如何使用 PHP 替换 @font-face src 的所有 url

Question

I'm currently using a subdomain to store some files and, with that, I needed to change the links of several elements. One of these changes includes the url of fonts.

@font-face{
    font-family:eicons;
    src:url(//fonts/eicons.eot?5.10.0);
    src:url(//fonts/eicons.eot?5.10.0#iefix) format("embedded-opentype"),
    url(//fonts/eicons.woff2?5.10.0) format("woff2"),
    url(//fonts/eicons.woff?5.10.0) format("woff"),
    url(//fonts/eicons.ttf?5.10.0) format("truetype"),
    url(//fonts/eicons.svg?5.10.0#eicon) format("svg");font-weight:400;font-style:normal
}

All the css referring to the fonts are stored in tags on the pages themselves, not in an external.css file.

I'm trying to make the switch using the following regex and preg_replace

$doc = new DomDocument();
$xpath = new DOMXPath($doc);

$regex_patern = "/url\((.*?)fonts/";
$doc = preg_replace($regex_patern, 'url(https://subdomain.domain.com/fonts', $doc);
echo $doc->saveHTML();

Unfortunately it ends up returning in the critical error.

How should i fix?

Answer 1

I would like to do it differently, but the only way I found it was extracting the nodevalue (all text) from the tag, inserting the content into a documentfragment, changing it to the desired value and replacing the original value.

$font_url_query = $xpath->query('//text()[contains(., "//fonts/")]');
foreach($font_url_query as $font_url) {
    $regex_patern = "/url\((.*?)fonts/";
    $replaced = preg_replace($regex_patern, 'url(https://subdomain.domain.com/fonts', $font_url->wholeText);
    $newNodeLink  = $doc->createDocumentFragment();
    $newNodeLink->appendXML($replaced);
    $font_url->parentNode->replaceChild($newNodeLink, $font_url);
}