- var_dump: documentation ( source)
- filter_var: documentation ( source)
- htmlentities: documentation ( source)
- ini_get: documentation ( source)
<?php
$STRING = "1 2";
var_dump(
htmlentities($STRING, ENT_QUOTES, ini_get('default_charset'), false),
filter_var($STRING, FILTER_SANITIZE_FULL_SPECIAL_CHARS)
);