Php/docs/function.simplexml-load-string
simplexml_load_string
(PHP 5, PHP 7)
simplexml_load_string — Interprets a string of XML into an object
说明
simplexml_load_string
( string $data
[, string $class_name = "SimpleXMLElement"
[, int $options = 0
[, string $ns = ""
[, bool $is_prefix = false
]]]] ) : SimpleXMLElement|false
Takes a well-formed XML string and returns it as an object.
参数
data- A well-formed XML string
class_name- You may use this optional parameter so that simplexml_load_string() will return an object of the specified class. That class should extend the SimpleXMLElement class.
options- Since PHP 5.1.0 and Libxml 2.6.0, you may also use the
optionsparameter to specify additional Libxml parameters. ns- Namespace prefix or URI.
is_prefixtrueifnsis a prefix,falseif it's a URI; defaults tofalse.
返回值
Returns an object of class SimpleXMLElement with
properties containing the data held within the xml document, 或者在失败时返回 false.
错误／异常
Produces an E_WARNING error message for each error
found in the XML data.
Tip Use libxml_use_internal_errors() to suppress all XML errors, and libxml_get_errors() to iterate over them afterwards.
更新日志
| 版本 | 说明 |
|---|---|
| 5.2.0 | The optional parameter is_prefix was added.
|
范例
Example #1 Interpret an XML string
<?php$string = <<<XML<?xml version='1.0'?> <document> <title>Forty What?</title> <from>Joe</from> <to>Jane</to> <body> I know that's the answer -- but what's the question? </body></document>XML;$xml = simplexml_load_string($string);print_r($xml);?>
以上例程会输出：
SimpleXMLElement Object ( [title] => Forty What? [from] => Joe [to] => Jane [body] => I know that's the answer -- but what's the question? )
At this point, you can go about using $xml->body
and such.
参见
- simplexml_load_file() - Interprets an XML file into an object
- SimpleXMLElement::__construct() - Creates a new SimpleXMLElement object
- Dealing with XML errors
- libxml_use_internal_errors() - Disable libxml errors and allow user to fetch error information as needed
- Basic SimpleXML usage
