RecursiveRegexIterator::getChildren

(PHP 5 >= 5.2.0, PHP 7, PHP 8)

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

说明

public function RecursiveRegexIterator::getChildren(): 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.

示例

示例 #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";
    }

}
?>

以上示例会输出：

No children
Children: test4 test5

参见