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_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); 
    }