Use PHP to implement the secret card function to implement code < package download Direct run >_php tips

Effect Chart:

Secret Security card Storage

Copy Code code as follows:

$this->load->model (' Admin/m_mibao ');
$data = Array ();
Generating Random Horizontal
$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);
A container assigned to all code
$arr [$rand _str{$k}. $i] = $rand;
}
}
$data [' code '] = serialize ($arr); Storing information after serialization
$data [' letter '] = $rand _str;
Avoid duplicate serial numbers
while (TRUE)
{
$data [' card_num '] = $this->_rand_num (20);
Determine if serial numbers are repeated
if ($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 picture Generation

Copy Code code as follows:

It's 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 (' The user has no secret security card! ', ' admin-index ');
}
$codes = Unserialize ($info [' Code ']);
Picture Initial value
$bit = 3; Number of secret-keeping cards
$height = 332; Picture height
$width = 626; Picture 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 fonts
$font 2 = './public/baomi/fonts/simhei.ttf '; Top Black in secret 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);
$ltext = "Electronic secret security card";
if (!imagettftext ($im, 10,0,340,47, $logo _str_color, $font 2, $ltext)) {
Exit (' Error ');
}
Write card number
$b = ' 1000 '. $info [' Card_num '];
For ($i =0 $i <7; $i + +) {
$p. = substr ($b, 3* $i, 4). ' ';
}
$x = 40; $y = 95; Serial number Location
Imagettftext ($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, $left _rectangle_color);
Write top English letters and vertical lines
For ($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 top English letters
}
For ($i =0 $i <=9; $i + +) {
$linex = $i *55+65; $liney = 105; $liney 2 = $height-10; Vertical position parameter
Imageline ($im, $linex, $liney, $linex, $liney 2, $linecolor);//Vertical bar
}
Write vertical numbers and fill in matrix data dashes
For ($j =0 $j <8; $j + +) {
$JJ = $j +1;
$x = 35; $y = ($jj *24) +123; Left row digit and horizontal line position parameter
Imagettftext ($im, $float _size, 0, $x, $y, $left _num_color, $font _en, $JJ);/write left row number
For ($i =1 $i <=10; $i + +) {
$float _size2=11; $x = $i *55+27; $sy = $y; Fill in the Matrix data location parameters
$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 = $j *24+105; Horizontal line position parameter y-coordinate data ditto
Imageline ($im, $line _x, $y, $line _x2, $y, $linecolor);/Dash line
}
Outer border
Imageline ($im, 10,10, $width -10,10, $linecolor);/Horizontal Line
Imageline ($im, $height -10, $width -10, $height -10, $linecolor);
Imageline ($im, 10,10,10, $height -10, $linecolor);//Vertical bar
Imageline ($im, $width -10,10, $width -10, $height -10, $linecolor);
Generate pictures
Ob_clean ();
Header ("Content-type:image/jpeg");
Imagejpeg ($im, null,100);
Imagedestroy ($im);
}

Secret Security card Verification

Copy Code code as follows:

Public function test1 ($UID)
{
$this->load->model (' admin/m_users ');
$user = $this->m_users->sel ($uid);
Post submit 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 (' Error ');
}
}
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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