mysqli扩展

$conn = new mysqli('localhost','root','123','zx','3306');

if (mysqli_connect_errno()) {
    printf("Connect failed: %s\n", mysqli_connect_error());
    exit();
}


$prepare = $conn -> prepare("INSERT INTO  test  (uid,name) VALUES('?','?')");

$num = 12;

$hanzi = "xiha";

$prepare -> bind_param('is',$num,$hanzi);



$prepare -> execute();

test表字段，uid int(11) name varchar(30)

Warning: mysqli_stmt::bind_param() [function.mysqli-stmt-bind-param]: Number of variables doesn't match number of parameters in prepared statement in
[解决办法]
已经解决了