PHPデータベースの操作とデータベース接続のチュートリアル

<?php
include_once "mmysql.php";
$configArr = array(&#39;host&#39;=>&#39;localhost&#39;,&#39;port&#39;=>&#39;3306&#39;,&#39;user&#39;=>&#39;root&#39;,&#39;passwd&#39;=>&#39;root&#39;,&#39;dbname&#39;=>&#39;abcd&#39;);//这是连接数据库的操作
$mysql = new MMysql($configArr);
//插入的数值
$data = array(
    &#39;sid&#39;=>104,
    &#39;aa&#39;=>123456,
    &#39;bbc&#39;=>&#39;aaaaaaaaaaaaaa&#39;,
);
$arr = $mysql->insert(&#39;t_table&#39;,$data);//插入执行

//判断执行是否成功
if($arr){
    echo "插入成功";
}else{
    echo "插入失败";
}

//查询
$res = $mysql->field(array(&#39;sid&#39;,&#39;aa&#39;,&#39;bbc&#39;))
    ->order(array(&#39;sid&#39;=>&#39;desc&#39;,&#39;aa&#39;=>&#39;asc&#39;))
    ->where(array(&#39;sid&#39;=>"101",&#39;aa&#39;=>array(&#39;123455&#39;,&#39;>&#39;,&#39;or&#39;)))
    ->limit(1,2)
    ->select(&#39;t_table&#39;);
$res = $mysql->field(&#39;sid,aa,bbc&#39;)
    ->order(&#39;sid desc,aa asc&#39;)
    ->where(&#39;sid=101 or aa>123455&#39;)
    ->limit(1,2)
    ->select(&#39;t_table&#39;);

//获取最后执行的sql语句
$sql = $mysql->getLastSql();

//直接执行sql语句
$sql = "show tables";
$res = $mysql->doSql($sql);


//事务
$mysql->startTrans();
$mysql->where(array(&#39;sid&#39;=>102))->update(&#39;t_table&#39;,array(&#39;aa&#39;=>666666));
$mysql->where(array(&#39;sid&#39;=>103))->update(&#39;t_table&#39;,array(&#39;bbc&#39;=>&#39;呵呵8888呵呵&#39;));
$mysql->where(array(&#39;sid&#39;=>104))->delete(&#39;t_table&#39;);
$mysql->commit();