Remove <p> </p> with DOM or regex
Question
How can I remove this type p tag <p> </p> using DOM or regex?
I want to remove multiple p like this too,
<p> </p>
<p> </p>
<p> </p>
3 answers
solution1
5 ACCPTED 2011-07-23 17:17:56
If you want to remove a string that is exactly, always, '<p> </p>' , the simplest and fastest solution is probably to use str_replace() :
$new_string = str_replace('<p> </p>', '', $old_string);
I don't think it's necessary to use DOM for such a simple case -- and a regex is not necessary here.
Of course, if you need to replace something more complex, that is not always exactly the same string... well, it'll be time for DOM manipulations ;-)
solution2
0 2011-07-23 17:17:33
preg_replace("|<p> </p>|", "", "<p> </p>
<p> </p>
<p> </p>");
solution3
0 2011-07-23 17:46:05
In case you would like to do that with xpath (your example is just demanding str_replace however), you can query the   entity as a string ( Demo ):
$html = '<body><p> </p>
<p> </p>
<p> </p>
<p>Not empty :)</p>
</body>';
$dom = new DomDocument();
$dom->loadhtml($html);
$xpath = new DomXPath($dom);
$col = $xpath->query("//p[text()=\"\xC2\xA0\"]"); #
foreach($col as $e) {
$e->parentNode->removeChild($e);
}
echo $dom->saveXML($dom->getElementsByTagName('body')->item(0));
Hope this is helpful if you need to query with xpath.
See as well: Using XPATH to search text containing
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