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); $time = json_decode($obj->format('U.u')); $recreated = DateTimeImmutable::createFromFormat('U.u', json_encode($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)
8.3.40.0090.00618.92
8.3.30.0060.00919.09
8.3.20.0070.00024.18
8.3.10.0030.00624.66
8.3.00.0000.00726.16
8.2.170.0110.00419.20
8.2.160.0070.00722.96
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0000.00820.99
8.2.110.0030.00721.15
8.2.100.0090.00318.16
8.2.90.0000.00819.53
8.2.80.0000.00818.05
8.2.70.0000.00817.75
8.2.60.0090.00019.63
8.2.50.0040.00417.88
8.2.40.0080.00018.29
8.2.30.0040.00418.17
8.2.20.0050.00318.30
8.2.10.0040.00419.43
8.2.00.0070.00019.30
8.1.270.0080.00023.99
8.1.260.0060.00326.35
8.1.250.0060.00328.09
8.1.240.0000.01022.81
8.1.230.0090.00317.95
8.1.220.0000.00817.79
8.1.210.0060.00318.77
8.1.200.0100.00017.38
8.1.190.0040.00417.48
8.1.180.0050.00318.10
8.1.170.0030.00517.62
8.1.160.0070.00018.99
8.1.150.0080.00019.04
8.1.140.0040.00418.99
8.1.130.0050.00220.25
8.1.120.0030.00617.82
8.1.110.0040.00417.78
8.1.100.0030.00517.72
8.1.90.0050.00217.66
8.1.80.0060.00317.74
8.1.70.0070.00017.80
8.1.60.0050.00317.80
8.1.50.0080.00017.79
8.1.40.0030.00817.74
8.1.30.0040.00417.80
8.1.20.0030.00517.94
8.1.10.0030.00517.82
8.1.00.0050.00317.77
8.0.300.0050.00218.77
8.0.290.0060.00317.13
8.0.280.0030.00318.60
8.0.270.0030.00318.33
8.0.260.0000.00718.68
8.0.250.0000.00817.30
8.0.240.0000.00617.30
8.0.230.0070.00017.27
8.0.220.0000.00717.24
8.0.210.0030.00417.26
8.0.200.0030.00317.30
8.0.190.0050.00317.31
8.0.180.0020.00517.24
8.0.170.0090.00017.27
8.0.160.0050.00217.27
8.0.150.0040.00417.21
8.0.140.0000.00717.21
8.0.130.0000.00613.67
8.0.120.0000.01117.22
8.0.110.0050.00317.06
8.0.100.0040.00417.27
8.0.90.0050.00217.04
8.0.80.0050.01017.18
8.0.70.0070.00017.04
8.0.60.0070.00017.09
8.0.50.0070.00017.34
8.0.30.0090.01017.11
8.0.20.0120.00917.29
8.0.10.0120.01117.21
8.0.00.0150.00717.32
7.4.330.0000.00515.55
7.4.320.0040.00416.83
7.4.300.0000.00716.76
7.4.290.0040.00416.70
7.4.280.0070.00016.68
7.4.270.0040.00416.91
7.4.260.0030.00313.48
7.4.250.0040.00416.66
7.4.240.0030.00316.74
7.4.230.0000.00716.66
7.4.220.0030.00316.62
7.4.210.0080.00816.67
7.4.200.0040.00416.66
7.4.160.0060.01516.64
7.4.150.0030.02016.80
7.4.140.0040.01816.77
7.4.130.0070.01316.59
7.4.120.0110.01016.59
7.4.110.0120.00916.62
7.4.100.0060.01316.82
7.4.90.0110.00516.52
7.4.80.0040.01416.48
7.4.70.0100.00616.55
7.4.60.0030.01316.53
7.4.50.0140.00316.58
7.4.40.0070.01416.54
7.4.30.0150.00016.45
7.4.20.0060.00916.64
7.4.10.0070.01016.71
7.4.00.0130.00716.67
7.3.330.0030.00316.44
7.3.320.0030.00313.42
7.3.310.0000.00816.66
7.3.300.0000.00716.39
7.3.290.0120.00416.49
7.3.270.0130.00716.50
7.3.260.0140.00716.38
7.3.250.0160.00516.54
7.3.240.0100.01016.62
7.3.230.0070.01416.46
7.3.220.0040.01516.46
7.3.210.0100.00716.46
7.3.200.0130.00016.46
7.3.190.0110.00416.51
7.3.180.0110.00416.45
7.3.170.0070.00716.50
7.3.160.0070.01016.46
7.3.150.0090.00616.50
7.3.140.0030.01316.41
7.3.130.0110.00416.44
7.3.120.0130.00616.52
7.3.110.0130.00616.36
7.3.100.0060.01316.37
7.3.90.0070.00716.61
7.3.80.0060.01316.30
7.3.70.0110.00916.59
7.3.60.0120.00916.55
7.3.50.0080.00816.61
7.3.40.0120.00816.57
7.3.30.0120.00616.61
7.3.20.0110.00416.64
7.3.10.0170.00016.50
7.3.00.0070.01116.51

preferences:
59.05 ms | 400 KiB | 5 Q