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  • RecursiveRegexIterator::getChildren()

    (PHP 5 >= 5.2.0, PHP 7)

    Returns an iterator for the current entry

    说明

    publicRecursiveRegexIterator::getChildren(void): RecursiveRegexIterator

    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

    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