Sort and search an array of objects by one key

Question

$data = Array ( 
           [0] => stdClass Object ( [ID] => 1 [top_level] => gold [sub_level] => coal ) 
           [1] => stdClass Object ( [ID] => 3 [top_level] => bronze [sub_level] => dirt ) 
           [2] => stdClass Object ( [ID] => 4 [top_level] => silver [sub_level] => aluminum ) 
    )

With PHP, how can I sort, for example, by [sub_level] ascending (or descending) to produce the following?

Array ( 
       [0] => stdClass Object ( [ID] => 4 [top_level] => silver [sub_level] => aluminum ) 
       [1] => stdClass Object ( [ID] => 1 [top_level] => gold [sub_level] => coal ) 
       [2] => stdClass Object ( [ID] => 3 [top_level] => bronze [sub_level] => dirt )  
)

Also, what would be the most efficient way to search [sub_level] for a specific value?

score 0 · Answer 1 · edited May 23 '17 at 12:27

0

You can use usort. In the function, compare the two properties you want and return an appropriate value. Consult the suggested duplicate for more info.

edited May 23 '17 at 12:27

Community

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1

answered Aug 19 '12 at 21:58

Niet the Dark Absol

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Sort and search an array of objects by one key

1 Answers1