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run code in 200+ php & hhvm versions
Bugs & Features
<?php function fib($m){$j=0;$k=1;for($i=0;$i<=$m;$i++){$l=$k;$k=$j+$k;$j=$l;}return$k;} var_dump(fib(1000));
Output for 4.3.3 - 7.1.7
float(1.1379692539836E+209)
Output for 4.3.0 - 4.3.2
float(0.E+79)