From: php at maisqi dot com
Operating system: Probably all
PHP version: 5.4.19
Package: SimpleXML related
Bug Type: Bug
Bug description:Non existent properties should be regular SimpleXMLElement
objects
Description:
------------
When we invoke a non existent sub-node, SimpleXMLElement returns a
SimpleXMLElement object. But when we try to get a non existent sub-node on
that object, it returns NULL.
IMO this renderes it inconsistent.
Test script:
---------------
<?php
class XXX {
public function test () {
$sx = new \SimpleXMLElement ('<x></x>');
$node = $sx->node;
echo '1: $node = $sx->node => ', $node === $this ? 'this' :
gettype
($node) . ':' . get_class ($node), ' node->count: ', $node->count (),
"<br />\n";
$node = $sx->node->node;
echo '2: $node = $node->node => ', $node === $this ? 'this' :
gettype
($node), "<br />\n";
}
}
$x = new XXX;
$x->test ();
Expected result:
----------------
Or both ($sx and $node) SimpleXMLElement objects should return NULL for a
non existent sub-node or both sould return a SimpleXMLElement object. As it
is, it's a surprise lurking.
I think the second option is best. It makes things like this possible:
if ($products = $sx->Catalog->Products->Product) {
// Never gets here if there's no <Catalog>, or if it has no sub-nodes
// named <Products>, or if it has no sub-nodes named Product.
}
else die ('No products');
Actual result:
--------------
$node it's a SimpleXMLElement, then it is NULL.
1: $node = $sx->node => object:SimpleXMLElement node->count: 0<br />
2: $node = $node->node => NULL<br />
--
Edit bug report at https://bugs.php.net/bug.php?id=65535&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=65535&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=65535&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=65535&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=65535&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=65535&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=65535&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=65535&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=65535&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=65535&r=support
Expected behavior: https://bugs.php.net/fix.php?id=65535&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=65535&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=65535&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=65535&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=65535&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=65535&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=65535&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=65535&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=65535&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=65535&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=65535&r=mysqlcfg
