note 90490 added to simplexml.examples-basic
| From: | radamsatcirclepixcom at osu1 dot php dot net | Date: | Fri, 24 Apr 2009 17:52:38 +0000 |
| Subject: | note 90490 added to simplexml.examples-basic | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-153690@lists.php.net to get a copy of this message | ||
To test whether an element exists:
<?php
$xml = <<<EOT
<?xml version='1.0' standalone='yes'?>
<root>
<test1></test1>
<test2 />
<test4> </test4>
</root>
EOT;
$xmlDoc = new SimpleXMLElement($xml);
echo "Test1: \n";
var_dump($xmlDoc->test1);
echo "\n(" . (bool)$xmlDoc->test1 . ")";
echo "\n\n";
echo "Test2: \n";
var_dump($xmlDoc->test2);
echo "\n(" . (bool)$xmlDoc->test2 . ")";
echo "\n\n";
echo "Test3: \n";
var_dump($xmlDoc->test3);
echo "\n(" . (bool)$xmlDoc->test3 . ")";
echo "\n\n";
echo "Test4: \n";
var_dump($xmlDoc->test4);
echo "\n(" . (bool)$xmlDoc->test4 . ")";
echo "\n\n";
?>
The var_dumps for test1, test2, and test3 are identical, but the (bool) test gives a '1'
for test1 and test2, and a '' for test3.
----
Server IP: 209.41.74.194
Probable Submitter: 209.90.85.137
----
Manual Page -- http://www.php.net/manual/en/simplexml.examples-basic.php
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