DOMDocument::loadHTML
<?php
// try this html listing example for all nodes / includes a few getElementsByTagName options:
$file = $DOCUMENT_ROOT. "test.html";
$doc = new DOMDocument();
$doc->loadHTMLFile($file);
// example 1:
$elements = $doc->getElementsByTagName('*');
// example 2:
$elements = $doc->getElementsByTagName('html');
// example 3:
//$elements = $doc->getElementsByTagName('body');
// example 4:
//$elements = $doc->getElementsByTagName('table');
// example 5:
//$elements = $doc->getElementsByTagName('div');
if (!is_null($elements)) {
foreach ($elements as $element) {
echo "<br/>". $element->nodeName. ": ";
$nodes = $element->childNodes;
foreach ($nodes as $node) {
echo $node->nodeValue. "\n";
}
}
}
?>
DOMDocument::loadHTMLFile
(PHP 5)
DOMDocument::loadHTMLFile — Load HTML from a file
Descrição
bool DOMDocument::loadHTMLFile
( string $filename
)
The function parses the HTML document in the file named filename . Unlike loading XML, HTML does not have to be well-formed to load.
Though not recommended, this function may also be called statically to load and create a DOMDocument object. The static invocation may be used when no DOMDocument properties need to be set prior to loading. However, doing so will result an in E_STRICT error being generated.
Parâmetros
- filename
-
The path to the HTML file.
Valor Retornado
Retorna TRUE em caso de sucesso ou FALSE em falhas. If called statically, returns a DOMDocument and issues E_STRICT warning.
Erros
If an empty string is passed as the filename or an empty file is named, a warning will be generated. This warning is not generated by libxml and cannot be handled using libxml's error handling functions.
Exemplos
Exemplo #1 Creating a Document
<?php
$doc = new DOMDocument();
$doc->loadHTMLFile("filename.html");
echo $doc->saveHTML();
?>
Veja Também
- DOMDocument::loadHTML - Load HTML from a string
- DOMDocument::saveHTML - Dumps the internal document into a string using HTML formatting
- DOMDocument::saveHTMLFile - Dumps the internal document into a file using HTML formatting
add a note
User Contributed NotesDOMDocument::loadHTMLFile
Mark Omohundro, ajamyajax dot com
28-Nov-2008 12:32
28-Nov-2008 12:32
gzech at SPAMFILTER dot eso dot org
21-Feb-2007 08:09
21-Feb-2007 08:09
If you want to suppress output warnings from loadHTMLFile($url), put an @ sign in front. This even works in:
<?php
$load = @$dom->loadHTMLFile($url);
?>
Lachlan Hunt
27-Sep-2005 04:15
27-Sep-2005 04:15
Andy, the code you gave should not give that result. In your code, $tag is an <a> element and the nodeValue of elements is null, according to the DOM2 spec. You need to get at the text node first, before getting the node value.
<?
...
foreach ($tags as $tag) {
echo $tag->getAttribute('href').' | '.$tag->childNodes->item(0)->nodeValue."\n";
}
?>
This should output:
/mypage1 | Hello World!
/mypage2 | Another Hello World!
andy at carobert dot com
25-May-2005 06:24
25-May-2005 06:24
This puts the HTML into a DOM object which can be parsed by individual tags, attributes, etc.. Here is an example of getting all the 'href' attributes and corresponding node values out of the 'a' tag. Very cool....
<?php
$myhtml = <<<EOF
<html>
<head>
<title>My Page</title>
</head>
<body>
<p><a href="/mypage1">Hello World!</a></p>
<p><a href="/mypage2">Another Hello World!</a></p>
</body>
</html>
EOF;
$doc = new DOMDocument();
$doc->loadHTML($myhtml);
$tags = $doc->getElementsByTagName('a');
foreach ($tags as $tag) {
echo $tag->getAttribute('href').' | '.$tag->nodeValue."\n";
}
?>
This should output:
/mypage1 | Hello World!
/mypage2 | Another Hello World!
bens at effortlessis dot com
08-Apr-2005 10:11
08-Apr-2005 10:11
Note that this function doesn't parse the individual tags WITHIN the html file - it's all loaded as a "black box", and you end up with an XML widget that comprises nothing but the complete chunk of HTML.
I was hoping it would function as a sort of HTML-validator/parser, but that doesn't seem to be the case.