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# SimpleXMLElement->__construct()

(no version information, might be only in CVS)

SimpleXMLElement->__construct() -- Creates a new SimpleXMLElement object

## 说明

class SimpleXMLElement {
__construct ( string data [, int options [, bool data_is_url [, string ns [, bool is_prefix]]]] )
}

Creates a new SimpleXMLElement object.

## 参数

`data`

  A well-formed XML string or the path or URL to an XML document if `data_is_url` is `TRUE`.

`options`

  Optionally used to specify additional Libxml parameters.

`data_is_url`

  By default, `data_is_url` is `FALSE`. Use `TRUE` to specify that `data` is a path or URL to an XML document instead of string data.

`ns`

`is_prefix`

## 返回值

Returns a SimpleXMLElement object representing `data`.

## 错误／异常

Produces an `E_WARNING` error message for each error found in the XML data and throws an exception if errors were detected.

## 范例

例 1. Create a SimpleXMLElement object

`<?php include 'example.php'; $sxe = new SimpleXMLElement($xmlstr); echo $sxe->movie[0]->title; ?>`

例 2. Create a SimpleXMLElement object from a URL

`<?php $sxe = new SimpleXMLElement('http://example.org/document.xml', NULL, TRUE); echo $sxe->asXML(); ?>`

## 参见

simplexml_load_string
simplexml_load_file

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