I have XML file ("x_path_att.xml") like
<?xml version="1.0" encoding="UTF-8"?>
<root>
<book id="1" name="Book1" genre="Fantasy" />
<book id="2" name="Book2" genre="Novel" />
</root>
I want to do: Display the name of the book where id = 1. I used XPath.
<?php
$xml = simplexml_load_file("x_path_att.xml");
$book_name = $xml->xpath("root/book[@id='1']/@name");
print_r($book_name);
echo '<BR />'.$book_name[0].'<BR />';
?>
And this is my output on the screen:
Array ( )
Notice: Undefined offset: 0 in D:\EasyPHP... on line 6
So it's clear that the array is empty, but I don't understand why. I searched the internet and I think that everything should be OK. Where is the mistake, please?
Thank you!
You have a missing slash at the beginning of your path:
$xml = <<<XML
<?xml version="1.0" encoding="UTF-8"?>
<root>
<book id="1" name="Book1" genre="Fantasy" />
<book id="2" name="Book2" genre="Novel" />
</root>
XML;
$xml = simplexml_load_string($xml);
$book_name = $xml->xpath("/root/book[@id='1']/@name");
print_r($book_name);
And to get the attribute's value:
echo $book_name[0]->attributes()->name;
Giving:
Array
(
[0] => SimpleXMLElement Object
(
[@attributes] => Array
(
[name] => Book1
)
)
)
Book1
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