I’m a little confused by html entity encoding [closed]

So I know this

string HTML entities ( string $string [, int $flags = ENT_COMPAT | ENT_HTML401 [, string $encoding = ini_get("default_charset") [, bool $double_encode = true ]]] )

is supposed to encode HTML entities but I can’t seem to get it to work. So basically what I’m trying to ask is, can someone please explain to me how to use this?

The page on PHP’s website isn’t making much sense to me.

Answer

You can use below example

$str = "Jane & 'Tarzan'";
echo htmlspecialchars($str, ENT_COMPAT); // Will only convert double quotes

$str = 'I love "PHP".';
echo htmlspecialchars($str, ENT_QUOTES); // Converts double and single quotes