3v4l.org

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<?php var_dump(floor((0.1+0.7)*10)); echo PHP_EOL; var_dump(bcadd(0.1, 0.7)); echo PHP_EOL; var_dump(floor( bcmul( bcadd(0.1, 0.7), 10 ) ));

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54.97 ms | 402 KiB | 5 Q