SimpleXMLIterator::current

(PHP 5 >= 5.1.0)

SimpleXMLIterator::current — Returns the current element

说明

public mixed SimpleXMLIterator::current ( void )

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