I have this html code:
hello
How can I remove attributes from all tags? I'd like it to look like this:
hello
asked Jun 11, 2010 at 20:43
0
Adapted from my answer on a similar question
$text = 'hello
';
echo preg_replace["/]*?[\/?]>/si",'', $text];
// hello
The RegExp broken down:
/ # Start Pattern
< # Match '', Zero or More times, not-greedy [wont eat the /]
[\/?] # Capture Group $2 - '/' if it is there
> # Match '>'
/is # End Pattern - Case Insensitive & Multi-line ability
Add some quoting, and use the replacement text it should strip any text after the tagname until the end of tag /> or just >.
Please Note This isn't necessarily going to work on ALL input, as the Anti-HTML + RegExp will tell you. There are a few fallbacks, most notably "> would end up
T.Todua
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answered Jun 11, 2010 at 21:02
gnarfgnarf
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8
Here is how to do it with native DOM:
$dom = new DOMDocument; // init new DOMDocument
$dom->loadHTML[$html]; // load HTML into it
$xpath = new DOMXPath[$dom]; // create a new XPath
$nodes = $xpath->query['//*[@style]']; // Find elements with a style attribute
foreach [$nodes as $node] { // Iterate over found elements
$node->removeAttribute['style']; // Remove style attribute
}
echo $dom->saveHTML[]; // output cleaned HTML
If you want to remove all possible attributes from all possible tags, do
$dom = new DOMDocument;
$dom->loadHTML[$html];
$xpath = new DOMXPath[$dom];
$nodes = $xpath->query['//@*'];
foreach [$nodes as $node] {
$node->parentNode->removeAttribute[$node->nodeName];
}
echo $dom->saveHTML[];
eozzy
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answered Jun 11, 2010 at 21:38
GordonGordon
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6
I would avoid using regex as HTML is not a regular language and instead use a html parser like Simple HTML DOM
You can get a list of attributes that the object has by using attr. For example:
$html = str_get_html['World'];
var_dump[$html->find["div", 0]->attr]; /
/*
array[1] {
["id"]=>
string[5] "hello"
}
*/
foreach [ $html->find["div", 0]->attr as &$value ]{
$value = null;
}
print $html
//World
answered Jun 11, 2010 at 20:44
YacobyYacoby
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0
$html_text = 'Hello world. Its beautiful day.
';
$strip_text = strip_tags[$html_text, ''];
$result = preg_replace['/]*>/', '', $strip_text];
echo $result;
// Result
string 'Hello world. Its beautiful day.'
answered May 24, 2014 at 11:26
1
Another way to do it using php's DOMDocument class [without xpath] is to iterate over the attributes on a given node. Please note, due to the way php handles the DOMNamedNodeMap class, you must iterate backward over the collection if you plan on altering it. This behaviour has been discussed elsewhere and is also noted in the documentation comments. The same applies to the DOMNodeList class when it comes to removing or adding elements. To be on the safe side, I always iterate backwards with these objects.
Here is a simple example:
function scrubAttributes[$html, $attributes = []] {
$dom = new DOMDocument[];
$dom->loadHTML[$html, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD];
for [$els = $dom->getElementsByTagname['*'], $i = $els->length - 1; $i >= 0; $i--] {
for [$attrs = $els->item[$i]->attributes, $ii = $attrs->length - 1; $ii >= 0; $ii--] {
$els->item[$i]->removeAttribute[$attrs->item[$ii]->name];
}
}
return $dom->saveHTML[];
}
Here's a demo: //3v4l.org/G8VPg
answered Jan 15, 2021 at 18:10
Eaten by a GrueEaten by a Grue
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Optimized regular expression from the top rated answer on this issue:
$text = 'a is less than b: a
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