/**
* @param string $input
*
* @return bool
*/
function wpml_is_valid_hex_color($input)
{
if ('transparent' === $input || preg_match('/' . wpml_get_valid_hex_color_pattern() . '/i', $input)) {
$is_valid = true;
} else {
$try_rgb2hex = rgb_to_hex($input);
$is_valid = $try_rgb2hex ? preg_match('/' . wpml_get_valid_hex_color_pattern() . '/i', $try_rgb2hex) : false;
}
return $is_valid;
}
function get_color_values($image)
{
$image_x = imagesx($image);
$image_y = imagesy($image);
$hex_array = array();
for ($x = 0; $x < $image_x; $x++) {
for ($y = 0; $y < $image_y; $y++) {
$color = imagecolorat($image, $x, $y);
$red = $color >> 16 & 0xff;
$green = $color >> 8 & 0xff;
$blue = $color & 0xff;
$hex = rgb_to_hex(array($red, $green, $blue));
array_push($hex_array, $hex);
}
}
return $hex_array;
}
/**
* @param array $rgb
*
* @return string
*/
function rgb_array_to_hex(array $rgb)
{
return rgb_to_hex($rgb['r'], $rgb['g'], $rgb['b']);
}
/**
* Convert RGB To HEX
*
* @return string
*/
private function rgbToHex()
{
return rgb_to_hex($this->red, $this->green, $this->blue);
}