SimpleXMLIterator::key

(PHP 5, PHP 7)

SimpleXMLIterator::keyReturn current key

Descrierea

public mixed SimpleXMLIterator::key ( void )

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

Parametri

Această funcție nu are parametri.

Valorile întoarse

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

Exemple

Example #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());

?>

Exemplul de mai sus va afișa:

bool(false)
string(4) "book"

add a note add a note

User Contributed Notes 1 note

up
3
bmafzallmahmud at gmail dot com
4 months 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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