__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.
SimpleXMLElement::__toString
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
SimpleXMLElement::__toString — Возвращает содержимое строки
Описание
Возвращает содержимое строки, находящиеся непосредственно в элементе. Не возвращает текстовый контент дочерних элементов.
Список параметров
У этой функции нет параметров.
Возвращаемые значения
Возвращает содержимое строки в случае успешного выполнения и пустую строку в ином случае.
Примеры
Пример #1 Получить содержимое строки
<?php
$xml = new SimpleXMLElement('<a>1 <b>2 </b>3</a>');
echo $xml;
?>Результат выполнения приведённого примера:
1 3
Смотрите также
- SimpleXMLElement::asXML() - Возвращает сформированный XML-документ в виде строки на основе элемента SimpleXML
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User Contributed Notes 3 notes
mmj at example dot net ¶
7 years ago
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.
Patanjali ¶
8 years ago
For those for whom it may not be immediately obvious from the example, 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>');
Either:
$Text = $XML;
$Text = $XML->__String();
is effectively:
$Text = 'Hello.'; // The <span>s are ignored.
Either of:
$Text = $XML->span;
$Text = $XML->span[0];
is effectively:
$Text = ' world'; // Only the first <span> is used.
$Text = $XML->span[1];
is effectively:
$Text = ' Good day!'; // Only the second <span> is used.
