xml entities

[blackhorse]

When I use php to generate xml documents

I used this function from

http://us2.php.net/manual/en/function.htmlentities.php

function xml_character_encode($string, $trans='') {
  $trans = (is_array($trans)) ? $trans : get_html_translation_table(HTML_ENTITIES, ENT_QUOTES);
  foreach ($trans as $k=>$v)
    $trans[$k]= "&#".ord($k).";";

  return strtr($string, $trans);
}

To convert the value from database to use in xml document.

But it still leaves some strange characters in my xml document.

So I use the following funcition.

function convert_smart_quotes($string) 
{ 
   $search = array(
                '&',
                '<',
                '>',
                '"',
                chr(212),
                chr(213),
                chr(210),
                chr(211),
                chr(209),
                chr(208),
                chr(201),
                chr(145),
                chr(146),
                chr(147),
                chr(148),
                chr(151),
                chr(150),
                chr(133)
                );
	$replace = array(
                '&amp;',
                '&lt;',
                '&gt;',
                '&quot;',
                '‘',
                '’',
                '“',
                '”',
                '–',
                '—',
                '…',
                '‘',
                '’',
                '“',
                '”',
                '–',
                '—',
                '…'
                );

return str_replace($search, $replace, $string);
}

That seems taking care of the xml. But I am not sure if this function covers all

I would like to know is there a "near to official" xmlentities() function like htmlentities(), thanks!

I also found this

http://www.sourcerally.net/Scripts/39-Convert-HTML-Entities-to-XML-Entities

[Weedpacket]

The official XML entities are

&lt;      <
&gt;      >
&amp;     &
&apos;    '
&quot;    "

Any others depend on the particular XML doctype you're using. These three files list the declared entities for XHTML.

Numerical character references correspond to Unicode code points. [man]utf8_encode[/man]/[man]utf8_decode[/man] can be used for translating back and forth between UTF8-encoded Unicode and ISO-8859-1 (which is where the numbers you use in chr() are coming from).

[johanafm]

Personally I'd rather express it as cdata.