3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(round(microtime(1) * 1000)); ini_set ('precision', 12); var_dump(round(microtime(1) * 1000));
Output for 7.1.25, 7.2.0 - 7.2.13, 7.3.0 - 7.3.1
float(1378727171000) float(1.378727171E+12)
Output for 7.0.20, 7.1.7
float(1378727171003) float(1.378727171E+12)
Output for 7.1.5 - 7.1.6
float(1378727171012) float(1.37872717101E+12)
Output for 7.0.14, 7.1.0
float(1378727171004) float(1.378727171E+12)
Output for 5.4.18, 5.4.21 - 5.4.27, 5.4.29 - 5.4.40, 5.4.42, 5.4.44 - 5.4.45, 5.5.0 - 5.5.4, 5.5.6 - 5.5.9, 5.5.12 - 5.5.15, 5.5.18 - 5.5.20, 5.5.23 - 5.5.25, 5.5.28 - 5.5.29, 5.5.32 - 5.5.36, 5.6.10 - 5.6.11, 5.6.15, 5.6.17 - 5.6.18, 5.6.20 - 5.6.22, 7.0.0 - 7.0.1, 7.0.3 - 7.0.7
float(1378734371004) float(1.378734371E+12)
Output for 5.4.16, 5.4.19, 5.4.28, 5.4.41, 5.5.16, 5.5.26, 5.5.31, 5.6.3, 5.6.6, 5.6.19, 7.0.2
float(1378734371003) float(1.378734371E+12)
Output for 5.6.28
float(1378727171005) float(1.37872717100E+12)
Output for 5.4.20, 5.4.43, 5.5.5, 5.5.10 - 5.5.11, 5.5.21 - 5.5.22, 5.5.27, 5.5.30, 5.6.0 - 5.6.2, 5.6.4, 5.6.7 - 5.6.9, 5.6.12 - 5.6.14, 5.6.16
float(1378734371005) float(1.37873437100E+12)
Output for 5.6.5
float(1378734371004) float(1.37873437100E+12)
Output for 5.2.8, 5.2.10 - 5.2.13, 5.2.16 - 5.2.17, 5.3.0 - 5.3.3, 5.3.5 - 5.3.10, 5.3.12, 5.3.15 - 5.3.17, 5.3.19, 5.3.21 - 5.3.24, 5.3.27 - 5.3.29, 5.4.0, 5.4.2, 5.4.4 - 5.4.5, 5.4.12, 5.4.15, 5.4.17
float(1378734371002) float(1.378734371E+12)
Output for 5.2.7, 5.2.9, 5.2.14 - 5.2.15, 5.3.4, 5.3.11, 5.3.13 - 5.3.14, 5.3.18, 5.3.20, 5.3.25 - 5.3.26, 5.4.1, 5.4.3, 5.4.6 - 5.4.11, 5.4.13 - 5.4.14
float(1378734371001) float(1.378734371E+12)
Output for 5.1.5, 5.2.6
float(1378734371002) float(1378734371000)
Output for 5.0.2, 5.0.5, 5.1.0 - 5.1.4, 5.1.6, 5.2.0 - 5.2.5
float(1378734371001) float(1378734371000)
Output for 5.0.0 - 5.0.1, 5.0.3 - 5.0.4
float(1378734371000) float(1378734371000)
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
float(0) float(0)

preferences:
156.04 ms | 402 KiB | 224 Q