PHP学习-PHP操作MYSQL

$con_1 = mysql_connect("DB_server_IP", "account_name", "password");

//创建数据库服务器连接

if(!$con_1){die('Could not connect: ' . mysql_error());}

mysql_select_db("DB_Name", $con_1);

//选择数据库

$sql="INSERT INTO table_name (key1, key2)

VALUES

('value1','value2')";

if(!mysql_query($sql,$con_1)){die('Error: ' . mysql_error());}

mysql_close($con_1);

$con_2 = mysql_connect("DB_server_IP", "account_name", "password");

if(!$con_2){die('Could not connect: ' . mysql_error());}

mysql_select_db("DB_Name", $con_2);

$result = mysql_query("SELECT * FROM table_name");

while($row=MySQL_fetch_array($result)){

$arr[]=$row;}

//将从数据库读取的数据赋给$row

header('Content-type:application/json');

echo json_encode($arr);//设置输出格式