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DOMDocument::loadHTMLFile

(PHP 5, PHP 7, PHP 8)

DOMDocument::loadHTMLFile Load HTML from a file

Descrição

public DOMDocument::loadHTMLFile(string $filename, int $options = 0): DOMDocument|bool

The function parses the HTML document in the file named filename. Unlike loading XML, HTML does not have to be well-formed to load.

Parâmetros

filename

The path to the HTML file.

options

Since Libxml 2.6.0, you may also use the options parameter to specify additional Libxml parameters.

Valor Retornado

Retorna true em caso de sucesso ou false em caso de falha. If called statically, returns a DOMDocument ou false em caso de falha.

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.

Este método pode ser chamado estaticamente, mas emitirá um erro E_STRICT.

Enquanto HTML malformado deve carregar com sucesso, esta função pode gerar erros E_WARNING quando encontra marcação ruim. libxml's funções de tratamento de erros pode ser usado para lidar com esses erros.

Exemplos

Exemplo #1 Creating a Document

<?php
$doc
= new DOMDocument();
$doc->loadHTMLFile("filename.html");
echo
$doc->saveHTML();
?>

Veja Também

add a note

User Contributed Notes 6 notes

up
12
onemanbanddan at gmail dot com
9 years ago
The options for surpressing errors and warnings will not work with this as they do for loadXML()
e.g.
<?php
$doc
->loadHTMLFile($file, LIBXML_NOWARNING | LIBXML_NOERROR);
?>
will not work.
you must use:
<?php
libxml_use_internal_errors
(true);
$doc->loadHTMLFile($file);
?>
and handle the exceptions as neccesarry.
up
2
Mark Omohundro, ajamyajax dot com
14 years ago
<?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";
    }
  }
}
?>
up
-2
andy at carobert dot com
17 years ago
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!
up
-6
qrworld.net
8 years ago
In this post http://softontherocks.blogspot.com/2014/11/descargar-el-contenido-de-una-url_11.html I found a simple way to get the content of a URL with DOMDocument, loadHTMLFile and saveHTML().

function getURLContent($url){
    $doc = new DOMDocument;
    $doc->preserveWhiteSpace = FALSE;
    @$doc->loadHTMLFile($url);
    return $doc->saveHTML();
}
up
-16
gzech at SPAMFILTER dot eso dot org
16 years ago
If you want to suppress output warnings from loadHTMLFile($url), put an @ sign in front. This even works in:
<?php
$load
= @$dom->loadHTMLFile($url);
?>
up
-19
bens at effortlessis dot com
17 years ago
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.
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