PHPerKaigi 2025

    Dom\HTMLDocument::createFromString

    (PHP 8 >= 8.4.0)

    Dom\HTMLDocument::createFromString — Parses an HTML document from a string

    Опис

    public static Dom\HTMLDocument::createFromString(string $source, int $options = 0, ?string $overrideEncoding = null): Dom\HTMLDocument

    Parses an HTML document from a string, according to the living standard.

    Параметри

    source
    The string containing the HTML to parse.
    options

    Побітове АБО констант опцій libxml.

    It is also possible to pass Dom\HTML_NO_DEFAULT_NS to disable the use of the HTML namespace and the template element. This should only be used if the implications are properly understood.
    overrideEncoding
    The encoding that the document was created in. If not provided, it will attempt to determine the encoding that is most likely used.

    Значення, що повертаються

    The parsed document as an Dom\HTMLDocument instance.

    Помилки/виключення

    • Throws a ValueError if options contains an invalid option.
    • Throws a ValueError if overrideEncoding is an unknown encoding.

    Приклади

    Приклад #1 Dom\HTMLDocument::createFromString() example

    Parses a sample document.

    <?php
    $dom     = Dom\HTMLDocument::createFromString(<<<'HTML'
    <!DOCTYPE html>
    <html>
    <body>
    <p>Hello, world!</p>
    </body>
    </html>
    HTML);
    echo     $dom->saveHtml();
    ?>

    Поданий вище приклад виведе:

    <!DOCTYPE html><html><head></head><body>
    <p>Hello, world!</p>

</body></html>

    Примітки

    Зауваження: Whitespace in the html and head tags is not considered significant and may lose formatting.

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    User Contributed Notes 1 note

    up
    0
    kawewong at gmail dot com
    8 hours ago
    To load HTML without doctype, html, body elements use `LIBXML_HTML_NOIMPLIED` flag.

    <?php
    $html     = <<<EOT
    <div class="row">
    <div class="col"><h1 id="heading" class="col1-heading">Hello</h1></div>
    <div class="col"><p class="paragraph">Hello world.</p>
    </div>
    EOT;
    $doc = \DOM\HTMLDocument::createFromString($html, LIBXML_HTML_NOIMPLIED);
    echo     htmlspecialchars($doc->saveHTML(), ENT_QUOTES);
    ?>
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