use session in captcha key in codeIgniter - Printable Version +- CodeIgniter Forums (https://forum.codeigniter.com) +-- Forum: Archived Discussions (https://forum.codeigniter.com/forumdisplay.php?fid=20) +--- Forum: Archived Development & Programming (https://forum.codeigniter.com/forumdisplay.php?fid=23) +--- Thread: use session in captcha key in codeIgniter (/showthread.php?tid=32715) |
use session in captcha key in codeIgniter - El Forum - 08-01-2010 [eluser]Volkscom[/eluser] Hi, I'm trying to include my own captcha generation function in codeIgniter.In that I'm using session for storing the code.But it is not working properly My controller contains: class Reg_controller extends Controller{ function index(){ $this->load->library('session'); $this->load->helper(array("form","html","url",'email')); $this->load->library('form_validation'); $this->load->language('registration'); $this->load->view('tocheck'); } function captchakey(){ $this->load->helper(array("form","html","url")); include('/function_captcha.php'); print_captcha("5"); } } view contains: <?php echo form_fieldset('verification Details');?> <table> <tr><th colspan="2" align="center"> <?php echo form_label('Enter Verification Code');?> </th></tr> <tr><td colspan="2" align="center"> <?php /*$image_properties = array('src' => 'system/application/libraries/Gen_captcha.php', 'alt' => 'Verification code', 'width' => '120', 'height' => '40', "class"=>"frm" ); */ /*$image_properties = array('src' =>base_url().'index.php/reg_controller/captchakey', 'alt' => 'Verification code', 'width' => '120', 'height' => '40', "class"=>"frm" ); */ echo "<a href='".base_url()."index.php/reg_controller/captchakey"."'> <font color='red'>hi</font></a>"; //echo img($image_properties); ?> nbdbfjdj </td></tr> <tr><td> <?php echo form_label('Enter code');?><span class="star">*</span></td><td> <?php echo form_input( array('name'=> 'code', 'id'=>'code', "class"=>"frm" ));?><?php echo"<input type='hidden' name='utype' value='R' >";?> </td></tr> </table> <?php echo form_fieldset_close();?> function.captcha.php contains <?php session_start(); function print_captcha($length = 5) { $src = 'abcdefghjkmnpqrstuvwxyz123456789'; $srclen = strlen($src)-1; // what font file to use $font = '../../fonts/AppleGaramond.ttf'; // font size range, angle range, character padding $min_font_size = 10; $max_font_size = 20; $min_angle = -15; $max_angle = 15; // font character padding $char_padding = 1; $data = array(); $image_width = $image_height = 0; // write some data to the temp file // build the data array of the characters, size, placement, etc. $_SESSION['captcha'] = ''; for ($i=0; $i < $length; $i++) { $char = strtoupper(substr($src, mt_rand(0, $srclen), 1)); $_SESSION['captcha'] .= "$char"; $size = mt_rand($min_font_size, $max_font_size); $angle = mt_rand($min_angle, $max_angle); $bbox = imagettfbbox($size, $angle, $font, $char); $char_width = max($bbox[2],$bbox[4]) - min($bbox[0],$bbox[6]); $char_height = max($bbox[1],$bbox[3]) - min($bbox[7],$bbox[5]); $image_width += $char_width + $char_padding; $image_height = max($image_height, $char_height); $data[] = array('char' => $char, 'size' => $size, 'angle' => $angle, 'height' => $char_height, 'width' => $char_width,); } } If anybody Knows how to do this.Please Help me Thanks In Advance!... |