an enhanced captcha as helper

[eluser]JP X3M[/eluser]
[quote author="krz" date="1211289719"]I followed the example above with the following code. It doesnt seem to work for me. I dont even get a print_r() !

My directory structure is as follows:

img_path = http://localhost/Paradise Calling/common/captcha/
img_url = http://localhost/Paradise Calling/common/captcha/
font_path = http://localhost/Paradise Calling/application/fonts/

Am I supposed to add place an image in one of those dirs or something?

The captcha helper is located at: http://localhost/Paradise Calling/application/helpers/

[/quote]
if it may help to know that i am using YATS and here is my configuration

Code:

$aCaptchaCfg = array(
          //'word'          => 'myrandomword',                        //default: random()
          'length'        => 6,                                       //default: 5
          'img_path'   => './assets/captcha/files/',                  //no default !
          'img_url'       => site_url().'assets/captcha/files/',      // no default!
          'font_path'  => './assets/captcha/fonts/',                  // default: ./system/fonts/
          'fonts'         => array('corsiva.ttf', 'TSCu_Comic.ttf'),  // default: texb.ttf
          'font_size'     => 13,                                      // default: 18
          'img_width'  => '150',                                      // default: 170
          'img_height' => '50',                                       // default: 60
          'expiration' => 360                                         // default: 7200
        );

i forgot what i did to make it work when i had the same problem...

try to make a folder to hold the generated captchas (in my case a folder named files) and chmod it to 777

and check for the height spelling in your helper (though having the spelling wrong only ignores your height in the config array).