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<?php var_dump(0.1 + 0.7 === 0.8); // bool(false) var_dump((0.1 + 0.7) * 10); // float(7.999999999999999) var_dump((int) ((0.1 + 0.7) * 10)); // int(7) <- The classic! // It hides well, too: echo 0.1 + 0.2.\PHP_EOL; // 0.3 <- The float value will be coerced to string. printf("%.20f\n", 0.1 + 0.2); // 0.30000000000000004441
Output for 8.2.31 - 8.2.33, 8.3.0 - 8.3.33, 8.4.1 - 8.4.24, 8.5.0 - 8.5.9
bool(false) float(7.999999999999999) int(7) 0.3 0.30000000000000004441
preferences:
48.41 ms | 782 KiB | 4 Q