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SimpleXMLElement::__toString

(PHP 5 >= 5.3.0, PHP 7)

SimpleXMLElement::__toStringВозвращает содержимое строки

Описание

public string SimpleXMLElement::__toString ( void )

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 успеха 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 данного 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

up
11
Patanjali
2 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.
up
0
mmj at example dot net
8 months 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
-13
Patanjali
2 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.
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