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RecursiveRegexIterator::getChildren

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

RecursiveRegexIterator::getChildrenReturns an iterator for the current entry

说明

public 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.

范例

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";
}

}
?>

以上例程会输出:

No children
Children: test4 test5

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