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DOMDocument::saveHTMLFile

(PHP 5, PHP 7, PHP 8)

DOMDocument::saveHTMLFile 内部のドキュメントを HTML 形式でファイルに出力する

説明

public DOMDocument::saveHTMLFile(string $filename): int|false

DOM 表現から HTML ドキュメントを作成します。この関数は、通常は以下の例のように DOM ドキュメントを新しく作成した後にコールされます。

パラメータ

filename

保存された HTML ドキュメントへのパス。

戻り値

書き込んだバイト数、あるいはエラーが発生した場合は false を返します。

例1 HTML ツリーをファイルに保存する

<?php

$doc
= new DOMDocument('1.0');
// 出力はきれいに整形したいですね。
$doc->formatOutput = true;

$root = $doc->createElement('html');
$root = $doc->appendChild($root);

$head = $doc->createElement('head');
$head = $root->appendChild($head);

$title = $doc->createElement('title');
$title = $head->appendChild($title);

$text = $doc->createTextNode('This is the title');
$text = $title->appendChild($text);

echo
'Wrote: ' . $doc->saveHTMLFile("/tmp/test.html") . ' bytes'; // Wrote: 129 bytes

?>

参考

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User Contributed Notes 3 notes

up
8
RiKdnUA at mail dot ru
11 years ago
saveHTMLFile() always saves the file in UTF-8. Even if the DOMDocument->encoding explicitly prescribe different from UTF-8 encoding. All "non-Latin" characters will be converted to HTML-entities. Tested in PHP 5.2.9-2 and PHP 5.2.17. Example:

<?php
$document
=new domDocument('1.0', 'WINDOWS-1251');
$document->loadHTML('<html><head><title>Russian language</title></head><body>Русский язык</body></html>');
$document->formatOutput=true;
$document->encoding='WINDOWS-1251';
echo
"Записано байт. Recorded bytes: ".$document->saveHTMLFile('html.html');
?>

Method recorded file in UTF-8 encoding. The contents of the file html.html:

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Russian language</title>
</head>
<body>Ðóññêèé ÿçûê</body>
</html>
up
0
naebeth at hotmail dot NOSPAM dot com
12 years ago
Not mentioned in the documentation is the fact that using DOMDocument::saveHTMLFile() will automatically overwrite the contents if an existing file is used - with no notice, warning or error thrown.

Make sure you check the filename before using this function so that you don't accidentally overwrite important files.

Example:
<?php

$file
= fopen('test.html', 'w');
fwrite($file, 'this is some text');
fclose($file);

$doc = new DOMDocument();
$doc->formatOutput = true;
$doc->loadHTML('<html><head><title>Test</title></head><body></body></html>');
$doc->saveHTMLFile('test.html');

// test.html
/*
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Test</title>
</head>
<body></body>
</html>
*/

?>

If you're dynamically generating a series of pages using DOMDocument objects, make sure you are also dynamically generating the file or directory names using something that can't easily be confused for an existing file/folder, or check if the desired path already exists before saving so that you don't accidentally delete previous files.
up
-1
deep42thouSPAMght42 at y_a_h_o_o dot com
13 years ago
I foolishly assumed that this function was equivalent to
<?php
file_put_contents
($filename, $document->saveHTML());
?>
but there are differences in the generated HTML:
<?php
$doc
= new DOMDocument();
$doc->loadHTML(
'<html><head><title>Test</title></head><body></body></html>'
);
$doc->encoding = 'iso-8859-1';

echo
$doc->saveHTML();
#<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
#<html>
#<head><title>Test</title></head>
#<body></body>
#</html>

$doc->saveHTMLFile('output.html');
#<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
#<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Test</title></head><body></body></html>

?>
Note that saveHTMLFile() adds a UTF-8 meta tag despite the ISO-8859-1 document encoding.
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