使用PHP实现密保卡功能

网络整理 - 08-05

密保卡入库

    $this->load->model('admin/m_mibao');

    $data = array();
    //生成随机横坐标
    $rand_str = $this->_rand_str(10);

    $arr   = array();
    for($k=0;$k<strlen($rand_str);$k++)
    {
        for ($i = 1;$i < 9;$i++)
        {
            $rand = $this->_rand_num(3);
            //赋给所有code的容器
            $arr[$rand_str{$k} . $i] = $rand;
        }
    }

    $data['code']     = serialize($arr); //序列化后将信息入库
    $data['letter']   = $rand_str;

    //避免重复序列号
    while (TRUE)
    {
            $data['card_num'] = $this->_rand_num(20);
            //判断序列号是否重复存在
        if($this->m_mibao->has_card_num($data['card_num']) == 0)
        {
            break;
        }
    }

    $data['add_time'] = TIME;
    $data['user_id'] = $uid;

    echo $this->mibao->insert($data);

　　密保卡图片生成

    //就是算坐标
           public function show($user_id)
    {
        $this->load->model('admin/m_mibao');
        $info = $this->m_mibao->get_by_uid($user_id);
        if(emptyempty($info))
        {
            $this->msg('该用户无密保卡!','admin-index');
        }

        $codes = unserialize($info['code']);

        //图片初始值

        $bit = 3; //密保卡位数

        $height = 332;    //图片高度

        $width = 626;    //图片宽度

        $im = imagecreatetruecolor($width,$height);

        $linecolor = imagecolorallocate($im, 229,229,229);

        $fontcolor = imagecolorallocate($im, 0, 0, 0);

        $top_rectangle_color = imagecolorallocate($im,241,254,237);

        $top_letter_color = imagecolorallocate($im,54,126,76);

        $left_rectangle_color = imagecolorallocate($im,243,247,255);

        $left_num_color = imagecolorallocate($im,4,68,192);

        $logo_str_color = imagecolorallocate($im,0,0,0);

        imagefill($im,0,0,imagecolorallocate($im,255,255,255)); //图片背景色

        $font    = './public/baomi/fonts/simsun.ttc'; //字体

        $font_en = './public/baomi/fonts/CONSOLA.TTF'; //英文字体

        $font2   = './public/baomi/fonts/simhei.ttf'; //密保卡上方黑体


        $dst = imagecreatefromjpeg("./public/baomi/120.jpg");



        imagecopymerge($im,$dst,120,15,0,0,193,55,100);

        imageline($im,10,72,$width-10,72,$linecolor);

        $ltext = "电子密保卡";

        if(!imagettftext($im,10,0,340,47,$logo_str_color,$font2,$ltext)) {
            exit('error');
        }

        //写入卡号

        $b = '1000' . $info['card_num'];

        for($i=0;$i<7;$i++){

            $p.= substr($b,3*$i,4). ' ';

        }

        $x = 40; $y = 95; //序列号位置

        imagettftext($im,10,0,$x,$y,$color,$font,'序列号');

        imagettftext($im,11,0,$x+50,$y,$color,$font_en,$p);

        //颜色框

        imagefilledrectangle($im,10,106,$width-10,128,$top_rectangle_color);

        imagefilledrectangle($im,10,129,65,$height-10,$left_rectangle_color);

        //写入最上排英文字母及竖线

        for($i=1;$i<=10;$i++){

            $x = $i*55+35;      $y = 123;    $float_size = 11;   //字母位置参数

            imagettftext($im,$float_size,0,$x,$y,$top_letter_color,$font_en,$info['letter']{$i-1});//写入最上排英文字母

        }

        for($i=0;$i<=9;$i++){

            $linex = $i*55+65;    $liney = 105;    $liney2 = $height-10; //竖线位置参数

            imageline($im,$linex,$liney,$linex,$liney2,$linecolor);//划入竖线

        }



        //写入竖排数字及填入矩阵数据划横线

        for($j=0;$j<8;$j++){

            $jj=$j+1;

            $x=35; $y=($jj*24)+123; //左排数字及横线位置参数

            imagettftext($im, $float_size, 0, $x, $y, $left_num_color, $font_en, $jj);//写入左排数字

            for($i=1;$i<=10;$i++){

                $float_size2=11; $x = $i*55+27; $sy=$y; //填入矩阵数据位置参数

               $s = $info['letter']{$i-1};
               $s .= $j + 1;
               imagettftext($im,$float_size2,0,$x,$sy,$fontcolor,$font_en,$codes[$s]);//写入矩阵数据

            }
        }

        for($j=0;$j<10;$j++){

            $line_x=10; $line_x2=$width-10;$y=$j*24+105; //横线位置参数 y坐标数据同上

            imageline($im,$line_x,$y,$line_x2,$y,$linecolor);//划入横线

        }

        //外框边线

        imageline($im,10,10,$width-10,10,$linecolor);//横线

        //imageline($im,10,$height-10,$width-10,$height-10,$linecolor);

        imageline($im,10,10,10,$height-10,$linecolor);//竖线

        imageline($im,$width-10,10,$width-10,$height-10,$linecolor);

        //生成图片

        ob_clean();
        header("Content-type: image/jpeg");
        imagejpeg($im,null,100);
        imagedestroy($im);
    }

　　密保卡验证

    public function test1($uid)
    {

        $this->load->model('admin/m_users');
        $user = $this->m_users->sel($uid);

        //post提交过来验证
        if($this->is_post())
        {
            $codes = $this->m_mibao->get_codes_by_uid($uid);
            $codes = unserialize($codes);

            $is_true = true;
            foreach($_SESSION['mibao']['keys'] as $key)
            {
                if($codes[$key] != $_POST['values'][$key])
                {
                    $is_true = false;
                }
            }

            if($is_true)
            {
                die('正确');
            }
            else
            {

                die('错误');
            }
        }
        else
        {
            //渲染视图
            $info = $this->m_mibao->get_by_uid($uid);
            $data = array();
            $data['keys'] = $this->m_mibao->get_rand_keys($info['letter']);
            $_SESSION['mibao']['keys'] = $data['keys'];
            $data['uid'] = $uid;
            $this->load->view('test1',$data);
        }