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POUsing PHP to manage GMail Mail Filter XML Files
 

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  1. POUsing PHP to manage GMail Mail Filter XML Files
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    <p>Since GMail made it possible to import and export the mail filters, I'd like to manage the XML files that are exported from GMail using a PHP script, as there are some <a href="http://www.google.com/support/forum/p/gmail/thread?tid=0db8311e7d8d87e0&amp;hl=en" rel="nofollow">known issues</a> with the number of characters in the search filters.</p> <p>I've found the simplexml_load_file function in PHP, and have performed var_dump() against the performed export, but I now don't seem to be able to access the apps namespace within the generated XML file.</p> <p>Following various pages within the PHP manual, I created this very simple script to read the XML out so I can start to process out the filters I've already created. Unfortunately, it seems to be missing the key parts!</p> <pre><code>&lt;pre&gt;&lt;?php if(file_exists("mailfilters.xml")) { $xml = simplexml_load_file("mailfilters.xml"); $namespaces = $xml-&gt;getNamespaces(true); foreach ($namespaces as $prefix =&gt; $ns) { $xml-&gt;registerXPathNamespace($prefix, $ns); } var_dump($xml); } else { die("Failed to open filter file"); } ?&gt;&lt;/pre&gt; </code></pre> <p>This returns this data (extract)</p> <pre><code>["entry"]=&gt; array(268) { [0]=&gt; object(SimpleXMLElement)#3 (5) { ["category"]=&gt; object(SimpleXMLElement)#271 (1) { ["@attributes"]=&gt; array(1) { ["term"]=&gt; string(6) "filter" } } ["title"]=&gt; string(11) "Mail Filter" ["id"]=&gt; string(45) "tag:mail.google.com,2008:filter:1284991916868" ["updated"]=&gt; string(20) "2010-10-28T11:59:31Z" ["content"]=&gt; object(SimpleXMLElement)#272 (0) { } } [1]=&gt; object(SimpleXMLElement)#4 (5) { ["category"]=&gt; object(SimpleXMLElement)#272 (1) { ["@attributes"]=&gt; array(1) { ["term"]=&gt; string(6) "filter" } } ["title"]=&gt; string(11) "Mail Filter" ["id"]=&gt; string(45) "tag:mail.google.com,2008:filter:1284991925003" ["updated"]=&gt; string(20) "2010-10-28T11:59:31Z" ["content"]=&gt; object(SimpleXMLElement)#271 (0) { } } </code></pre> <p>Here's an extract from the XML file I have downloaded today, used to create the above output:</p> <pre><code>&lt;?xml version='1.0' encoding='UTF-8'?&gt;&lt;feed xmlns='http://www.w3.org/2005/Atom' xmlns:apps='http://schemas.google.com/apps/2006'&gt; &lt;title&gt;Mail Filters&lt;/title&gt; &lt;id&gt;tag:mail.google.com,2008:filters:1284991916868,...,1287734777820&lt;/id&gt; &lt;updated&gt;2010-10-28T11:59:31Z&lt;/updated&gt; &lt;author&gt; &lt;name&gt;My Name&lt;/name&gt; &lt;email&gt;my@email.addr.es&lt;/email&gt; &lt;/author&gt; &lt;entry&gt; &lt;category term='filter'&gt;&lt;/category&gt; &lt;title&gt;Mail Filter&lt;/title&gt; &lt;id&gt;tag:mail.google.com,2008:filter:1284991916868&lt;/id&gt; &lt;updated&gt;2010-10-28T11:59:31Z&lt;/updated&gt; &lt;content&gt;&lt;/content&gt; &lt;apps:property name='from' value='an@email.addr.es'/&gt; &lt;apps:property name='shouldArchive' value='true'/&gt; &lt;apps:property name='shouldTrash' value='true'/&gt; &lt;/entry&gt; &lt;entry&gt; &lt;category term='filter'&gt;&lt;/category&gt; &lt;title&gt;Mail Filter&lt;/title&gt; &lt;id&gt;tag:mail.google.com,2008:filter:1284993579743&lt;/id&gt; &lt;updated&gt;2010-10-28T11:59:31Z&lt;/updated&gt; &lt;content&gt;&lt;/content&gt; &lt;apps:property name='subject' value='Some Relevant Subject'/&gt; &lt;apps:property name='label' value='MyCoolLabel'/&gt; &lt;apps:property name='shouldArchive' value='true'/&gt; &lt;/entry&gt; </code></pre> <p>Other "apps:property" verbs include:</p> <pre><code>&lt;apps:property name='hasTheWord' value=''/&gt; &lt;apps:property name='shouldAlwaysMarkAsImportant' value=''/&gt; &lt;apps:property name='doesNotHaveTheWord' value=''/&gt; </code></pre>
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    1. COWhat is the question? As a minor, getting the namespaces declarations from the input source in such way is not convenient. You should know your input schema in advance an add the namespaces URI to prefix bindings accordingly.
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    2. COI don't see how this is even slightly related to XPath ???
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      1. USDimitre Novatchev
    3. COThanks Dimitre - I notice someone has removed the xpath tag. Sorry, I'm pretty new to simplexml, and I thought the two were intertwined!
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