代码$link = @mysqli_connect('localhost', 'root', '1') or exit('数据库连接失败');说法不对的是( )。 A. “@”用于屏蔽函数的错误信息 B. “or”是比较运算符,只有左边表达式的值为 false 时,才会执行右边的表达式 C. “exit()”用于停止脚本,同时可以输出错误信息 D. 也可以用mysqli_conne...
$connect = mysqli_connect("host","user","password","db") or die("Error " . mysqli_error($connect)); $result = mysql_query('select * from admin',$connnet); print(mysql_num_rows($result)); mysql_close(); 报错: Warning: mysql_query(): supplied argument is not a valid MySQL-...
<?php$link = mysqli_connect("localhost", "my_user", "my_password", "world");/* check connection */if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit();}mysqli_query($link, "CREATE TABLE myCity LIKE City");/* a remarkable long city ...
首先要检查你的数据库账号密码是否正确，要查询的表里是否有数据示例代码如下：//假定数据库用户名：root，密码：123456，数据库：database$link=mysqli_connect("localhost","root","123456","database");if (mysqli_connect_errno($link)){echo "连接 MySQL 失败: " . mysqli_connect_error();...
;extension=php_mysqli.dll前的“;”去掉即为开启该扩展 5、在E:/Code/PHP/下创建一t.php文件,内容为 AI检测代码解析 <?php phpinfo(); ?> 1. 2. 3. 然后在浏览器地址栏中输入http://localhost:81/t.php 看到如下图示信息表示配置成功(注:图中框起来的地方要格外注意 看信息是否可以出来) ...
$link = mysqli_connect('192.168.0.91', 'root', '123', 'xxx'); $rec = mysqli_query($link, 'select id from doc_admin'); $this->data = mysqli_fetch_all($rec, MYSQLI_ASSOC); } //1 重置迭代器 public function rewind()
if (mysqli_connect_errno($conn)) { die("连接 MySQL 失败: " . mysqli_connect_error()); }else{ echo("<b>"."数据库连接:SUCCESS!"."</b>"); echo "<br/>"; echo "<b>"."当前系统时间为:".date('Y-m-d H:i:s', time())."</b>"; ...
$link = mysqli_connect('localhost', 'webqin.net', 'tpxhwxteF6NnhA2i', 'oupaibojing'); mysqli_query($link,"INSERT INTO `jh_act_order` (`order_no`, `name`, `mobile`,`pay_time`,`status`) VALUES ('".$out_trade_no."', '".$name."', '".$mobile."', '".$pay_time."'...
Here is what you should do: $result = mysqli_connect($localhost,$username,$password,$database); You need to include the host,username,password and database for the query to work correctly. I use $result, allthough I do not believe you have to. Good Luck, Sean...
private $mysqli; private $result; /** * 数据库连接 * @param $config 配置数组 */ public function connect() { $config=array( 'host'=>'127.0.0.1', 'username'=>'root', 'password'=>'168168', 'database'=>'test', 'port'=>3306, ...