$color = imagecolorallocate($image, 255, 122, 56);
imagefilledellipse($image, $x, $y, $size, $size, $color);
}
function drawCircles($image)
{
$max = 12;
$min = 2;
$gap = $max - $min;
$total = getTotalElements();
$result = getCoords();
foreach ($result as $row) {
drawCircle($image, $row['x'], $row['y'], $min + $gap * ($row['total'] / $total));
}
}
function getTotalElements()
{
$result = Db::getInstance()->executeS('SELECT COUNT(`id_address`) as total FROM `' . _DB_PREFIX_ . 'address` WHERE deleted = 0 AND id_customer IS NOT NULL AND id_customer != 0');
return isset($result[0]) ? $result[0]['total'] : 0;
}
function getCoords()
{
return Db::getInstance(_PS_USE_SQL_SLAVE_)->executeS('SELECT `x`, `y`, COUNT(`id_address`) AS total
FROM `' . _DB_PREFIX_ . 'address` a
LEFT JOIN `' . _DB_PREFIX_ . 'location_coords` lc ON lc.`id_country`=a.`id_country`
WHERE deleted = 0 AND id_customer IS NOT NULL AND id_customer != 0
GROUP BY a.`id_country`
ORDER BY `total` DESC');
}
$image = loadBaseImage($img_path);
drawCircles($image);
drawImage($image);
//create the image
$img = imagecreatetruecolor(getConfig("CAPTCHA_WIDTH"), getConfig("CAPTCHA_HEIGHT"));
$clr1 = explode(",", getConfig("CAPTCHA_BG_COLOR"));
$clr2 = explode(",", getConfig("CAPTCHA_FONT_COLOR"));
$clr3 = explode(",", getConfig("CAPTCHA_OTHERS_COLOR"));
//set white background color,black text color,grey graphics
$bg_color = imagecolorallocate($img, $clr1[0], $clr1[1], $clr1[2]);
$text_color = imagecolorallocate($img, $clr2[0], $clr2[1], $clr2[2]);
$graphics_color = imagecolorallocate($img, $clr3[0], $clr3[1], $clr3[2]);
//image fill the background
imagefilledrectangle($img, 0, 0, getConfig("CAPTCHA_WIDTH"), getConfig("CAPTCHA_HEIGHT"), $bg_color);
//draw pass phrase
imagettftext($img, getConfig("CAPTCHA_FONTSIZE"), getConfig("CAPTCHA_ANGLE"), getConfig("CAPTCHA_OFFSET"), getConfig("CAPTCHA_HEIGHT") - 6, $text_color, $font, $phrase);
drawDots($img, $graphics_color);
drawLines($img, $graphics_color);
drawCircles($img, $graphics_color);
// prevent client side caching
header("Expires: Wed, 1 Jan 1997 00:00:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Content-Transfer-Encoding: binary");
header("Pragma: no-cache");
header("Content-type:image/png");
imagepng($img);
imagedestroy($img);
//clean up memory
ob_flush();
exit;
function drawDots($img, $graphics_color)
{