DOMDocument, grab several values on a website - php

Question

How can I get several values on a website using PHP (the value between div tags, value1, value2, value3 in the example below)?
I have been looking into DOMDocument, but getting confused.
Also, will it be possible to get the values without loading the website 3 times?
Example.
I need to get 3 values (or more) from a website:
<div class="SomeUniqueClassName">value1</div>
<div class="AnotherUniqueClassName">value2</div>
<div class="UniqueClassName">value3</div>
This is what I have now, but it looks stupid and i'm not 100% sure what i'm doing:
$doc = new DOMDocument;
$doc->loadHTMLFile($url);
$xpath = new DOMXPath($doc);
$query1 = "//div[#class='SomeUniqueClassName']";
$query2 = "//div[#class='AnotherUniqueClassName']";
$query3 = "//div[#class='UniqueClassName']";
$entry1 = $xpath->query($query1);
$value 1 = var_dump($entry1->item(0)->textContent);
$entry2 = $xpath->query($query2);
$value 2 = var_dump($entry2->item(0)->textContent);
$entry3 = $xpath->query($query3);
$value 3 = var_dump($entry3->item(0)->textContent);

Answer 1

You should use CURL for this :
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL,'http://theurlhere.com');
//Optional, if the target URL use SSL
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1);
$parse = curl_exec($curl);
curl_close($curl);
preg_match_all('/<div class="uniqueClassName([0-9])">(.*)<\/div>/', $parse, $value);
print_r($value);

Answer 2

With the XPath expression you could try using the "contains" qualifier and look for the unique class if it follows your example
$dom = new DOMDocument;
$dom->loadHTMLFile( $url );
$xp = new DOMXPath( $dom );
$query="//div[ contains( #class,'UniqueClass' ) ]";
$col=$xp->query( $query );
if( $col && $col->length > 0 ){
foreach( $col as $node ){
echo $node->item(0)->nodeValue;
}
}
Or modify the XPath expression to search for multiple conditions, like:
$query="//div[#class='UniqueClass1'] | //div[#class='UniqueClass2'] | //div[#class='UniqueClass3']";
$col=$xp->query( $query );
if( $col && $col->length > 0 ){
foreach( $col as $node ){
echo $node->item(0)->nodeValue;
}
}