- substr: documentation ( source)
- preg_match: documentation ( source)
<?php
$html = <<<EOT
//Find:
<img src="icons/google-icon.svg" >
//Replace to:
<img src="{{asset('icons/google-icon.svg')}}" >
//Find:
<link href="css/style.css">
//Replace to:
<link href="{{asset('css/style.css')}}">
/** etc... */
<a href="http://www.example.com">
EOT;
$doc = new DOMDocument();
$doc->loadHTML("<div>$html</div>", LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
$xpath = new DOMXPath($doc);
foreach ($xpath->query('//img') as $img) {
$src = $img->getAttribute('src');
if (preg_match('/^(?!{{\s*asset).*$/', $src, $m)) {
$img->setAttribute('src', "{{asset('" . $m[0] . ")'}}");
}
}
foreach ($xpath->query('//link') as $link) {
$href = $link->getAttribute('href');
if (preg_match('/^(?!{{\s*asset).*$/', $href, $m)) {
$link->setAttribute('href', "{{asset('" . $m[0] . ")'}}");
}
}
// strip XML header and added <div> tag
echo substr($doc->saveXML(), 44, -7);