mysqli扩充

<br />$conn = new mysqli('localhost','root','123','zx','3306');<br /><br />if (mysqli_connect_errno()) {<br />    printf("Connect failed: %s\n", mysqli_connect_error());<br />    exit();<br />}<br /><br /><br />$prepare = $conn -> prepare("INSERT INTO  test  (uid,name) VALUES('?','?')");<br /><br />$num = 12;<br /><br />$hanzi = "xiha";<br /><br />$prepare -> bind_param('is',$num,$hanzi);<br /><br /><br /><br />$prepare -> execute();<br /><br /><br />