php - DomDocument and special characters

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php - DomDocument and special characters

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

php - DomDocument and special characters

This is my code:

$oDom = new DOMDocument();
$oDom->loadHTML("èàéìòù");
echo $oDom->saveHTML();

This is the output:

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html><body><p>&Atilde;&uml;&Atilde;&nbsp;&Atilde;&copy;&Atilde;&not;&Atilde;&sup2;&Atilde;&sup1;</p></body></html>

I want this output:

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html><body><p>èàéìòù</p></body></html>

I've tried with ...

$oDom = new DomDocument('4.0', 'UTF-8');

or with 1.0 and other stuffs but nothing.

Another thing ... There is a way to obtain the same untouched HTML? For example with this html in input <p>hello!</p> obtain the same output <p>hello!</p> using DOMDocument only for parsing the DOM and to do some substitutions inside the tags.

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1 Answer

深蓝 · Answer 1 · 2021-10-23T18:40:17+0000

Solution:

$oDom = new DOMDocument();
$oDom->encoding = 'utf-8';
$oDom->loadHTML( utf8_decode( $sString ) ); // important!

$sHtml = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">';
$sHtml .= $oDom->saveHTML( $oDom->documentElement ); // important!

The saveHTML() method works differently specifying a node. You can use the main node ($oDom->documentElement) adding the desired !DOCTYPE manually. Another important thing is utf8_decode(). All the attributes and the other methods of the DOMDocument class, in my case, don't produce the desired result.

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