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here's my code:
$myHtml = '
<div class="div-class">
<p>text</p>
<p><a href="#">text</a></p>
</div>
<ul class="some-class">
<li><a href="#" target="_blank" title="something something"><img src="" alt=""></a>
</li>
<li><a href="" target="_blank" title=""><img src="" alt=""></a>
</li>
<li><a href="" target="_blank" title=""><img src=""></a>
</li>
</ul>
';
$doc = new \DOMDocument();
$doc->loadHTML($myHtml, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
$xpath = new \DOMXPath($doc);
$anchors = $xpath->query("//a[@title='something something']");
$list = $xpath->query("//ul[@class='some-class']")[0];
foreach ($anchors as $a) {
$list->removeChild($a->parentNode);
}
var_dump($doc->saveHTML());
Essentially, I am trying to remove a list item that contains an anchor tag with a title of 'something something'. However, when I save the html after applying the changes, the list moves inside the div tag. Why would that occur? Thanks.
372
loadHTML() tries to correct syntaxis, and it doesn't like the ul element being parentless, so it moves it inside the div. If you wrap it all around a body tag, it'll work correctly.
loadHTML() actually automatically should do the wrapping for you were it necessary, but you set the LIBXML_HTML_NOIMPLIED flag, which disables this.
<?php
$myHtml = '
<html>
<body>
<div class="div-class">
<p>text</p>
<p><a href="#">text</a></p>
</div>
<ul class="some-class">
<li><a href="#" target="_blank" title="something something"><img src="" alt=""></a>
</li>
<li><a href="" target="_blank" title=""><img src="" alt=""></a>
</li>
<li><a href="" target="_blank" title=""><img src=""></a>
</li>
</ul>
</body>
</html>
';
$doc = new \DOMDocument();
$doc->loadHTML($myHtml, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
$xpath = new \DOMXPath($doc);
$anchors = $xpath->query("//a[@title='something something']");
$list = $xpath->query("//ul[@class='some-class']")[0];
foreach ($anchors as $a) {
$list->removeChild($a->parentNode);
}
var_dump($doc->saveHTML());
Demo
Or, without the LIBXML_HTML_NOIMPLIED flag:
<?php
$myHtml = '
<div class="div-class">
<p>text</p>
<p><a href="#">text</a></p>
</div>
<ul class="some-class">
<li><a href="#" target="_blank" title="something something"><img src="" alt=""></a>
</li>
<li><a href="" target="_blank" title=""><img src="" alt=""></a>
</li>
<li><a href="" target="_blank" title=""><img src=""></a>
</li>
</ul>
';
$doc = new \DOMDocument();
$doc->loadHTML($myHtml, LIBXML_HTML_NODEFDTD);
var_dump (libxml_get_errors());
$xpath = new \DOMXPath($doc);
$anchors = $xpath->query("//a[@title='something something']");
$list = $xpath->query("//ul[@class='some-class']")[0];
foreach ($anchors as $a) {
$list->removeChild($a->parentNode);
}
var_dump($doc->saveHTML());
Demo
196
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