I used @Alex's approach here to remove script tags from a HTML document using the built in DOMDocument. The problem is if I have a script tag with Javascript content and then another script tag that links to an external Javascript source file, not all script tags are removed from the HTML.
$result = '
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>
hey
</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script>
alert("hello");
</script>
</head>
<body>hey</body>
</html>
';
$dom = new DOMDocument();
if($dom->loadHTML($result))
{
$script_tags = $dom->getElementsByTagName('script');
$length = $script_tags->length;
for ($i = 0; $i < $length; $i++) {
if(is_object($script_tags->item($i)->parentNode)) {
$script_tags->item($i)->parentNode->removeChild($script_tags->item($i));
}
}
echo $dom->saveHTML();
}
The above code outputs:
<html>
<head>
<meta charset="utf-8">
<title>hey</title>
<script>
alert("hello");
</script>
</head>
<body>
hey
</body>
</html>
As you can see from the output, only the external script tag was removed. Is there anything I can do to ensure all script tags are removed?
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