Simple XML Element fail to parse a string from an .atom file

Question

I've this piece of code taken by a .atom document wrapped with file_get_contents:

<entry>
    <link type="text/html" rel="alternate" href="..."/>
</entry>

My goal is to extract the first URL into the href attribute in the entry tag, i tried to parse with:

$xml = new SimpleXMLElement($XML_file);
$link = $xml->entry[0]->link;
print $link;

But shell does not give me any output.

@MichaelBerkowski Yes, it's completely valid. You can see the entire file in the edit. — Gabriele Salvatori, Nov 24 '12 at 20:02

E_p · Accepted Answer · 2012-11-24T21:13:06.093

1

Did you try? As your link element looks empty.

<entry>
    <link type="text/html" rel="alternate" href="...">Something</link>
</entry>

And than your php?

That is my point, t is exactly what you try to echo. to get attributes

http://www.php.net/manual/en/simplexmlelement.attributes.php

$text = '<entry><link type="text/html" rel="alternate" href="..." /></entry>';
$xml = simplexml_load_string($text);
$linkAttributes = $xml->link->attributes();
foreach ($linkAttributes as $key => $value)  {
    echo $key . '::' . $value . PHP_EOL;
}

outputs:

type::text/html
rel::alternate
href::...

edited Nov 24 '12 at 21:13

answered Nov 24 '12 at 19:39

E_p

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there's no "Something". Syntax is : `. You can see the entire code in the edit. – Gabriele Salvatori Nov 24 '12 at 20:00
I cannot understand how to manipulate the attributes as is described in the PHP manual example. – Gabriele Salvatori Nov 24 '12 at 20:58
Thank you so much, it was easier than i thought ;) – Gabriele Salvatori Nov 24 '12 at 21:14
2

Note that you can also access attribute values by name like you would with an array. For example, `echo $xml->entry->link['href'];` – salathe Nov 24 '12 at 21:31

score 0 · Answer 2 · answered Nov 24 '12 at 19:40

0

When you load an xml document, the document is the root element (in this case <entry>). Therefore, you want:

$xml = new SimpleXMLElement($XML_file);
$link = $xml->link;
print $link;

answered Nov 24 '12 at 19:40

Eric

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Shell still does not give me anything. – Gabriele Salvatori Nov 24 '12 at 19:46

Simple XML Element fail to parse a string from an .atom file

2 Answers2