SimpleXMLElement::count

(PHP 5 >= 5.3.0)

SimpleXMLElement::count — Counts the children of an element

Descrição

public int SimpleXMLElement::count ( void )

This method counts the number of children of an element.

Valor Retornado

Returns the number of elements of an element.

Exemplos

Exemplo #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());


}

 ?>

O exemplo acima irá imprimir:

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

Veja Também

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

User Contributed Notes

daniel dot erni at focusedpublishing dot com 22-Mar-2011 04:37

Alternative code for PHP < 5.3:


<?php


$count = $node->count(); // PHP > 5.3

 $count = count($node->children()); // PHP < 5.3

 ?>

Jimmy New Tron 16-Jun-2010 03:17

I used the DOMNodeList $length property to simulate this function since my host had not yet implemented PHP 5.3.  The following code makes it portable and allows you to prepare for an upgrade path.




<?php


$url = "http://www.example.com/foo.xml";

 $xml = simplexml_load_file($url);

 // For debugging


// echo "<p>".phpversion()."</p>";

 if(phpversion() >= '5.3.0'){


    $bar_count = $xml->foo->bar->count();


    }


else    {


    $doc = new DOMDocument();


    $str = $xml->asXML();


    $doc->loadXML($str);


    $bar_count = $doc->getElementsByTagName("bar")->length;


    }


echo "There are ".$bar_count." \"bar\" nodes in this document.<br />";

 ?>