• 数据库连接和定义


    class opmysqli{
        private $host = '127.0.0.1';            //服务器地址
        private $name = 'root';                    //登录账号
        private $pwd = '111';                    //登录密码
        private $dBase = 'db_blog';                //数据库名称
        private $conn = '';                        //数据库链接资源
        private $result = '';                    //结果集
        private $msg = '';                        //返回结果
        private $fields;                        //返回字段
        private $fieldsNum = 0;                    //返回字段数
        private $rowsNum = 0;                    //返回结果数
        private $filesArray = array();            //返回字段数组
        private $rowsArray = array();            //返回结果数组
        //初始化类
        function __construct($host='',$name='',$pwd='',$dBase=''){
            if($host != '')
                $this->host = $host;
            if($name != '')
                $this->name = $name;
            if($pwd != '')
                $this->pwd = $pwd;
            if($dBase != '')
                $this->dBase = $dBase;
            $this->init_conn();
        }
        //链接数据库
        function init_conn(){
            $this->conn=mysqli_connect($this->host,$this->name,$this->pwd,$this->dBase);
            mysqli_query($this->conn,"set names gb2312");
        }
        //查询结果
        function mysqli_query_rst($sql){
            if($this->conn == ''){
                $this->init_conn();
            }
            $this->result = @mysqli_query($this->conn,$sql);
        }
        //取得字段数 
        function getFieldsNum($sql){
            $this->mysqli_query_rst($sql);
            $this->fieldsNum = @mysqli_num_fields($this->result);
        }
        //取得查询结果数
        function getRowsNum($sql){
            $this->mysqli_query_rst($sql);
            $this->rowsNum = @mysqli_num_rows($this->result);
            return $this->rowsNum;
        }
        //取得记录数组(多条记录)
        function getRowsArray($sql){
            $this->mysqli_query_rst($sql);
            while($row = mysqli_fetch_array($this->result,MYSQLI_ASSOC)) {
                $this->rowsArray[] = $row;
               }
            return $this->rowsArray;
        }
        //更新、删除、添加记录数
        function uidRst($sql){
            if($this->conn == ''){
                $this->init_conn();
            }
            @mysqli_query($this->conn,$sql);
            $this->rowsNum = @mysqli_affected_rows($this->conn);
            return $this->rowsNum;
        }
        //获取对应的字段值
        function getFields($sql,$fields){
            $this->mysqli_query_rst($sql);
            if(mysqli_num_rows($this->result) > 0){
                $tmpfld = mysqli_fetch_row($this->result);
                $this->fields = $tmpfld[$fields];
            }
            return $this->fields;
        }
        
        //错误信息
        function msg_error(){
            if(mysqli_errno() != 0) {
                $this->msg = mysqli_error();
            }
            return $this->msg;
        }
        //释放结果集
        function close_rst(){
            //mysqli_free_result($this->result);
            $this->msg = '';
            $this->fieldsNum = 0;
            $this->rowsNum = 0;
            $this->filesArray = '';
            $this->rowsArray = '';
        }
        //关闭数据库
        function close_conn(){
            $this->close_rst();
            mysqli_close($this->conn);
            $this->conn = '';
        }
    }
    $conne = new opmysqli();
    ?>
    <?php
        define('PATH',$_SERVER['DOCUMENT_ROOT']);                //服务器目录
        define('ROOT','/TM/06/');                            //博客目录
        define('ADMIN','admin/');                                //后台目录
        define('PIC','center/pics/image/');                                    //上传图片目录
        define('BAK','sqlbak/');                                //备份目录
        define('HEADGIF','headgif/');                            //头像目录
        define('mysqliPATH','C:\AppServ\MySQL\bin\');            //mysqli执行文件路径
        define('mysqliHOST','localhost');                        //mysqli服务器ip
        define('mysqliDATA','db_blog');                            //mysqli数据库
        define('mysqliUSER','root');                                //mysqli账号
        define('mysqliPWD','111');                                //mysqli密码
        $picpostfix = array('image/gif','image/pjpeg','image/bmp');    //允许上传的图片后缀
        define('MAXSIZEPIC',500000);                        //允许上传的图片的最大字节数
    ?>
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  • 原文地址:https://www.cnblogs.com/mengluo/p/4790148.html
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