php convert words with spaces to camelcase
public static function camelCase($str, array $noStrip = [])
{
// non-alpha and non-numeric characters become spaces
$str = preg_replace('/[^a-z0-9' . implode("", $noStrip) . ']+/i', ' ', $str);
$str = trim($str);
// uppercase the first character of each word
$str = ucwords($str);
$str = str_replace(" ", "", $str);
$str = lcfirst($str);
return $str;
}