RecursiveRegexIterator::getChildren

(PHP 5 >= 5.2.0)

RecursiveRegexIterator::getChildren — Returns an iterator for the current entry.

说明

public RecursiveRegexIterator RecursiveRegexIterator::getChildren ( void )

Returns an iterator for the current iterator entry.

参数

此函数没有参数。

返回值

An iterator for the current entry, if it can be iterated over by the inner iterator.

错误／异常

An InvalidArgumentException will be thrown if the current entry does not contain a value that can be iterated over by the inner iterator.

范例

Example #1 RecursiveRegexIterator::getChildren() example

  <?php
$rArrayIterator  = new  RecursiveArrayIterator (array( 'test1' , array( 'tet3' ,  'test4' ,  'test5' )));
 $rRegexIterator  = new  RecursiveRegexIterator ( $rArrayIterator ,  '/^test/' ,
     RecursiveRegexIterator :: ALL_MATCHES );

foreach ( $rRegexIterator  as  $key1  =>  $value1 ) {

    if ( $rRegexIterator -> hasChildren ()) {

         // print all children
         echo  "Children: " ;
        foreach ( $rRegexIterator -> getChildren () as  $key  =>  $value ) {
            echo  $value  .  " " ;
        }
        echo  "\n" ;
    } else {
        echo  "No children\n" ;
    }

}
 ?>

以上例程会输出：

No children
Children: test4 test5

参见

RecursiveRegexIterator::hasChildren() - Returns whether an iterator can be obtained for the current entry.