SimpleXMLIterator::key

(PHP 5, PHP 7)

SimpleXMLIterator::keyReturn current key

Opis

public SimpleXMLIterator::key ( void ) : mixed

This method gets the XML tag name of the current element.

Parametry

Ta funkcja nie posiada parametrów.

Zwracane wartości

Returns the XML tag name of the element referenced by the current SimpleXMLIterator object or FALSE

Przykłady

Przykład #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());

?>

Powyższy przykład wyświetli:

bool(false)
string(4) "book"

add a note add a note

User Contributed Notes 1 note

up
3
bmafzallmahmud at gmail dot com
6 years ago
<?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"
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