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<?php $arr = array(1,2,3,4,5,6,7,8,9,10,'a','b','c','d','e','f','g','h','i','j'); $tmp0 = $arr[0]; $tmp1 = $arr[10]; $n=10; for($i=0,$j=$n;$i<count($arr)-2;$i+=2,$j++){ $arr[$i]=$tmp0; $tmp0 = $arr[$i+1]; echo(" tmp0: ".$tmp0); $arr[$i+1]=$tmp1; $tmp1 = $arr[$j+1]; echo(" tmp1: ".$tmp1); } echo("\n"); for($i=0;$i<count($arr);$i++){ echo($arr[$i]." "); } ?>
Output for git.master, git.master_jit, rfc.property-hooks
tmp0: 2 tmp1: b tmp0: 4 tmp1: c tmp0: 6 tmp1: d tmp0: 8 tmp1: e tmp0: 10 tmp1: f tmp0: b tmp1: g tmp0: d tmp1: h tmp0: f tmp1: i tmp0: h tmp1: j 1 a 2 b 4 c 6 d 8 e 10 f b g d h f i i j

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