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mysql operation class
<?php
class db
{
        var $db;
        var $position=0;
        function sub_sql($str)
        {
                global $prefix;
                return str_replace("detest_",$prefix,$str);
        }
        function Sql($str)
        {
                $str=$this->sub_sql($str);
                $result = mysql_query($str);
                $i=0;
                while($row = mysql_fetch_array($result))
                {
                        $str_array[$i]=$row;
                        $i++;
                }
                if(empty($str_array))
                {
                        $str_array=array();
                }
                $this->db=$str_array;
        }

This is a MYSQL database operation class. Friends can download it and use it.

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