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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++){ echo(" i: ".$i); $arr[$i]=$tmp0; $tmp0 = $arr[$i+1]; echo(" tmp0: ".$tmp0); $arr[$i+1]=$tmp1; $tmp1 = $arr[$j]; 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
i: 0 tmp0: 2 tmp1: a i: 2 tmp0: 4 tmp1: b i: 4 tmp0: 6 tmp1: c i: 6 tmp0: 8 tmp1: d i: 8 tmp0: 10 tmp1: e i: 10 tmp0: b tmp1: f i: 12 tmp0: d tmp1: g i: 14 tmp0: f tmp1: h i: 16 tmp0: h tmp1: i 1 a 2 a 4 b 6 c 8 d 10 e b f d g f h i j

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