(PHP 5, PHP 7)
mysqli::init -- mysqli_init — Initializes MySQLi and returns a resource for use with mysqli_real_connect()
面向对象风格
过程化风格
Allocates or initializes a MYSQL object suitable for mysqli_options() and mysqli_real_connect().
Note:
Any subsequent calls to any mysqli function (except mysqli_options()) will fail until mysqli_real_connect() was called.
Returns an object.