Flash tutorial package download Using PHP to implement the secret card function implementation code

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Secret card storage

Copy code The code is as follows:

$this->load->model('admin/m_mibao');
$data = array() ;
//Generate random abscissa
$rand_str = $this->_rand_str(10);
$arr = array();
for($k=0;$k{
for ($i = 1;$i < 9;$i++)
{
$rand = $this->_rand_num(3);
//Container assigned to all codes
$arr[$rand_str {$k} . $i] = $rand;
}
}
$data['code'] = serialize($arr); //Put the information into the database after serialization
$data['letter'] = $ rand_str;
//Avoid duplicate serial numbers
while (TRUE)
{
$data['card_num'] = $this->_rand_num(20);
//Determine whether the serial number is repeated
if($this- >m_mibao->has_card_num($data['card_num']) == 0)
{
break;
}
}
$data['add_time'] = TIME;
$data['user_id'] = $ uid;
echo $this->mibao->insert($data);

Secret card image generation

Copy the code The code is as follows:

//It is to calculate the coordinates
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('This user has no password!','admin-index');
}
$codes = unserialize($info['code']);
// Initial value of image
$bit = 3; //Number of security card digits
$height = 332; //Image height
$width = 626; //Image width
$im = imagecreatetruecolor($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)); //Picture background color
$font = './public/baomi/fonts/simsun.ttc'; //Font
$font_en = './public/baomi /fonts/CONSOLA.TTF'; //English font
$font2 = './public/baomi/fonts/simhei.ttf'; //Bold font above the security card
$dst = imagecreatefromjpeg("./public/baomi/ 120.jpg");
imagecopymerge($im,$dst,120,15,0,0,193,55,100);
imageline($im,10,72,$width-10,72,$linecolor);
$ltext = "Electronic Security Card";
if(!imagettftext($im,10,0,340,47,$logo_str_color,$font2,$ltext)) {
exit('error');
}
//Write the card number
$b = '1000' . $info['card_num'];
for($i=0;$i<7;$i++){
$p.= substr($b,3*$i,4) . ' ';
}
$x = 40; $y = 95; //Serial number position
imagettftext($im,10,0,$x,$y,$color,$font,'serial number');
imagettftext($im,11,0,$x+50,$y,$color,$font_en,$p);
//Color box
imagefilledrectangle($im,10,106,$width-10,128,$top_rectangle_color);
imagefilledrectangle($im,10,129,65,$height-10,$left_rectangle_color);
//Write the top row of English letters and vertical lines
for($i=1;$i<=10;$i++){
$x = $i*55+35; $y = 123; $float_size = 11; //Letter position parameters
imagettftext($im,$float_size,0,$x,$y,$top_letter_color,$font_en,$info ['letter']{$i-1});//Write the top English letter
}
for($i=0;$i<=9;$i++){
$linex = $i*55+ 65; $liney = 105; $liney2 = $height-10; //Vertical line position parameter
imageline($im,$linex,$liney,$linex,$liney2,$linecolor);//Draw in the vertical line
}
//Write vertical numbers and fill in matrix data with horizontal lines
for($j=0;$j<8;$j++){
$jj=$j+1;
$x=35; $ y=($jj*24)+123; //Left row of numbers and horizontal line position parameters
imagettftext($im, $float_size, 0, $x, $y, $left_num_color, $font_en, $jj);// Write the numbers in the left row
for($i=1;$i<=10;$i++){
$float_size2=11; $x = $i*55+27; $sy=$y; //Fill in the matrix Data position parameter
$s = $info['letter']{$i-1};
$s .= $j + 1;
imagettftext($im,$float_size2,0,$x,$sy,$fontcolor ,$font_en,$codes[$s]);//Write matrix data
}
}
for($j=0;$j<10;$j++){
$line_x=10; $line_x2=$width -10;$y=$j*24+105; //Horizontal line position parameter y coordinate data is the same as above
imageline($im,$line_x,$y,$line_x2,$y,$linecolor);//Draw into the horizontal line Line
}
//Outer frame border
imageline($im,10,10,$width-10,10,$linecolor);//Horizontal line
//imageline($im,10,$height-10,$ width-10,$height-10,$linecolor);
imageline($im,10,10,10,$height-10,$linecolor);//Vertical line
imageline($im,$width-10,10 ,$width-10,$height-10,$linecolor);
//Generate image
ob_clean();
header("Content-type: image/jpeg");
imagejpeg($im,null,100);
imagedestroy($im);
}

Security card verification

Copy code The code is as follows:

public function test1($uid)
{
$this->load->model('admin/m_users');
$user = $this->m_users->sel($uid);
//Post is submitted for verification
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('correct');
}
else
{
die('wrong');
}
}
else
{
//Render view
$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);
}

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