(PHP 5 >= 5.2.0, PHP 7, PHP 8)
RecursiveRegexIterator::getChildren — Returns an iterator for the current entry
Returns an iterator for the current iterator entry.
此函数没有参数。
An iterator for the current entry, if it can be iterated over by the inner iterator.
An InvalidArgumentException will be thrown if the current entry does not contain a value that can be iterated over by the inner iterator.
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