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<?php var_dump(round(microtime(true) * 1000)); ?>
Output for 5.0.0 - 5.0.1, 5.0.3 - 5.0.5, 7.1.26 - 7.1.33, 7.2.17 - 7.2.25, 7.3.0 - 7.3.12, 7.4.0
float(1431024372000)
Output for 5.4.20 - 5.4.21, 5.4.23 - 5.4.25, 5.4.27, 5.4.29 - 5.4.31, 5.4.34, 5.4.36 - 5.4.38, 5.4.44, 5.5.4, 5.5.9, 5.5.12 - 5.5.16, 5.5.19 - 5.5.20, 5.5.22 - 5.5.24, 5.5.28, 5.5.31, 5.5.33, 5.5.35 - 5.5.36, 5.6.1, 5.6.4 - 5.6.5, 5.6.8, 5.6.10 - 5.6.11, 5.6.13 - 5.6.14, 5.6.17 - 5.6.21, 5.6.24, 5.6.28, 7.0.0 - 7.0.5, 7.0.7, 7.0.14, 7.1.0, 7.2.0
float(1431024372004)
Output for 5.4.41, 5.5.6 - 5.5.8, 5.5.11, 5.5.21, 5.5.30, 5.5.32, 5.5.34, 5.5.38, 5.6.0, 5.6.2, 5.6.6, 5.6.9, 5.6.22, 5.6.25, 7.1.7
float(1431024372005)
Output for 7.1.6
float(1431024372013)
Output for 7.1.5
float(1431024372012)
Output for 5.4.17, 5.4.19, 5.4.22, 5.4.26, 5.4.28, 5.4.32, 5.4.35, 5.4.39, 5.4.42 - 5.4.43, 5.4.45, 5.5.0 - 5.5.3, 5.5.5, 5.5.10, 5.5.18, 5.5.25 - 5.5.27, 5.5.29, 5.5.37, 5.6.3, 5.6.7, 5.6.12, 5.6.15 - 5.6.16, 5.6.23, 7.0.6, 7.0.8 - 7.0.10, 7.0.20
float(1431024372003)
Output for 5.2.12, 5.3.1, 5.3.5, 5.3.9, 5.3.16, 5.3.18 - 5.3.20, 5.3.22 - 5.3.24, 5.3.28 - 5.3.29, 5.4.1, 5.4.6, 5.4.8 - 5.4.10, 5.4.15 - 5.4.16, 5.4.18, 5.4.40
float(1431024372002)
Output for 5.0.2, 5.1.0 - 5.1.6, 5.2.0 - 5.2.11, 5.2.13 - 5.2.17, 5.3.0, 5.3.2 - 5.3.4, 5.3.6 - 5.3.8, 5.3.10 - 5.3.15, 5.3.17, 5.3.21, 5.3.25 - 5.3.27, 5.4.0, 5.4.2 - 5.4.5, 5.4.7, 5.4.11 - 5.4.14
float(1431024372001)
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
float(0)

preferences:
159.77 ms | 402 KiB | 247 Q