Returns whether an iterator can be obtained for the current entry

# RecursiveRegexIterator::hasChildren

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

RecursiveRegexIterator::hasChildren — Returns whether an iterator can be obtained for the current entry

### 说明

public function RecursiveRegexIterator::hasChildren(): bool

Returns whether an iterator can be obtained for the current entry. This iterator can be obtained via RecursiveRegexIterator::getChildren().

### 参数

此函数没有参数。

### 返回值

Returns `true` if an iterator can be obtained for the current entry, otherwise returns `false`.

### 示例

示例 #1 RecursiveRegexIterator::hasChildren() example

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

    foreach ($rRegexIterator as $value) {
        var_dump($rRegexIterator->hasChildren());
    }
    ?>

以上示例会输出：

    bool(false)
    bool(true)

### 参见

- RecursiveRegexIterator::getChildren() - Returns an iterator for the current entry

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