener
* @param int $priority
* @return void
*/
public function listen($events, $listener, $priority = 0)
{
foreach ((array) $events as $event) {
if (Str::contains($event, '*')) {
$this->setupWildcardListen($event, $listener);
} else {
$this->listeners[$event][$priority][] = $this->makeListener($listener);
unset($this->sorted[$event]);
}
}
}
/**
* Determine if a given string contains a given substring.
*
* @param string $haystack
* @param string|array $needle
* @return bool
*/
function str_contains($haystack, $needle)
{
return Str::contains($haystack, $needle);
}
/**
* 是否 Json 数据请求
*
* @access public
* @return bool
*/
public static function isJson()
{
return Str::contains(self::header('CONTENT_TYPE'), '/json');
}
