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php - Illuminate中的call_user_func出错

天蓬老师 2017-04-11 09:53:17

253

/**
 * Get the current PDO connection.
 *
 * @return \PDO
 */
public function getPdo()
{
    if ($this->pdo instanceof Closure) {
        return $this->pdo = call_user_func($this->pdo);
    }

    return $this->pdo;
}


为什么call_user_func会出错呢？