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<?php $fake_categories = [ [ 'handle' => 'food', 'nice_name' => 'Food' ], [ 'handle' => 'travel', 'nice_name' => 'Travel' ], [ 'handle' => 'fashion', 'nice_name' => 'Fashion' ], [ 'handle' => 'food', 'nice_name' => 'Food1' ] ]; //$unique = array_unique($fake_categories, SORT_REGULAR); $unique = array_values(array_column($fake_categories, null, 'handle')); print_r($unique);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => Array ( [handle] => food [nice_name] => Food1 ) [1] => Array ( [handle] => travel [nice_name] => Travel ) [2] => Array ( [handle] => fashion [nice_name] => Fashion ) )

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