<?php $sum=(0.5+0.2+0.2+0.1); $sum2 = 1; var_dump('$sum: ', $sum); var_dump('$sum2: ', $sum2); var_dump('$sum == $sum2: ', $sum==$sum2); var_dump('0.5+0.3+0.2+0.0', 0.5+0.3+0.2+0.0);
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