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constructor Php The leading underscore of the constructor construct is double_
- WBOYOriginal
- 2016-07-29 08:41:221455browse
Definition and Usage
__construct() function creates a new SimpleXMLElement object.
If successful, the function returns an object. On failure, returns false.
Syntax
__construct(data,options,is_url,ns,is_prefix)
| Parameters | Description |
|---|---|
| data | Required. A well-formed XML string or the path or URL of an XML document. |
| options | Optional. Specifies additional Libxml parameters. |
| is_url | Optional. Specifies whether the data parameter is a URL. The default is false. |
| ns | optional. |
| is_prefix | Optional. |
Return Value
Returns a SimpleXMLElement object representing the data.
Example
<?php $xmlstring = <<<XML <?xml version="1.0" encoding="ISO-8859-1"?> <note> <to>George</to> <from>John</from> <heading>Reminder</heading> <body>Don't forget the meeting!</body> </note> XML; $xml = new <code>SimpleXMLElement($xmlstring)</code>; echo $xml->body[0]; ?>
Output similar to:
Don't forget the meeting!<br>后来看construct的前_是一个，我靠，上次也是这个错误，忘了，现在记着了 <br>function __construct() <br>{} <br>不是 <br>function _construct() <br>{}
The above introduces the constructor Php constructor function. The leading underscore of construct is double _, including the content of constructor. I hope it will be helpful to friends who are interested in PHP tutorials.
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