diff options
Diffstat (limited to 'system/helpers/captcha_helper.php')
| -rw-r--r-- | system/helpers/captcha_helper.php | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/system/helpers/captcha_helper.php b/system/helpers/captcha_helper.php index b11670658..3aac14db8 100644 --- a/system/helpers/captcha_helper.php +++ b/system/helpers/captcha_helper.php @@ -32,7 +32,7 @@ * @subpackage Helpers * @category Helpers * @author EllisLab Dev Team - * @link http://codeigniter.com/user_guide/helpers/xml_helper.html + * @link http://codeigniter.com/user_guide/helpers/captcha_helper.html */ // ------------------------------------------------------------------------ @@ -64,7 +64,7 @@ if ( ! function_exists('create_captcha')) } } - if ($img_path == '' OR $img_url == '' + if ($img_path === '' OR $img_url === '' OR ! @is_dir($img_path) OR ! is_writeable($img_path) OR ! extension_loaded('gd')) { @@ -80,8 +80,7 @@ if ( ! function_exists('create_captcha')) $current_dir = @opendir($img_path); while ($filename = @readdir($current_dir)) { - if ($filename !== '.' && $filename !== '..' && $filename !== 'index.html' - && (str_replace('.jpg', '', $filename) + $expiration) < $now) + if (substr($filename, -4) === '.jpg' && (str_replace('.jpg', '', $filename) + $expiration) < $now) { @unlink($img_path.$filename); } @@ -93,7 +92,7 @@ if ( ! function_exists('create_captcha')) // Do we have a "word" yet? // ----------------------------------- - if ($word == '') + if ($word === '') { $pool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; $word = ''; @@ -156,7 +155,7 @@ if ( ! function_exists('create_captcha')) // Write the text // ----------------------------------- - $use_font = ($font_path != '' && file_exists($font_path) && function_exists('imagettftext')); + $use_font = ($font_path !== '' && file_exists($font_path) && function_exists('imagettftext')); if ($use_font === FALSE) { $font_size = 5; @@ -186,7 +185,6 @@ if ( ! function_exists('create_captcha')) } } - // Create the border imagerectangle($im, 0, 0, $img_width - 1, $img_height - 1, $border_color); |