Comments on: How to strip invalid XML characters

By: Antonio Lagnada

Antonio Lagnada — Wed, 18 Mar 2009 19:48:55 +0000

String str = “contains invalid chars”;
String stripped = str.replaceAll(“[^\\u0009\\u000a\\u000d\\u0020-\\ud7ff\\e0000-\\ufffd]“, “”)

By: Ben Christensen

Ben Christensen — Sun, 17 Aug 2008 01:14:02 +0000

The original is Java code. Thank you for the code you provided!

By: anthony

anthony — Sat, 16 Aug 2008 23:52:51 +0000

there is something broken about this comment posting script, that code, is _not_ what I posted

By: anthony

anthony — Sat, 16 Aug 2008 23:51:24 +0000

I’ll try one more time, cut my post short last time, if it doesn’t work this time… oh well.

function strip_invalid_xml_chars2( &$in )
{
$out = “”;
$length = strlen($in);
for ( $i = 0; $i = 0×20 && $current = 0xE000 && $current = 0×10000 && $current <= 0x10FFFF):
// valid so leave “as is”
break;
default:
// invalid, so we set this char to a space
$in[$i] = ” “;
break;
}
}
// NOTE: doesn’t return a value as we worked purely on
// the string passed by reference, so don’t try catching a return value
}

By: anthony

anthony — Sat, 16 Aug 2008 23:49:15 +0000

I assume that comment was a PHP version, so you want something like this:
/**
* Strip bad xml chars
* @author phpzone
* @param string $in String passed by reference
* phpzone.co.uk
*/
function strip_invalid_xml_chars2( &$in )
{
$out = “”;
$length = strlen($in);
for ( $i = 0; $i = 0×20 && $current = 0xE000 && $current = 0×10000 && $current

By: ransom

ransom — Wed, 04 Jun 2008 18:11:16 +0000

/**
* Strip bad xml chars
* @author james ransom 2008
* yuku.com
*/
function strip_invalid_xml_chars2( $in )
{

$out = “”;

$length = strlen($in);

for ( $i = 0; $i = 0×20)
&& ($current = 0xE000) &&
($current = 0×10000) && ($current <= 0x10FFFF)))
{
$out .= chr($current);
}
else
{
$out .= ” “;
}

}

return $out;

}