3v4l.org

run code in 300+ PHP versions simultaneously
<?php $total = 0; for ($i = 0; $i < 10; $i++) { $total += 0.1; } var_dump($total); echo(($total) == 1);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
float(0.9999999999999999)
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33
float(1)

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141.16 ms | 402 KiB | 170 Q