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<?php $arr = array ( 'expert_skills' => ',1,2,3,7', 'inter_skills' => ',9,10,7,8,9', 'beginner_skills' => ',6,8' ); $arr = array_map(function ($v) { return array_filter(explode(',', $v)); }, $arr); print_r($arr);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [expert_skills] => Array ( [1] => 1 [2] => 2 [3] => 3 [4] => 7 ) [inter_skills] => Array ( [1] => 9 [2] => 10 [3] => 7 [4] => 8 [5] => 9 ) [beginner_skills] => Array ( [1] => 6 [2] => 8 ) )

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