diff options
Diffstat (limited to 'user_guide_src/source/helpers/captcha_helper.rst')
| -rw-r--r-- | user_guide_src/source/helpers/captcha_helper.rst | 18 |
1 files changed, 4 insertions, 14 deletions
diff --git a/user_guide_src/source/helpers/captcha_helper.rst b/user_guide_src/source/helpers/captcha_helper.rst index be1b20aaf..f8d97596a 100644 --- a/user_guide_src/source/helpers/captcha_helper.rst +++ b/user_guide_src/source/helpers/captcha_helper.rst @@ -50,7 +50,8 @@ Once loaded you can generate a CAPTCHA like this:: echo $cap['image']; - The captcha function requires the GD image library. -- Only the **img_path** and **img_url** are required. +- The **img_path** and **img_url** are both required if you want to write images to disk. + To create ``data:image/png;base64`` images, simply omit these options. - If a **word** is not supplied, the function will generate a random ASCII string. You might put together your own word library that you can draw randomly from. @@ -89,10 +90,6 @@ Here is an example of usage with a database. On the page where the CAPTCHA will be shown you'll have something like this:: $this->load->helper('captcha'); - $vals = array( - 'img_path' => './captcha/', - 'img_url' => 'http://example.com/captcha/' - ); $cap = create_captcha($vals); $data = array( @@ -132,12 +129,9 @@ Available Functions The following functions are available: -.. php:function:: create_captcha([$data = ''[, $img_path = ''[, $img_url = ''[, $font_path = '']]]]) +.. php:function:: create_captcha($data) :param array $data: Array of data for the CAPTCHA - :param string $img_path: Path to create the image in (DEPRECATED) - :param string $img_url: URL to the CAPTCHA image folder (DEPRECATED) - :param string $font_path: Server path to font (DEPRECATED) :returns: array('word' => $word, 'time' => $now, 'image' => $img) :rtype: array @@ -155,14 +149,10 @@ The following functions are available: The **image** is the actual image tag:: - <img src="http://example.com/captcha/12345.jpg" width="140" height="50" /> + <img src="data:image/png;base64,RHVtbXkgZXhhbXBsZQ==" width="140" height="50" /> The **time** is the micro timestamp used as the image name without the file extension. It will be a number like this: 1139612155.3422 The **word** is the word that appears in the captcha image, which if not supplied to the function, will be a random string. - - .. note:: Usage of the ``$img_path``, ``$img_url`` and ``$font_path`` - parameters is DEPRECATED. Provide them in the ``$data`` array - instead. |