Sphinx search filter to handle arrays

I have a database of objects which have each been assigned to multiple categories. I am using sphinx search to search the products but w开发者_如何转开发ould also like to filter the results to only objects that match an array of categories.

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You may use SetFilter exclude option to solve this.

For example you have following category IDs:1,2,3,4,5 and you need to search in 1 or 3 category.

$sphinx->SetFilter("category_id", (2,4,5), true);

code above will exclude from search categories 2,4 and 5, so in our case search will perform only in category 1 and 3.