3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump($float = unpack('E', hex2bin('2800322f96213747'))[1]); var_dump(number_format($float));
Output for 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
float(5.138075498868372E-116) string(1) "0"

preferences:
80.43 ms | 402 KiB | 59 Q