Counts the children of an element

# SimpleXMLElement::count

(PHP 8)

SimpleXMLElement::count — Counts the children of an element

### 说明

public function SimpleXMLElement::count(): int

This method counts the number of children of an element.

### 参数

此函数没有参数。

### 返回值

Returns the number of elements of an element.

### 示例

示例 #1 Counting the number of children

    <?php
    $xml = <<<EOF
    <people>
     <person name="Person 1">
      <child/>
      <child/>
      <child/>
     </person>
     <person name="Person 2">
      <child/>
      <child/>
      <child/>
      <child/>
      <child/>
     </person>
    </people>
    EOF;

    $elem = new SimpleXMLElement($xml);

    foreach ($elem as $person) {
        printf("%s has got %d children.\n", $person['name'], $person->count());
    }
    ?>

以上示例会输出：

    Person 1 has got 3 children.
    Person 2 has got 5 children.

### 参见

- SimpleXMLElement::children() - Finds children of given node

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