SimpleXMLElement::__toString

    (PHP 5 >= 5.3.0, PHP 7, PHP 8)

    SimpleXMLElement::__toString — Returns the string content

    Опис

    public SimpleXMLElement::__toString(): string

    Returns text content that is directly in this element. Does not return text content that is inside this element's children.

    Параметри

    У цієї функції немає параметрів.

    Значення, що повертаються

    Returns the string content on success or an empty string on failure.

    Приклади

    Приклад #1 Get string content

    <?php
    $xml     = new SimpleXMLElement('<a>1 <b>2 </b>3</a>');
    echo     $xml;
    ?>

    Поданий вище приклад виведе:

    1 3

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    User Contributed Notes 2 notes

    up
    16
    mmj at example dot net
    7 years ago
    __toString() is not intended to be called directly.

    Instead, it defines what is returned when the object is cast to string, either explicitly with:

    (string)$element

    Or implicitly, when used in certain contexts which would cause a conversion to string.
    up
    11
    Patanjali
    8 years ago
    [Someone remove that other Patanjali's note, because it has errors! :-(]

    For those for whom it may not be immediately obvious from the example, the echo is what is forcing __toString() to be used.

    However, to assign the text of a node (but not its children) to a variable:

    $XML = new SimpleXMLElement('<p>Hello<span> world</span>.<span> Good day!</span></p>');

    $Text = $XML->__toString();

    is effectively:
    $Text = 'Hello.'; // The <span>s are ignored.

    Either of:
    $Text = $XML->span->__toString();
    $Text = $XML->span[0]->__toString();

    is effectively:
    $Text = ' world'; // Only the first <span> is used.

    $Text = $XML->span[1]->__toString();

    is effectively:
    $Text = ' Good day!'; // Only the second <span> is used.
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