note 102866 deleted from class.domnodelist by danbrown
| From: | danbrown@php.net | Date: | Fri, 11 Mar 2011 14:50:16 +0000 |
| Subject: | note 102866 deleted from class.domnodelist by danbrown | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-177797@lists.php.net to get a copy of this message | ||
Note Submitter: vector dot kerr at gmail dot com
----
You may also iterate over a DOMNodeList which is useful if you don't like creating extra
variables.
<?PHP
foreach( $nodelist as $index => $node ) { /* ... */ }
?>
@geompse:
The reason that this ...
<?PHP
for( $pos=0; $pos<$nodelist->length; $pos++ ) { /* ... */ }
?>
... takes so long is because each time the loop progresses and the conditions are checked, the
length of the node list must be recalculated.
Your alternative...
<?PHP
$length = $nodelist->length;
for( $i = 0; $i < $length; $i++ ) { /* ... */ }
?>
... stores the value once, which is a more appropriate approach.