php操作mysql（一）

mysqli_connect

通过mysqli_connect新建数据库表。新建mysql.php,写入：

<?php
$dbhost = 'localhost';  // mysql服务器主机地址
$username = 'cs';            // mysql用户名
$dbpass = 'cs123456';          // mysql用户名密码
$dbname = 'cs'; //mysql数据库名
$conn = mysqli_connect($dbhost, $username, $dbpass,$dbname);
if(! $conn )
{
    die('连接失败: ' . mysqli_error($conn));
}
echo '连接成功<br />';
$sql = "CREATE TABLE cs( ".
        "id INT NOT NULL AUTO_INCREMENT, ".
        "name VARCHAR(100) NOT NULL, ".
        "age VARCHAR(40) NOT NULL, ".
        "date DATE, ".
        "PRIMARY KEY ( id ))ENGINE=InnoDB DEFAULT CHARSET=utf8; ";
mysqli_select_db( $conn, 'cs' );
$retval = mysqli_query( $conn, $sql );
if(! $retval )
{
    die('数据表创建失败: ' . mysqli_error($conn));
}
echo "数据表创建成功\n";
mysqli_close($conn); //断开连接
?>

mysqli_connect(host, username, password, dbname,port, socket);