note: this varian loop have same result

$ time perl -e 'for($i=0;$i<=1000;$i++){for($j=0;$j<=1000;$j++){for($k=0;$k<=100;$k++){}}}'

real    0m7.867s
user    0m7.860s
sys 0m0.000s

$ time php -r 'for($i=0;$i<=1000;$i++){for($j=0;$j<=1000;$j++){for($k=0;$k<=100;$k++){}}}'

real    0m1.717s
user    0m1.712s
sys 0m0.000s