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<?php $arr = Array ( '0' => Array ( 'pa_flavour' => 101 ), '1' => Array ( 'pa_flavour' => 102 ), '2' => Array ( 'pa_flavour' => 103 ), '3' => Array ( 'pa_flavour' => 104 ), '4' => Array ( 'pa_flavour' => 100 ), '5' => Array ( 'pa_bottle-size' => 108 ), '6' => Array ( 'pa_nicotine-strength' => 109 ), '7' => Array ( 'pa_nicotine-strength' => 110 ) ); $res = []; foreach($arr as $k => $v){ foreach ($v as $key => $value) { $res[$key][] = $value; } } print_r($res);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [pa_flavour] => Array ( [0] => 101 [1] => 102 [2] => 103 [3] => 104 [4] => 100 ) [pa_bottle-size] => Array ( [0] => 108 ) [pa_nicotine-strength] => Array ( [0] => 109 [1] => 110 ) )

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