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
– Marc B, Commented Jan 10, 2013 at 18:18

19greg96 · Accepted Answer · 2019-01-30 20:47:35Z

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, 2019 at 20:47

answered Jan 10, 2013 at 18:14

19greg96

2,5915 gold badges43 silver badges56 bronze badges

Sign up to request clarification or add additional context in comments.

5 Comments

Chris Over a year ago

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.

19greg96 Over a year ago

that is very interesting. I tried the code my self and got the same results as you did. Looking further into it.

19greg96 Over a year ago

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]")

Chris Over a year ago

Hey, please see edit above, it seems there is still one problem.

19greg96 Over a year ago

Updated answer, might be better answer somewhere but I couldn't find it.

Paramjeet · Accepted Answer · 2016-01-10 12:30:29Z

1

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);

answered Jan 10, 2016 at 12:30

Paramjeet

3361 gold badge5 silver badges19 bronze badges

Comments

user1765447 · Accepted Answer · 2013-10-02 16:30:19Z

0

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

or

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

answered Oct 2, 2013 at 16:30

user1765447

11

1 Comment

Mr Davros Over a year ago

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')

pguardiario · Accepted Answer · 2019-01-30 23:46:49Z

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, 2019 at 23:46

pguardiario

55.2k21 gold badges130 silver badges169 bronze badges

Collectives™ on Stack Overflow

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

EDIT

4 Answers 4

5 Comments

Comments

1 Comment

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

EDIT

4 Answers 4

5 Comments

Comments

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related