3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(round(microtime(1) * 1000));
Output for 5.4.15 - 5.4.16, 5.4.18 - 5.4.19, 5.4.23 - 5.4.24, 5.4.26, 5.4.28, 5.4.31 - 5.4.41, 5.4.44, 5.5.1 - 5.5.3, 5.5.6, 5.5.12 - 5.5.13, 5.5.15, 5.5.18, 5.5.21, 5.5.23 - 5.5.27, 5.5.33, 5.5.36 - 5.5.37, 5.6.0, 5.6.3, 5.6.6, 5.6.8, 5.6.10 - 5.6.12, 5.6.14 - 5.6.16, 5.6.18 - 5.6.24, 5.6.26 - 5.6.27, 7.0.0, 7.0.2 - 7.0.11, 7.0.14 - 7.0.17, 7.0.19 - 7.0.20, 7.1.0 - 7.1.1, 7.1.7, 7.2.0
float(1378726630003)
Output for 5.6.1, 5.6.5, 5.6.13, 5.6.25, 7.1.5 - 7.1.6
float(1378726630005)
Output for 7.1.4
float(1378726630007)
Output for 5.6.17, 7.0.13, 7.1.3
float(1378726630006)
Output for 7.1.2
float(1378726630017)
Output for 5.4.29, 5.5.16, 5.6.2, 5.6.4, 5.6.7, 5.6.9, 5.6.28 - 5.6.30, 7.0.18
float(1378726630004)
Output for 7.0.12
float(1378726630021)
Output for 7.0.1
float(1378726630009)
Output for 5.2.16, 5.3.2 - 5.3.3, 5.3.5, 5.3.9 - 5.3.11, 5.3.13 - 5.3.15, 5.3.27, 5.4.2 - 5.4.4, 5.4.8, 5.4.11, 5.4.17, 5.4.20 - 5.4.22, 5.4.25, 5.4.27, 5.4.30, 5.4.42 - 5.4.43, 5.4.45, 5.5.0, 5.5.4 - 5.5.5, 5.5.7 - 5.5.11, 5.5.14, 5.5.19 - 5.5.20, 5.5.22, 5.5.28 - 5.5.32, 5.5.34 - 5.5.35, 5.5.38
float(1378726630002)
Output for 5.0.0 - 5.0.1, 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.15, 5.2.17, 5.3.0 - 5.3.1, 5.3.4, 5.3.6 - 5.3.8, 5.3.12, 5.3.16 - 5.3.26, 5.3.28 - 5.3.29, 5.4.0 - 5.4.1, 5.4.5 - 5.4.7, 5.4.9 - 5.4.10, 5.4.12 - 5.4.14
float(1378726630001)
Output for 5.0.2 - 5.0.4
float(1378726630000)
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
float(0)

preferences:
190.29 ms | 402 KiB | 232 Q