XML Changing value of namespace property - php

Question

I need to change a value of a nested namespace property within a XML document before I submit it to an EPP service.
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<epp xmlns="urn:ietf:params:xml:ns:epp-1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:ietf:params:xml:ns:epp-1.0 epp-1.0.xsd">
<command>
<info>
<host:info xmlns:host="urn:ietf:params:xml:ns:host-1.0" xsi:schemaLocation="urn:ietf:params:xml:ns:host-1.0 host-1.0.xsd">
<host:name>ns1.example.test.example.com</host:name>
</host:info>
</info>
<clTRID>NORID-14373-1207137695427775</clTRID>
</command>
</epp>
In the above XML, I need to change the host:name elements value. I am using PHP simplexml_load_string to first modify the values from the XML schema as shown below.
$xml = simplexml_load_string(file_get_contents($fn));
$xml->command->clTRID = GUID(); // This works perfectly
$xml->command->info->name = 'somename'; // Does not work :)
What is the correct way to do this?

Answer 1

Use the following code
Note I am echoing the data for your reference as how to use it
echo $xml->command->info->children('host', true)->info->name;
Total simple code which I tried
$xmls = '<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<epp xmlns="urn:ietf:params:xml:ns:epp-1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:ietf:params:xml:ns:epp-1.0 epp-1.0.xsd">
<command>
<info>
<host:info xmlns:host="urn:ietf:params:xml:ns:host-1.0" xsi:schemaLocation="urn:ietf:params:xml:ns:host-1.0 host-1.0.xsd">
<host:name>ns1.example.test.example.com</host:name>
</host:info>
</info>
<clTRID>NORID-14373-1207137695427775</clTRID>
</command>
</epp>';
$xml = simplexml_load_string($xmls);
$xml->command->clTRID = 'something'; // This works perfectly
echo $xml->command->info->children('host', true)->info->name;
$xml->command->info->children('host', true)->info->name = 'some new name';
echo $xml->command->info->children('host', true)->info->name;