note 101804 added to simplexmlelement.xpath
| From: | yetihehe at yetihehe dot com | Date: | Wed, 12 Jan 2011 10:21:58 +0000 |
| Subject: | note 101804 added to simplexmlelement.xpath | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-175659@lists.php.net to get a copy of this message | ||
Xpath actually knows which element is root regardless of element on which you execute it. Example:
<?php
$string = <<<XML
<a>
<b>
<c>text</c>
<c>stuff</c>
</b>
<b>
<c>code</c>
</b>
</a>
XML;
header('content-type: text/plain');
$xml = new SimpleXMLElement($string);
//relative to root
$b0=$xml->b[0]->xpath('//c');
while(list( , $node) = each($b0)) {
echo 'b[0]: //c: ',$node,"\n";
}
$b1=$xml->b[1]->xpath('//c');
while(list( , $node) = each($b1)) {
echo 'b[1]: //c: ',$node,"\n";
}
echo "\n";
//relative to current element
$b0=$xml->b[0]->xpath('.//c');
while(list( , $node) = each($b0)) {
echo 'b[0]: .//c: ',$node,"\n";
}
$b1=$xml->b[1]->xpath('.//c');
while(list( , $node) = each($b1)) {
echo 'b[1]: .//c: ',$node,"\n";
}
?>
Will return:
b[0]: //c: text
b[0]: //c: stuff
b[0]: //c: code
b[1]: //c: text
b[1]: //c: stuff
b[1]: //c: code
b[0]: .//c: text
b[0]: .//c: stuff
b[1]: .//c: code
----
Server IP: 82.177.164.100
Probable Submitter: 79.190.157.69
----
Manual Page -- http://www.php.net/manual/en/simplexmlelement.xpath.php
Edit -- https://master.php.net/note/edit/101804
Del: integrated -- https://master.php.net/note/delete/101804/integrated
Del: useless -- https://master.php.net/note/delete/101804/useless
Del: bad code -- https://master.php.net/note/delete/101804/bad+code
Del: spam -- https://master.php.net/note/delete/101804/spam
Del: non-english -- https://master.php.net/note/delete/101804/non-english
Del: in docs -- https://master.php.net/note/delete/101804/in+docs
Del: other reasons-- https://master.php.net/note/delete/101804
Reject -- https://master.php.net/note/reject/101804
Search -- https://master.php.net/manage/user-notes.php