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run code in 200+ php & hhvm versions
Bugs & Features
<?php echo serialize(round(0.215, 2));
based on WgN44
Output for 5.6.28, 7.0.20 - 7.2.0
d:0.22;
Output for 5.3.17 - 5.6.21, 7.0.0 - 7.0.6
d:0.220000000000000001110223;