3v4l.org

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<?php $theValue = 10000;// the max $bottom = 1; $pi = 0; for ($i = 1; $i<$theValue; $i++){ if ($i % 2 == 1){ $pi += 4 / $bottom; } else { $pi -= 4 / $bottom; } $bottom += 2; } var_dump($pi);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
float(3.1416926635905345)
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
float(3.1416926635905)

preferences:
93.86 ms | 1991 KiB | 4 Q