@Immutable
    public static String lcfirst(String value) {
        if (value.isEmpty())
            return "";

        return Character.toLowerCase(value.charAt(0)) + value.substring(1);
    }
Parses the cslashes bitmap returning an actual bitmap.

@param charset the bitmap string

@return the actual bitmap
exts/jphp-zend-ext/src/main/java/org/develnext/jphp/zend/ext/standard/StringFunctions.java