Php – DOMXpath – Get href attribute and text value of an a element

domxpathphpxpath

So I have a HTML string like this:

<td class="name">
   <a href="/blah/somename23123">Some Name</a>
</td>
<td class="name">
   <a href="/blah/somename28787">Some Name2</a>
</td>

Using XPath I'm able to get value of href attribute using this Xpath query:

 $domXpath = new \DOMXPath($this->domPage);
 $hrefs = $domXpath->query("//td[@class='name']/a/@href");
 foreach($hrefs as $href) {...}

And It's even easier to get a text value, like this:

 // Xpath auto. strips any html tags so we are 
 // left with clean text value of a element
 $domXpath = new \DOMXPath($this->domPage);
 $names = $domXpath->query("//td[@class='name']/");
 foreach($names as $name) {...}

Now I'm curious to know, how can I combine those two queries to get both values with only one query (If it's something like that even posible?).

Best Solution

Fetch

//td[@class='name']/a

and then pluck the text with nodeValue and the attribute with getAttribute('href').

Apart from that, you can combine Xpath queries with the Union Operator | so you can use

//td[@class='name']/a/@href|//td[@class='name']

as well.

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Php – Get the first element of an array

Original answer, but costly (O(n)):

array_shift(array_values($array));

In O(1):

array_pop(array_reverse($array));

Other use cases, etc...

If modifying (in the sense of resetting array pointers) of $array is not a problem, you might use:

reset($array);

This should be theoretically more efficient, if a array "copy" is needed:

array_shift(array_slice($array, 0, 1));

With PHP 5.4+ (but might cause an index error if empty):

array_values($array)[0];

Php – DomXPath with DOMDocument to get Class URL

$dom = new DOMDocument();
$dom->loadHTML($x);

$xpath = new DomXpath($dom);
$imgs  = $xpath->query('//*[@class="productImage"]');

foreach($imgs as $img)
{
    echo 'ImgSrc: ' . $img->getAttribute('src') .'<br />' . PHP_EOL;
}

Try that...

== EDIT: Additional Info ==

The reason I use a loop here is because you may find more than one img. If you know there is only one element (or you want the first dom node found) you can access the elelement from the domnodelist via the item method of domnodelist - like so:

$dom = new DOMDocument();
$dom->loadHTML($x);

$xpath = new DomXpath($dom);
$img   = $xpath->query('//*[@class="productImage"]');

echo 'ImgSrc: ' . $img->item(0)->getAttribute('src') .'<br />' . PHP_EOL;

Best Solution

Related Solutions

Php – Get the first element of an array

Php – DomXPath with DOMDocument to get Class URL

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