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<?php $arr =Array ( 0 => Array ( 0 => 8147, 1 => 3 ), 1 => Array ( 0 => 8204, 1 => 20 ) ); $match_array = array_column($arr,0); $str = implode(",",$match_array); echo $str;
Output for git.master, git.master_jit, rfc.property-hooks
8147,8204

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