| How to extract values from html code using php?
|
Thaparian
msg:4409568 | 6:44 am on Jan 22, 2012 (gmt 0) |
Hi,
I need to extract link url and image url from a peace of html code.
Sample HTML code
<a href="link to full size image"><img src="medium size image path here"/></a>
Or
<img src="medium size image path here" alt ="" />
If a link is present, I need the full size image url, otherwise I need the medium size image path.
This is the code that I made, but I think this is not the right way to get this done.
<?php
$test="html code here";
$doc=new DOMDocument();
$doc->loadHTML("$test");
$xml=simplexml_import_dom($doc);
$images=$xml->xpath('//img');
foreach ($images as $img) {
$thumburl = $img['src'];
}
$href = preg_match('/\shref="(?<href>[^"]+)"/', $test, $match);
if ($href!="") {
$href = $match[1];
echo $href;
}
else {
echo $thumburl;
}
?>
Please help.
|
brotherhood of LAN
msg:4409569 | 7:13 am on Jan 22, 2012 (gmt 0) |
It looks like you can avoid using regex in this example. Try this code.
<?php
$test="<a href=\"/path/to/somewhere\">test</a>
<a href=\"/path/to/blah\"><img src=\"/path/to/image\" /></a>";
$doc=new DOMDocument();
$doc->loadHTML($test);
// Get all <a> tags
$a = $doc->getElementsByTagName('a');
// Count of <a> tags
$alen = $a->length;
for($i = 0;$i < $alen;$i++)
{
// return href if it exists into $href
if($a->item($i)->hasAttribute('href'))
$href = $a->item($i)->getAttribute('href');
/*
return src attribute of image into $src if
1) parent element is <a>
2) element is <img>
3) src attribute exists
*/
if($a->item($i)->haschildNodes() &;&; $a->item($i)->firstChild->nodeName == 'img' &;&; $a->item($i)->firstChild->hasAttribute('src'))
$src = $a->item($i)->firstChild->getAttribute('src');
}
?>
You'll need to replace the &;&; with && as the syntax highlighter has altered it.
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