3v4l.org

run code in 300+ PHP versions simultaneously
<?php $float = (double) 0; $float_sma = 1 / 1000000; var_dump($float, $float_sma); $is_float = (bool) $float; $is_float_sma = (bool) $float_sma; echo'<hr/>'; var_dump($is_float, $is_float_sma);
Output for 4.3.3 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 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
float(0) float(1.0E-6) <hr/>bool(false) bool(true)
Output for 4.3.0 - 4.3.2
float(0) float(1.E-6) <hr/>bool(false) bool(true)
preferences:
268.83 ms | 401 KiB | 355 Q