captcha )

Всем привет.

function create_captcha($data = '', $img_path = '', $img_url = '', $font_path = '')
{		
	$defaults = array('word' => '', 'img_path' => '', 'img_url' => '', 'img_width' => '150', 'img_height' => '30', 'font_path' => '', 'expiration' => 7200);		

	foreach ($defaults as $key => $val)
	{
		if ( ! is_array($data))
		{
			if ( ! isset($$key) OR $$key == '')
			{
				$$key = $val;
			}
		}
		else
		{			
			$$key = ( ! isset($data[$key])) ? $val : $data[$key];
		}
	}
	
	if ($img_path == '' OR $img_url == '')
	{
		return FALSE;
	}

	if ( ! @is_dir($img_path))
	{
		return FALSE;
	}
	
	if ( ! is_really_writable($img_path))
	{
		return FALSE;
	}
			
	if ( ! extension_loaded('gd'))
	{
		return FALSE;
	}		
	
	// ———————————–
	// Remove old images	
	// ———————————–
			
	list($usec, $sec) = explode(" ", microtime());
	$now = ((float)$usec + (float)$sec);
			
	$current_dir = @opendir($img_path);
	
	while($filename = @readdir($current_dir))
	{
		if ($filename != "." and $filename != ".." and $filename != "index.html")
		{
			$name = str_replace(".jpg", "", $filename);
		
			if (($name + $expiration) < $now)
			{
				@unlink($img_path.$filename);
			}
		}
	}
	
	@closedir($current_dir);

	// ———————————–
	// Do we have a "word" yet?
	// ———————————–
	
   if ($word == '')
   {
		$pool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';

		$str = '';
		for ($i = 0; $i < 8; $i++)
		{
			$str .= substr($pool, mt_rand(0, strlen($pool) -1), 1);
		}
		
		$word = $str;
   }
	
	// ———————————–
	// 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);
	}
			
	// ———————————–
	//  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;
	$circles	= 20;
	$points		= 32;

	for ($i = 0; $i < ($circles * $points) - 1; $i++)
	{
		$theta = $theta + $thetac;
		$rad = $radius * ($i / $points );
		$x = ($rad * cos($theta)) + $x_axis;
		$y = ($rad * sin($theta)) + $y_axis;
		$theta = $theta + $thetac;
		$rad1 = $radius * (($i + 1) / $points);
		$x1 = ($rad1 * cos($theta)) + $x_axis;
		$y1 = ($rad1 * sin($theta )) + $y_axis;
		imageline($im, $x, $y, $x1, $y1, $grid_color);
		$theta = $theta - $thetac;
	}

	// ———————————–
	//  Write the text
	// ———————————–
	
	$use_font = ($font_path != '' AND file_exists($font_path) AND function_exists('imagettftext')) ? TRUE : FALSE;
		
	if ($use_font == FALSE)
	{
		$font_size = 5;
		$x = rand(0, $img_width/($length/3));
		$y = 0;
	}
	else
	{
		$font_size	= 16;
		$x = rand(0, $img_width/($length/1.5));
		$y = $font_size+2;
	}

	for ($i = 0; $i < strlen($word); $i++)
	{
		if ($use_font == FALSE)
		{
			$y = rand(0 , $img_height/2);
			imagestring($im, $font_size, $x, $y, substr($word, $i, 1), $text_color);
			$x += ($font_size*2);
		}
		else
		{		
			$y = rand($img_height/2, $img_height-3);
			imagettftext($im, $font_size, $angle, $x, $y, $text_color, $font_path, substr($word, $i, 1));
			$x += $font_size;
		}
	}
	

	// ———————————–
	//  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);
}

теперь обращаюсь к ней function prova(){
$this->load->plugin('captcha');
$this->load->helper('url');
//$expiration = time()-300;
//$this->db->query("DELETE FRM captcha WHERE captcha_time < ".$expiration);


$vals = array(
'word' => 'Ran dom word',
'img_path' => './captcha/',
'img_url' =>'localhost/system/captcha/',
'font_path' => './system/fonts/texb.ttf',
'img_width' => '150',
'img_height' => '30',
'expiration' => '7200'
);

$cap = $this->create_captcha($vals);
print_r($cap); exit;
}
проблема собственно в том что результата нет!
Права стоят. Путь прописан…кто что могет подсказать?

http://www.codeproject.com/KB/web-security/captcha.aspx
кто нить такую капчу пробовал? желательно для ci)

ага) оно