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'); $recreated = DateTimeImmutable::createFromFormat('U.u', json_encode($time)); var_dump($obj, $recreated, $recreated == $obj); $time = $obj->format('U.u'); $recreated = DateTimeImmutable::createFromFormat('U.u', $time); var_dump($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)
8.3.70.0100.01317.00
8.3.60.0120.00317.13
8.3.50.0070.00716.49
8.3.40.0040.01219.09
8.3.30.0110.00418.86
8.3.20.0080.00024.18
8.3.10.0040.00424.66
8.3.00.0040.00426.16
8.2.180.0110.01125.92
8.2.170.0100.00719.07
8.2.160.0100.00322.96
8.2.150.0070.00025.66
8.2.140.0070.00024.66
8.2.130.0080.00026.16
8.2.120.0080.00021.16
8.2.110.0040.00420.66
8.2.100.0110.00417.97
8.2.90.0000.00817.88
8.2.80.0000.00819.03
8.2.70.0030.00617.88
8.2.60.0000.00818.05
8.2.50.0000.00818.07
8.2.40.0030.00619.94
8.2.30.0030.00618.21
8.2.20.0080.00018.33
8.2.10.0030.00619.46
8.2.00.0080.00019.47
8.1.280.0090.00625.92
8.1.270.0110.00024.07
8.1.260.0050.00326.35
8.1.250.0070.00028.09
8.1.240.0070.01119.09
8.1.230.0080.00417.95
8.1.220.0040.00417.77
8.1.210.0030.00618.77
8.1.200.0030.00617.60
8.1.190.0040.00417.61
8.1.180.0040.00418.10
8.1.170.0040.00419.03
8.1.160.0040.00419.01
8.1.150.0020.00519.02
8.1.140.0040.00419.15
8.1.130.0070.00020.29
8.1.120.0070.00017.80
8.1.110.0000.00917.77
8.1.100.0000.00917.77
8.1.90.0000.00717.70
8.1.80.0050.00217.85
8.1.70.0030.00317.85
8.1.60.0030.00517.75
8.1.50.0040.00417.84
8.1.40.0000.01117.82
8.1.30.0070.00317.76
8.1.20.0000.00817.97
8.1.10.0080.00017.81
8.1.00.0040.00417.85
8.0.300.0040.00418.77
8.0.290.0000.00817.00
8.0.280.0080.00018.67
8.0.270.0050.00218.25
8.0.260.0030.00318.66
8.0.250.0000.00817.18
8.0.240.0000.00717.27
8.0.230.0000.00717.36
8.0.220.0030.00317.21
8.0.210.0000.00717.19
8.0.200.0040.00417.25
8.0.190.0070.00017.25
8.0.180.0000.00717.31
8.0.170.0000.00917.24
8.0.160.0080.00017.38
8.0.150.0000.00817.20
8.0.140.0040.00417.25
8.0.130.0060.00013.68
8.0.120.0000.01117.27
8.0.110.0040.00417.26
8.0.100.0040.00417.30
8.0.90.0040.00417.04
8.0.80.0060.00917.10
8.0.70.0040.00417.36
8.0.60.0050.00217.23
8.0.50.0040.00417.20
8.0.30.0090.00917.21
8.0.20.0160.01317.25
8.0.10.0040.01317.33
8.0.00.0120.00817.27
7.4.330.0050.00015.55
7.4.320.0060.00016.78
7.4.300.0030.00316.87
7.4.290.0030.00316.87
7.4.280.0040.00416.86
7.4.270.0070.00016.89
7.4.260.0000.00513.45
7.4.250.0030.00316.88
7.4.240.0040.00416.81
7.4.230.0030.00316.74
7.4.220.0050.00216.97
7.4.210.0050.01016.82
7.4.200.0000.00916.59
7.4.160.0180.01216.89
7.4.150.0040.01816.77
7.4.140.0180.00416.75
7.4.130.0060.00916.59
7.4.120.0060.00916.59
7.4.110.0070.01016.56
7.4.100.0110.00616.74
7.4.90.0180.00016.77
7.4.80.0120.00816.52
7.4.70.0110.00716.78
7.4.60.0090.00816.61
7.4.50.0130.00316.55
7.4.40.0130.00916.51
7.4.30.0060.00916.66
7.4.20.0160.00316.57
7.4.10.0070.01116.64
7.4.00.0070.00716.78
7.3.330.0000.00716.69
7.3.320.0000.00513.32
7.3.310.0000.00716.68
7.3.300.0000.00716.54
7.3.290.0050.01016.50
7.3.270.0060.01016.51
7.3.260.0130.00316.54
7.3.250.0080.00616.58
7.3.240.0070.01016.49
7.3.230.0070.01116.43
7.3.220.0090.01316.49
7.3.210.0070.01116.47
7.3.200.0090.00916.47
7.3.190.0150.00016.54
7.3.180.0040.01116.50
7.3.170.0120.00616.53
7.3.160.0110.01116.43
7.3.150.0040.01216.49
7.3.140.0150.00616.52
7.3.130.0070.01116.46
7.3.120.0060.00916.42
7.3.110.0140.00016.28
7.3.100.0140.00316.43
7.3.90.0100.00316.70
7.3.80.0170.00016.39
7.3.70.0110.00316.53
7.3.60.0110.00416.58
7.3.50.0110.00316.58
7.3.40.0090.00916.61
7.3.30.0120.00616.63
7.3.20.0090.01216.72
7.3.10.0040.01816.52
7.3.00.0340.00916.58

preferences:
58.46 ms | 401 KiB | 5 Q