The $i+=2 in your loop does nothing. The for will put the next value from the list into $i without checking its current value. You want 
    for ($i=0; $i<=$length2; $i+=2){
        push @array2, $array[$i];
    }
    for ($i=1; $i<=$length; $i+=2){
        push @array2, $array[$i];
    }

[download]
or 
    for $i(0..$length/2){
        push @array2, $array[$i*2];
    }
    for $i(0..$length/2){
        push @array2, $array[$i*2+1];
    }

[download]

In reply to Re: Array rearrangement hangup. by ikegami
in thread Array rearrangement hangup. by Andrew_Levenson

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