Regexp php html

Question

Here is a part from my html string.

<span class="price">£ 343</span>
// Some html code
<span class="price" id="old-price-22898">£ 343</span>
</p><p class="special-price">
<span class="price" id="product-price-22898"> £ 274</span>

What I want is to get all the prices.

So I tried this regexp :

<span class=\"price\"(.*)>(.*)<\/span>

which makes sense to me, but I only get the price between <span class="price"> and not the prices between the <span> with ids.

Any help ?

Better not parse HTML with regexps http://stackoverflow.com/questions/1732348/regex-match-open-tags-except-xhtml-self-contained-tags/1732454#1732454 — user4035, Jul 07 '14 at 11:40
You should work out better question titles. Just throwing a few tags into the title won't be helpful for further use. — pdu, Jul 07 '14 at 11:50

user1978142 · Answer 1 · 2014-07-07T12:07:02.687

1

Alternatively, you could also use DOMDocument with xpath. Consider this example:

$html_string = '<span class="price">£ 343</span><span class="price" id="old-price-22898">£ 343</span></p><p class="special-price"><span class="price" id="product-price-22898"> £ 274</span>';
$html_string = mb_convert_encoding($html_string, 'html-entities', 'utf-8'); 
$dom = new DOMDocument('1.0', 'UTF-8');
$dom->substituteEntities = TRUE;
libxml_use_internal_errors(true);
$dom->loadHTML($html_string);
libxml_clear_errors();
$xpath = new DOMXpath($dom);
$prices = array();
foreach($xpath->query('//*[@class="price"]') as $price) {
    $prices[] = $price->nodeValue;
}

echo '<pre>';
print_r($prices);

Output:

Array
(
    [0] => £ 343
    [1] => £ 343
    [2] =>  £ 274
)

edited Jul 07 '14 at 12:07

answered Jul 07 '14 at 11:53

user1978142

7,946
3
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weird, why does this code print Â before the pound symbol on my machine? I am using Windows 7, php file is in utf8 encoding. – user4035 Jul 07 '14 at 11:59
@user4035 i think this is an issue about encoding, check my revision – user1978142 Jul 07 '14 at 12:01
works correctly now :) – user4035 Jul 07 '14 at 12:03
`mb_convert_encoding($html_string, 'utf-8', mb_detect_encoding($html_string))` can be safely removed - it doesn't do anything, if the file is stored in utf-8. – user4035 Jul 07 '14 at 12:05

Avinash Raj · Accepted Answer · 2014-07-07T12:55:42.870

0

Below regex would capture the id's and prices in <span class="price"> tag and <span> tag.

<span class=\".*?(?:(id=[^>]*))?>\s*([^<]*)\s*

DEMO

edited Jul 07 '14 at 12:55

answered Jul 07 '14 at 11:37

Avinash Raj

172,303
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274

It does not give me the span without id :/ – user3812188 Jul 07 '14 at 12:12
@user3812188 how about this http://regex101.com/r/rM6tS5/3 ? – Avinash Raj Jul 07 '14 at 12:14

Regexp php html

2 Answers2