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<?php $STRING = "1&nbsp;2"; var_dump( htmlentities($STRING, ENT_QUOTES, ini_get('default_charset'), false), filter_var($STRING, FILTER_SANITIZE_FULL_SPECIAL_CHARS) );
Output for git.master, git.master_jit, rfc.property-hooks
string(8) "1&nbsp;2" string(8) "1&nbsp;2"

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