学习了php中如何建立与数据库的连接以及执行sql语句
$servername = "localhost";$username = "root";$password = "";$dbname = "hsq_first"; //表名$row; ???$sql1 = "select * from student "; $conn = mysqli_connect($servername , $username , $password, $dbname); //建立与数据库hsq_first的连接$result = mysqli_query($conn , $sql1); ?//执行sql语句 ???while ($row = mysqli_fetch_array($result)) ?//把查询的结果（行）返回给变量$row ???echo $row[‘name‘]."<br>". $row[‘id‘]. "<br>". $row[‘gender‘]."<br>";?>
几个常用操作数据库函数：
mysqli_connect(...) 建立与数据库的连接
mysqli_num_rows(...)返回查找到的行数
mysqli_fetch_arrays(...)将查找到的信息以数组的形式返回
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原文地址：http://www.cnblogs.com/hhssqq9999/p/7650862.html