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msheath · 06-26-2016, 02:24 PM

I am testing Captcha and my code is like this:

Code:
$this->load->helper('captcha');

$vals = array(

        'word'          => mt_rand (100000,1000000),

        'img_path'      => './public/captcha/',

        'img_url'       => base_url().'public/captcha/'

 );

$cap = create_captcha($vals);

echo $cap['image'];die();

This works OK but if the 'word' line is commented out I get a php error Undefined variable: word_length
although the User Guide says 'If a word is not supplied, the function will generate a random ASCII string.' Is this a bug or have I made a mistake in the coding?