PDO操做MySQL 執行寫操做與讀操做

<?php   header('content-type:text/html;charset=utf-8');   //PDO操做MySQL   //1)鏈接認證   $pdo=new PDO("mysql:host=localhost;port=3306;dbname=test","root","root");   //2)執行寫操做     //增長$sql="insert into demo

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