3v4l.org

run code in 300+ PHP versions simultaneously
<?php printf("%0.17f", (0.1 + 0.2) ); echo PHP_EOL; echo "Precision: " . ini_get('precision') . PHP_EOL; echo (0.1 + 0.2) . PHP_EOL; echo ((0.1 + 0.2) === 0.3 ? 'true' : 'false') . PHP_EOL; ini_set('precision', 17); echo "Precision: " . ini_get('precision') . PHP_EOL; echo (0.1 + 0.2) . PHP_EOL; echo ((0.1 + 0.2) === 0.3 ? 'true' : 'false') . PHP_EOL; ini_set('precision', 33); echo "Precision: " . ini_get('precision') . PHP_EOL; echo (0.1 + 0.2) . PHP_EOL; echo ((0.1 + 0.2) === 0.3 ? 'true' : 'false') . PHP_EOL;
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
0.30000000000000004 Precision: 14 0.3 false Precision: 17 0.3 false Precision: 33 0.3 false
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
0.30000000000000004 Precision: 14 0.3 false Precision: 17 0.30000000000000004 false Precision: 33 0.300000000000000044408920985006262 false
preferences:
268.06 ms | 402 KiB | 330 Q