SimpleXMLIterator::current()

(PHP 5, PHP 7)

Returns the current element

说明

publicSimpleXMLIterator::current(void): mixed

This method returns the current element as a SimpleXMLIterator object or NULL.

参数

此函数没有参数。

返回值

Returns the current element as a SimpleXMLIterator object or NULL on failure.

范例

Example #1 Return the current element

<?php
$xmlIterator = new SimpleXMLIterator('<books><book>PHP basics</book><book>XML basics</book></books>');
var_dump($xmlIterator->current());
$xmlIterator->rewind(); // rewind to first element
var_dump($xmlIterator->current());
?>

以上例程会输出：

NULL
object(SimpleXMLIterator)#2 (1) {
  [0]=>
  string(10) "PHP basics"
}

参见

SimpleXMLIterator::key() Return current key
SimpleXMLIterator::next() Move to next element
SimpleXMLIterator::rewind() Rewind to the first element
SimpleXMLIterator::valid() Check whether the current element is valid
SimpleXMLElement

<?php 
$note=<<<XML
<note>
<to>Afzall</to>
<from>Hasan</from>
<heading>Reminder</heading>
<body>Don't forget your parents</body>
</note>
XML;
$xmlIterator = new SimpleXMLIterator($note);
var_dump($xmlIterator->current()); //out put : NULL
var_dump($xmlIterator->rewind()); //out put null
$xmlIterator->rewind(); //beacse of rewind to first element then show "$xmlIterator->current()""
var_dump($xmlIterator->current());
 //out put : object(SimpleXMLIterator)#2 (1) { [0]=> string(6) "Afzall" }
?>