I am loading external HTML content into a variable like this:
$content = file_get_contents('http://localhost');
The page has a set of loops of <ul>
like this:
<ul class="items-list">
<li>Title1</li>
<li>Description1</li>
<li>Location1</li>
</ul>
<!-- OTHER CONTENT HERE BETWEEN THE UL AND THE PRICE DIV -->
<a href="#">
<div class="item-price">£10</div>
<a/>
<ul class="items-list">
<li>Title2</li>
<li>Description2</li>
<li>Location2</li>
</ul>
<!-- OTHER CONTENT HERE BETWEEN THE UL AND THE PRICE DIV -->
<a href="#">
<div class="item-price">£15</div>
</a>
<ul class="items-list">
<li>Title3</li>
<li>Description3</li>
<li>Location3</li>
</ul>
<!-- OTHER CONTENT HERE BETWEEN THE UL AND THE PRICE DIV -->
<a href="#">
<div class="item-price">£20</div>
</a>
<ul class="items-list">
<li>Title4</li>
<li>Description4</li>
<li>Location4</li>
</ul>
<!-- OTHER CONTENT HERE BETWEEN THE UL AND THE PRICE DIV -->
<a href="#">
<div class="item-price">£25</div>
</a>
I have the following code that uses DOMXPath to search for all the items-list UL's and then I can loop through it and echo it.
$dom = new DomDocument();
$dom->loadHTML($content);
$xpath = new DOMXPath($dom);
$items = $xpath->query("//ul[@class='items-list']");
foreach ($items as $node) {
echo $node->textContent;
}
This work's perfectly. However, I need help displaying the price of each one of these loops which comes from the div class called item-price which is after the UL but not immediately after.
How can I do this?
使用以下兄弟轴
$xpath->query("//ul[@class='items-list']/following-sibling::div[@class='item-price']");
Using the original query combined with a following-sibling
operator perhaps will suffice.
define('BR','<br />');
$strhtml='<ul class="items-list">
<li>Title1</li>
<li>Description1</li>
<li>Location1</li>
</ul>
<!-- OTHER CONTENT HERE BETWEEN THE UL AND THE PRICE DIV -->
<div class="item-price">£10</div>
<ul class="items-list">
<li>Title2</li>
<li>Description2</li>
<li>Location2</li>
</ul>
<!-- OTHER CONTENT HERE BETWEEN THE UL AND THE PRICE DIV -->
<div class="item-price">£15</div>
<ul class="items-list">
<li>Title3</li>
<li>Description3</li>
<li>Location3</li>
</ul>
<!-- OTHER CONTENT HERE BETWEEN THE UL AND THE PRICE DIV -->
<div class="item-price">£20</div>
<ul class="items-list">
<li>Title4</li>
<li>Description4</li>
<li>Location4</li>
</ul>
<!-- OTHER CONTENT HERE BETWEEN THE UL AND THE PRICE DIV -->
<div class="item-price">£25</div>';
$dom = new DomDocument();
$dom->loadHTML( $strhtml );
$xpath = new DOMXPath( $dom );
$items = $xpath->query("//ul[@class='items-list'] | //ul[@class='items-list']/following-sibling::div[@class='item-price']");
if( $items && $items->length > 0 ){
foreach ( $items as $node ) {
echo $node->textContent . BR;
}
}
The above outputs
Title1 Description1 Location1
£10
Title2 Description2 Location2
£15
Title3 Description3 Location3
£20
Title4 Description4 Location4
£25
Given the change to the html content a minor modification to the XPath query is required as the div containing the prices is no longer a direct sibling - though it could be.
$items = $xpath->query("//ul[@class='items-list'] | //ul[@class='items-list']/following::div[@class='item-price']");
foreach ($items as $node) {
echo $node->textContent;
$div = $xpath->query('.//following::div[@class="item-price"][1]', $node);
echo $div[0]->nodeValue ."\n\n";
}
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