SimpleXMLIterator::current()
(PHP 5, PHP 7)
Returns the current element
说明
public SimpleXMLIterator::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" } ?>