<?php
$note=<<<XML
<note>
<to>Tove</to>
<from>Jani</from>
<heading>Reminder</heading>
<body>Don't forget me this weekend!</body>
</note>
XML;
$xmlIterator = new SimpleXMLIterator($note);
for( $xmlIterator->rewind(); $xmlIterator->valid(); $xmlIterator->next() ) {
echo "<pre>";
echo var_dump($xmlIterator->key());
}
?>
out put :
string(2) "to"
string(4) "from"
string(7) "heading"
string(4) "body"
SimpleXMLIterator::key
(PHP 5, PHP 7, PHP 8)
SimpleXMLIterator::key — Return current key
参数
此函数没有参数。
返回值
Returns the XML tag name of the element referenced by the current SimpleXMLIterator object or false
范例
示例 #1 Get the current XML tag key
<?php
$xmlIterator = new SimpleXMLIterator('<books><book>PHP basics</book><book>XML basics</book></books>');
echo var_dump($xmlIterator->key());
$xmlIterator->rewind(); // rewind to the first element
echo var_dump($xmlIterator->key());
?>
以上例程会输出：
bool(false) string(4) "book"
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User Contributed Notes 1 note
bmafzallmahmud at gmail dot com ¶
6 years ago
