In my code, I have
$document = DomDocument->loadHTML($someHTML);
$xPath = new DOMXPath($document);
//
//do some xpath query and processing
//
$result = $document->saveHTML();
The html I am processing contains :
<html>
<body>
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height:
normal;text-autospace:none"><b><span style='font-size:9.0pt;font-family:"ArialNarrow","sans-serif";
color:red'> </span></b></p>
</body>
</html>
and results in:
<html>
<body>
<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height:
normal;text-autospace:none"><b><span style='font-size:9.0pt;font-family:"ArialNarrow","sans-serif";
color:red'> </span></b></p>
</body>
</html>
How do I prevent from getting converted to blank space?
replace with &nbsp; then when the htmlDom doc is read it will return
$someHTML = str_replace (' ', '@nbsp;', $someHTML);
$document = DomDocument->loadHTML($someHTML);
$xPath = new DOMXPath($document);
//
//do some xpath query and processing
//
$result = $document->saveHTML();
$result = str_replace ('@nbsp;', ' ', $result);
来源：https://stackoverflow.com/questions/10114627/domdocument-savehtml-converting-nbsp-to-space