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copied!<p>I think what you want to do, is more or less to reverse the keys and values returned from <code>PhpFileAndContent</code>. Said class returns a list of <code>filepath => source</code>, and you want to first reverse the mapping so it is <code>source => filepath</code> and then expand <code>source</code> for each class defined in <code>source</code>, so it will be <code>class1 => filepath, class2 => filepath</code>.</p> <p>It should be easy as in your <code>getChildren()</code> you can simply access <code>$this->key()</code> to get the current file path for the source you are running <code>getDefinedClasses()</code> on. You can write <code>getDefinedClasses</code> as <code>getDefinedClasses($path, $source)</code> and instead of returning an indexed array of all the classes, it will return a dictionary where each value from the current indexed array is a key in the dictionary and the value is the filepath where that class was defined.</p> <p>Then it will come out just as you want.</p> <p>The other option is to drop your use of <code>RecursiveArrayIterator</code> and instead write your own iterator that is initialized (in <code>getChildren</code>) as</p> <pre><code>return new FilePathMapperIterator($this->key,getDefinedClasses($this->current())); </code></pre> <p>and then <code>FilePathMapperIterator</code> will convert the class array from <code>getDefinedClasses</code> to the <code>class => filepath</code> mapping I described by simply iterating over the array and returning the current class in <code>key()</code> and always returning the specified filepath in <code>current()</code>.</p> <p>I think the latter is more cool, but definitely more code so its unlikely that I would have gone that way if I can adapt <code>getDefinedClasses()</code> for my needs.</p>

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