使用PHP实现密保卡功能

　　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);
    }