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$ time perl -e ''

...
user    0m0.020s
sys 0m0.000s

note: this varian loop have same result

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

note: if we not include startup time at above code, 
at 100k PHP and Perl have almost similiar performance
...
user    0m0.016s
sys 0m0.012s