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<?php $items = Array ( 'Oranges' => Array ( 'Name' => 'Oranges', 'l.VA123' => 17, 'l.MA123' => 12, 'l.GA123' => 9, 'l.CT123' => 5, ), 'Apple' => Array ( 'Name' => 'Apple', 'l.CA123' => 13, ), 'Grapes' => Array ( 'Name' => 'Grapes', 'l.WI123' => 8, 'l.FL123' => 5, ), ); // known keys $keys = [ 'l.VA123' => 0, 'l.MA123' => 0, 'l.GA123' => 0, 'l.CT123' => 0, 'l.CA123' => 0, 'l.WI123' => 0, 'l.FL123' => 0, ]; foreach ($items as &$row) { $row += $keys; } var_export($items);
Output for git.master, git.master_jit, rfc.property-hooks
array ( 'Oranges' => array ( 'Name' => 'Oranges', 'l.VA123' => 17, 'l.MA123' => 12, 'l.GA123' => 9, 'l.CT123' => 5, 'l.CA123' => 0, 'l.WI123' => 0, 'l.FL123' => 0, ), 'Apple' => array ( 'Name' => 'Apple', 'l.CA123' => 13, 'l.VA123' => 0, 'l.MA123' => 0, 'l.GA123' => 0, 'l.CT123' => 0, 'l.WI123' => 0, 'l.FL123' => 0, ), 'Grapes' => array ( 'Name' => 'Grapes', 'l.WI123' => 8, 'l.FL123' => 5, 'l.VA123' => 0, 'l.MA123' => 0, 'l.GA123' => 0, 'l.CT123' => 0, 'l.CA123' => 0, ), )

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