PHP Simple HTML DOM Parser: Select only DIVs with multiple classes

Question

I was searching like mad and found no solution. The problem is simple.

Let's say I have 3 DIVs:

<div class="class1">
  <div class="subclass"> TEXT1 </div>
</div>

<div class="class2">
  <div class="subclass"> TEXT2 </div>
</div>

<div class="class1 class2">
  <div class="subclass"> TEXT3 </div>
</div>

So, very simple. I just want to find the TEXT3, which has BOTH class1 and class2. Using Simple HTML DOM Parser, I can't seem to get it to work.

Here's what I tried:

foreach($html->find("[class=class1], [class=class2]") as $item) {
$items[] =  $item->find('.subclass', 0)->plaintext;
}

The problem is, with

find("[class=class1], [class=class2]")

it's finding all of them, as the comma is like an OR, if I leave the comma, it's looking for nested class2 inside class1. I am just looking for an AND...

EDIT

Thanks to 19greg96 I found out that

div[class=class1 class2]

works, the problem is that it looks for exactly those two in that order. Let's say I have

<div class="class1 class2">
  <div class="subclass"> TEXT3 </div>
</div>

then it works, and if I have

<div class="class1 class2 class3">
  <div class="subclass"> TEXT3 </div>
</div>

it works when I put an asterix, as it looks for the substring:

div[class*=class1 class2]

PROBLEM

I know only that class1 and class3 is there, but maybe others and in random order. That still doesn't work. Any idea how to just look for A & B in any random order? So that

div[class=class1 class3]

works with that example?

You want specifically elements with both .class1 and .class2, or any element which has 2 or more of any class? — Marc B, Jan 10 '13 at 18:18

19greg96 · Accepted Answer · 2019-01-30T20:47:35.273

25

EDIT2: As this is a bug in the dom parser (tested on version 1.5), there is no simple way of doing this. Solution I could think of:

$find = $html->find(".class1");
$ret = array();
foreach ($find as $element) {
    if (strpos($element->class, 'class3') !== false) {
        $ret[] = $element;
    }
}
$find = $ret;

basically you find all the elements with class one than iterate through those elements to find the ones that have class two (in this case three).

Previous answer:

Simple answer (should work according to html spec):

find(".class1.class2")

this will look for any type of element (div,img,a etc..) that has both class1 and class2. If you want to specify the type of element to match add it to the beginning without a . like:

find("div.class1.class2")

If you have a space between the two specified classes it will match elements with both the classes or elements nested in the element with the first class:

find(".class1 .class2")

will match

<div class="class1">
  <div class="class2">this will be returned</div>
</div>

or

<div class="class1 class2">this will be returned</div>

edit: I tried your code and found that the solutions above do not work. The solution that does work however is as follows:

$html->find("div[class=class1 class2]")

edited Jan 30 '19 at 20:47

answered Jan 10 '13 at 18:14

19greg96

2,592
5
41
55

Thanks for you answer, but I tried it and it doesn't work with either example, .class1.class2 or div.class1.class2. It just finds nothing. – Chris Jan 10 '13 at 18:37
that is very interesting. I tried the code my self and got the same results as you did. Looking further into it. – 19greg96 Jan 10 '13 at 19:09
1

I think I found it, but it seems to me that the fact that `find(".class1.class2")` doesn't work might indicate a bug in the html parser. The solution that worked for me was `$html->find("div[class=class1 class2]")` – 19greg96 Jan 10 '13 at 19:15
Hey, please see edit above, it seems there is still one problem. – Chris Jan 11 '13 at 09:06
Updated answer, might be better answer somewhere but I couldn't find it. – 19greg96 Jan 11 '13 at 18:00

score 1 · Answer 2 · answered Jan 10 '16 at 12:30

You can also try this :

test.html

<h1 class="first second last">
    <p>Paragraph</p>
</h1>

Solution :

include "simple_html_dom.php";

$html = file_get_html('test.html');
$h1 = $html->find('h1');
foreach ($h1 as $h1) {
    $h1Class = ($h1->class);
    if($h1Class == 'first second last'){
        $item['test'] = 'success';
    }else{
        $item['test'] = 'fail';
    }
    $ar[] = $item;
}
echo "<pre>";
print_r($ar);

score 0 · Answer 3 · answered Oct 02 '13 at 16:30

0

$html->find(div[class=classname1], div[class=classname2]);

or

$html->find(div.classname1, div.classname2);

answered Oct 02 '13 at 16:30

user1765447

11

This is what worked for me - looking for children of a defined parent. i.e. $html->find('section.whatever div.classname1,section.whatever div.classname2') – Mr Davros Feb 12 '19 at 11:37

score 0 · Answer 4 · answered Jan 30 '19 at 23:46

0

I had thought simple html dom let you do:

$html->find(".class1.class2")

But I guess not. You can switch to this library if you want that.

answered Jan 30 '19 at 23:46

pguardiario

53,827
19
119
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PHP Simple HTML DOM Parser: Select only DIVs with multiple classes

EDIT

4 Answers4

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