DOMDocument::loadHTMLFile

(PHP 5, PHP 7)

DOMDocument::loadHTMLFile Load HTML from a file

설명

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

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

인수

filename

The path to the HTML file.

options

Since PHP 5.4.0 and Libxml 2.6.0, you may also use the options parameter to specify additional Libxml parameters.

반환값

성공 시 TRUE를, 실패 시 FALSE를 반환합니다. If called statically, returns a DOMDocument실패 시 FALSE를 반환합니다.

오류/예외

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.

이 메소드는 정적으로 호출할 수있지만, E_STRICT 오류가 발생합니다.

오류가 있는 HTML은 성공적으로 읽을 수 있지만, 잘못된 마크업을 만날 때 마다 E_WARNING 오류가 발생합니다. libxml의 오류 처리 함수functions로 이러한 오류를 다룰 수 있습니다.

예제

Example #1 Creating a Document

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

변경점

버전 설명
5.4.0 Added options parameter.

참고

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User Contributed Notes 6 notes

up
7
onemanbanddan at gmail dot com
7 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
0
Mark Omohundro, ajamyajax dot com
13 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
0
andy at carobert dot com
16 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
-4
qrworld.net
7 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 $doc->saveHTML();
}
up
-14
gzech at SPAMFILTER dot eso dot org
14 years ago
If you want to suppress output warnings from loadHTMLFile($url), put an @ sign in front. This even works in:
<?php
$load
= @$dom->loadHTMLFile($url);
?>
up
-16
bens at effortlessis dot com
16 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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