Hi, 
I have created a post-like structure like this: 
Page: Posts 
Page: Category 
Posts has a field called "category" which is derived from the Category page's children - these children simply have a title field e.g. ("Events", "News" etc) 
I would like to filter the children of Posts based on this field, something like this: 
$posts = $pages->get('/posts/')->children("category=events"); 
However category is a number, in my case Events is the number 1014. Obviously I want to filter by a string instead. How can I do this? 
Thanks in advance for your help! 
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Apologies, after I wrote this I saw a related page at the bottom. Here is the solution for completeness: 
http://processwire.c...a-selector-tag/ 
$category = $pages->get("/category/events/"); 
$posts = $pages->get('/posts/')->children("category=$category"); 
Nice and easy