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<?php $a = array( array( 'week' => 26, '#orders_CA' => 0, 'cost_CA' => 0, '#orders_US' => 3, 'cost_US' => 18.99, '#orders_INTERNATIONAL' => 0, 'cost_INTERNATIONAL' => 0 ), array( 'week' => 26, '#orders_CA' => 0, 'cost_CA' => 0, '#orders_US' => 0, 'cost_US' => 0, '#orders_INTERNATIONAL' => 22, 'cost_INTERNATIONAL' => 32 ), ); $keys = array_keys($a[0]); $res = call_user_func_array('array_map', array_merge(array(function() { return array_sum(func_get_args()); }), $a)); print_r($res); print_r(array_combine($keys, $res));
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => 52 [1] => 0 [2] => 0 [3] => 3 [4] => 18.99 [5] => 22 [6] => 32 ) Array ( [week] => 52 [#orders_CA] => 0 [cost_CA] => 0 [#orders_US] => 3 [cost_US] => 18.99 [#orders_INTERNATIONAL] => 22 [cost_INTERNATIONAL] => 32 )

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