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DOMDocument::loadXML> <DOMDocument::loadHTML
[edit] Last updated: Wed, 22 May 2013

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DOMDocument::loadHTMLFile

(PHP 5)

DOMDocument::loadHTMLFile Cargar HTML desde un fichero

Descripción

bool DOMDocument::loadHTMLFile ( string $filename )

Esta función analiza el documento HTML del fichero llamado filename. A diferencia de cargar XML, HTML no tiene que estar bien formado para cargarse.

Parámetros

filename

La ruta al fichero HTML.

Valores devueltos

Devuelve TRUE en caso de éxito o FALSE en caso de error. Si se llama estáticamente, devuelve un DOMDocument o FALSE en caso de error.

Errores/Excepciones

Si se pasa una cadena vacía a filename o se nombra un fichero vacío, se generará una advertencia. Esta advertencia no es generada por libxml y no se puede tratar usando funciones de manejo de errores de libxml.

Este método puede ser llamado de forma estática, pero lanzará un error E_STRICT.

Aunque el HTML malformado debería cargar con éxito, esta función puede generar errores E_WARNING al encontrarse con marcado erróneo. Se pueden usar las funciones de manejo de errores de libxml para manejar estos errores.

Ejemplos

Ejemplo #1 Crear un Documento

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

Ver también



DOMDocument::loadXML> <DOMDocument::loadHTML
[edit] Last updated: Wed, 22 May 2013
 
add a note add a note User Contributed Notes DOMDocument::loadHTMLFile - [5 notes]
up
2
Mark Omohundro, ajamyajax dot com
4 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
1
andy at carobert dot com
7 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
0
gzech at SPAMFILTER dot eso dot org
6 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
0
Lachlan Hunt
7 years ago
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!
up
0
bens at effortlessis dot com
8 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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