3v4l.org

run code in 300+ PHP versions simultaneously
<?php $obj = new DateTimeImmutable('2021-03-18 14:38:45.008455'); $time = (float) $obj->format('U.u'); $recreated = DateTimeImmutable::createFromFormat('U.u', (string) $time); var_dump($obj, $recreated, $recreated == $obj); $time = json_decode($obj->format('U.u')); $recreated = DateTimeImmutable::createFromFormat('U.u', (string) $time); var_dump($obj, $recreated, $recreated == $obj);

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0180.00316.88
8.3.50.0040.01116.95
8.3.40.0090.00619.04
8.3.30.0080.00819.04
8.3.20.0040.00424.18
8.3.10.0050.00324.66
8.3.00.0110.00426.16
8.2.180.0160.00625.92
8.2.170.0120.00319.25
8.2.160.0110.00422.96
8.2.150.0080.00025.66
8.2.140.0000.00724.66
8.2.130.0040.00426.16
8.2.120.0040.00421.30
8.2.110.0090.00022.34
8.2.100.0070.00418.28
8.2.90.0000.00918.34
8.2.80.0000.00819.41
8.2.70.0060.00318.00
8.2.60.0000.00818.29
8.2.50.0060.00318.05
8.2.40.0040.00418.47
8.2.30.0060.00318.38
8.2.20.0040.00418.45
8.2.10.0040.00419.65
8.2.00.0040.00419.65
8.1.280.0110.01125.92
8.1.270.0040.00424.22
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0040.00422.40
8.1.230.0000.01221.21
8.1.220.0000.00917.91
8.1.210.0000.00919.16
8.1.200.0060.00317.63
8.1.190.0060.00317.72
8.1.180.0050.00319.39
8.1.170.0000.00819.00
8.1.160.0040.00419.19
8.1.150.0040.00419.09
8.1.140.0000.00719.25
8.1.130.0030.00317.93
8.1.120.0080.00017.95
8.1.110.0060.00317.86
8.1.100.0000.00817.82
8.1.90.0040.00417.97
8.1.80.0030.00517.80
8.1.70.0000.00817.90
8.1.60.0040.00418.04
8.1.50.0030.00617.97
8.1.40.0000.00817.82
8.1.30.0000.00818.09
8.1.20.0080.00018.10
8.1.10.0050.00317.97
8.1.00.0030.00517.94
8.0.300.0000.00720.34
8.0.290.0060.00317.13
8.0.280.0070.00018.79
8.0.270.0040.00418.44
8.0.260.0030.00317.51
8.0.250.0000.00717.40
8.0.240.0000.00717.38
8.0.230.0070.00017.39
8.0.220.0040.00417.36
8.0.210.0030.00317.30
8.0.200.0000.00817.26
8.0.190.0080.00017.40
8.0.180.0040.00417.45
8.0.170.0040.00417.24
8.0.160.0000.00817.28
8.0.150.0050.00317.25
8.0.140.0040.00417.28
8.0.130.0030.00313.76
8.0.120.0060.00317.45
8.0.110.0040.00417.34
8.0.100.0080.00017.34
8.0.90.0050.00317.25
8.0.80.0100.01117.25
8.0.70.0040.00417.32
8.0.60.0000.00717.14
8.0.50.0040.00417.25
8.0.30.0060.01017.24
8.0.20.0090.00917.36
8.0.10.0250.00417.30
8.0.00.0290.00317.50
7.4.330.0030.00415.55
7.4.320.0000.00716.97
7.4.300.0060.00316.91
7.4.290.0040.00416.84
7.4.280.0060.00316.79
7.4.270.0000.00816.97
7.4.260.0000.00613.66
7.4.250.0040.00416.86
7.4.240.0030.00517.08
7.4.230.0040.00216.98
7.4.220.0030.00316.94
7.4.210.0070.01216.78
7.4.200.0000.00716.93
7.4.160.0070.00716.98
7.4.150.0140.01416.83
7.4.140.0160.01216.84
7.4.130.0290.00716.87
7.4.120.0240.01216.66
7.4.110.0150.01516.75
7.4.100.0150.01216.87
7.4.90.0220.01016.78
7.4.80.0160.01616.71
7.4.70.0210.00916.64
7.4.60.0140.01316.72
7.4.50.0210.00616.78
7.4.40.0180.01116.65
7.4.30.0260.01316.63
7.4.20.0200.01116.84
7.4.10.0230.00916.64
7.4.00.0060.01116.82
7.3.330.0030.00316.72
7.3.320.0060.00013.47
7.3.310.0000.00816.74
7.3.300.0040.00416.56
7.3.290.0100.00616.56
7.3.270.0240.01116.46
7.3.260.0120.01516.62
7.3.250.0220.01316.61
7.3.240.0030.02016.58
7.3.230.0210.00416.55
7.3.220.0260.00616.49
7.3.210.0190.01116.60
7.3.200.0140.01416.63
7.3.190.0230.01216.56
7.3.180.0280.00316.62
7.3.170.0260.00416.52
7.3.160.0220.00616.49
7.3.150.0210.01016.55
7.3.140.0200.00916.63
7.3.130.0220.00816.58
7.3.120.0130.01616.65
7.3.110.0190.01016.56
7.3.100.0180.00916.49
7.3.90.0150.01216.78
7.3.80.0190.01116.58
7.3.70.0130.00816.71
7.3.60.0170.00316.68
7.3.50.0030.01716.75
7.3.40.0260.00016.68
7.3.30.0200.01116.66
7.3.20.0140.01116.67
7.3.10.0240.01016.69
7.3.00.0150.01116.54

preferences:
58.68 ms | 401 KiB | 5 Q