SimpleXMLElement::__construct

(PHP 5, PHP 7, PHP 8)

SimpleXMLElement::__construct Creates a new SimpleXMLElement object

Опис

public SimpleXMLElement::__construct(
    string $data,
    int $options = 0,
    bool $dataIsURL = false,
    string $namespaceOrPrefix = "",
    bool $isPrefix = false
)

Creates a new SimpleXMLElement object.

Параметри

data

A well-formed XML string or the path or URL to an XML document if dataIsURL is true.

options

Optionally used to specify additional Libxml parameters, which affect reading of XML documents. Options which affect the output of XML documents (e.g. LIBXML_NOEMPTYTAG) are silently ignored.

Зауваження:

It may be necessary to pass LIBXML_PARSEHUGE to be able to process deeply nested XML or very large text nodes.

dataIsURL

By default, dataIsURL is false. Use true to specify that data is a path or URL to an XML document instead of string data.

namespaceOrPrefix

Namespace prefix or URI.

isPrefix

true if namespaceOrPrefix is a prefix, false if it's a URI; defaults to false.

Помилки/виключення

Produces an E_WARNING error message for each error found in the XML data and additionally throws an Exception if the XML data could not be parsed.

Підказка

Use libxml_use_internal_errors() to suppress all XML errors, and libxml_get_errors() to iterate over them afterwards.

Приклади

Зауваження:

Listed examples may include examples/simplexml-data.php, which refers to the XML string found in the first example of the basic usage guide.

Приклад #1 Create a SimpleXMLElement object

<?php

include 'examples/simplexml-data.php';

$sxe = new SimpleXMLElement($xmlstr);
echo
$sxe->movie[0]->title;

?>

Поданий вище приклад виведе:

PHP: Behind the Parser

Приклад #2 Create a SimpleXMLElement object from a URL

<?php

$sxe
= new SimpleXMLElement('http://example.org/document.xml', 0, true);
echo
$sxe->asXML();

?>

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