src/Schema/MySqlBuilder.php
public function hasTrigger($trigger)
    {
        return count($this->connection->select(
            $this->grammar->compileTriggerExists(),
            [$trigger]
        )) > 0;
    }
public function hasTrigger($trigger)
    {
        return count($this->connection->select(
            $this->grammar->compileTriggerExists(),
            [$trigger]
        )) > 0;
    }
public function hasTrigger ( $ trigger ) { return count ( $ this -> connection -> select ( $ this -> grammar -> compileTriggerExists ( ) , [ $ trigger ] ) ) > 0 ; }
Determine if the given trigger exists.

@param  string  $trigger
@return bool
Determine if the given trigger exists .