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<?php $array = [ ['group' => 'A', 'name' => 'Ann', 'age' => 19], ['group' => 'B', 'name' => 'Bea', 'age' => 26], ['group' => 'A', 'name' => 'Cam', 'age' => 32], ['group' => 'B', 'name' => 'Des', 'age' => 24] ]; $result = []; foreach ($array as ['group' => $group, 'group' => $result[$group]['group'], 'name' => $name, 'age' => $result[$group][$name]]); var_export($result);
Output for git.master, git.master_jit, rfc.property-hooks
array ( 'A' => array ( 'group' => 'A', 'Ann' => 19, 'Cam' => 32, ), 'B' => array ( 'group' => 'B', 'Bea' => 26, 'Des' => 24, ), )

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