php数据访问的
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> </head> <body> <?php //建一个连接，造一个连接对象 $db = new MySQLi("localhost","root","123","mydb"); //判断是否出错 /*if(mysqli_connect_error()) { echo "连接失败！"; exit; }*/ mysqli_connect_error()?die("连接失败"):""; //写SQL语句 $sql = "select * from Info"; //执行SQL语句，返回结果集对象 $reslut = $db->query($sql); //从结果集中读取数据,返回数组 //$attr = $reslut->fetch_all(); //读取所有数据，返回索引二维数组 //$attr = $reslut->fetch_array(); //读取当前指针指向的数据，返回索引关联都存在的数组 //$attr = $reslut->fetch_assoc(); //返回关联数组 //$attr = $reslut->fetch_row(); //返回索引数组 //$attr = $reslut->fetch_object(); //返回对象 /*$arr = array(); while($attr = $reslut->fetch_row()) { array_push($arr,$attr); } var_dump($arr);*/ ?> </body> </html>
下面是另一个
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> </head> <body> <?php //造连接对象 $db = new MySQLi("localhost","root","123","mydb"); //写SQL语句 $sql = "insert into info values('p003','张三','1','n001','1990-2-3')"; //执行SQL语句 $result = $db->query($sql); /*if($result) { echo "执行成功！"; } else { echo "执行失败！"; }*/ //$result->fetch_row(); ?> </body> </html>
