diff options
Diffstat (limited to 'system/helpers')
| -rw-r--r-- | system/helpers/array_helper.php | 2 | ||||
| -rw-r--r-- | system/helpers/captcha_helper.php | 37 |
2 files changed, 7 insertions, 32 deletions
diff --git a/system/helpers/array_helper.php b/system/helpers/array_helper.php index 881f57db3..a454f936d 100644 --- a/system/helpers/array_helper.php +++ b/system/helpers/array_helper.php @@ -25,8 +25,6 @@ * @filesource */ -// ------------------------------------------------------------------------ - /** * CodeIgniter Array Helpers * diff --git a/system/helpers/captcha_helper.php b/system/helpers/captcha_helper.php index 40b6e5b23..89bff2366 100644 --- a/system/helpers/captcha_helper.php +++ b/system/helpers/captcha_helper.php @@ -67,7 +67,9 @@ if ( ! function_exists('create_captcha')) } } - if ($img_path == '' OR $img_url == '' OR ! @is_dir($img_path) OR ! is_writeable($img_path) OR ! extension_loaded('gd')) + if ($img_path == '' OR $img_url == '' + OR ! @is_dir($img_path) OR ! is_writeable($img_path) + OR ! extension_loaded('gd')) { return FALSE; } @@ -98,11 +100,10 @@ if ( ! function_exists('create_captcha')) if ($word == '') { $pool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; - $word = ''; for ($i = 0, $mt_rand_max = strlen($pool) - 1; $i < 8; $i++) { - $word .= substr($pool, mt_rand(0, $mt_rand_max), 1); + $word .= $pool[mt_rand(0, $mt_rand_max)]; } } @@ -110,46 +111,32 @@ if ( ! function_exists('create_captcha')) // ----------------------------------- // Determine angle and position // ----------------------------------- - $length = strlen($word); $angle = ($length >= 6) ? rand(-($length-6), ($length-6)) : 0; $x_axis = rand(6, (360/$length)-16); $y_axis = ($angle >= 0) ? rand($img_height, $img_width) : rand(6, $img_height); - // ----------------------------------- // Create image - // ----------------------------------- - // PHP.net recommends imagecreatetruecolor(), but it isn't always available - if (function_exists('imagecreatetruecolor')) - { - $im = imagecreatetruecolor($img_width, $img_height); - } - else - { - $im = imagecreate($img_width, $img_height); - } + $im = function_exists('imagecreatetruecolor') + ? imagecreatetruecolor($img_width, $img_height) + : imagecreate($img_width, $img_height); // ----------------------------------- // Assign colors // ----------------------------------- - $bg_color = imagecolorallocate ($im, 255, 255, 255); $border_color = imagecolorallocate ($im, 153, 102, 102); $text_color = imagecolorallocate ($im, 204, 153, 153); $grid_color = imagecolorallocate($im, 255, 182, 182); $shadow_color = imagecolorallocate($im, 255, 240, 240); - // ----------------------------------- // Create the rectangle - // ----------------------------------- - ImageFilledRectangle($im, 0, 0, $img_width, $img_height, $bg_color); // ----------------------------------- // Create the spiral pattern // ----------------------------------- - $theta = 1; $thetac = 7; $radius = 16; @@ -173,7 +160,6 @@ if ( ! function_exists('create_captcha')) // ----------------------------------- // Write the text // ----------------------------------- - $use_font = ($font_path != '' AND file_exists($font_path) AND function_exists('imagettftext')) ? TRUE : FALSE; if ($use_font == FALSE) @@ -206,29 +192,20 @@ if ( ! function_exists('create_captcha')) } - // ----------------------------------- // Create the border - // ----------------------------------- - imagerectangle($im, 0, 0, $img_width-1, $img_height-1, $border_color); // ----------------------------------- // Generate the image // ----------------------------------- - $img_name = $now.'.jpg'; - ImageJPEG($im, $img_path.$img_name); - $img = "<img src=\"$img_url$img_name\" width=\"$img_width\" height=\"$img_height\" style=\"border:0;\" alt=\" \" />"; - ImageDestroy($im); return array('word' => $word, 'time' => $now, 'image' => $img); } } -// ------------------------------------------------------------------------ - /* End of file captcha_helper.php */ /* Location: ./system/helpers/captcha_helper.php */ |