3v4l.org

run code in 300+ PHP versions simultaneously
<?php $dateOld = new \DateTimeImmutable('2020-01-01'); echo $dateOld->modify("last day of last month")->format('Y-m-d'); echo PHP_EOL; echo $dateOld->modify("first day of next month")->format('Y-m-d');

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)
8.4.140.0170.00517.36
8.4.130.0090.00918.70
8.4.120.0150.00424.04
8.4.110.0120.00718.97
8.4.100.0010.00719.09
8.4.90.0050.00322.17
8.4.80.0040.00420.43
8.4.70.0090.00718.99
8.4.60.0110.00818.69
8.4.50.0110.00519.60
8.4.40.0070.01120.30
8.4.30.0090.00920.42
8.4.20.0030.00719.81
8.4.10.0060.00919.68
8.3.270.0100.00916.64
8.3.260.0140.00516.49
8.3.250.0100.00818.79
8.3.240.0050.00417.21
8.3.230.0140.00416.57
8.3.220.0110.00818.89
8.3.210.0060.00118.46
8.3.200.0050.00416.60
8.3.190.0060.00317.41
8.3.180.0050.00318.36
8.3.170.0150.00316.56
8.3.160.0160.00316.50
8.3.150.0030.01417.36
8.3.140.0050.00317.12
8.3.130.0060.00318.65
8.3.120.0060.01018.80
8.3.110.0100.00020.94
8.3.100.0030.00624.06
8.3.90.0000.00826.77
8.3.80.0030.00717.97
8.3.70.0090.00916.88
8.3.60.0140.00018.31
8.3.50.0090.00723.67
8.3.40.0110.00418.84
8.3.30.0110.00418.93
8.3.20.0000.00721.95
8.3.10.0070.00020.10
8.3.00.0040.00420.72
8.2.290.0100.00920.36
8.2.280.0090.00918.77
8.2.270.0090.00917.04
8.2.260.0040.00420.58
8.2.250.0030.00616.56
8.2.240.0140.00718.90
8.2.230.0080.00022.58
8.2.220.0040.00437.54
8.2.210.0030.00526.77
8.2.200.0060.00317.00
8.2.190.0120.00316.75
8.2.180.0030.01218.42
8.2.170.0040.01122.96
8.2.160.0100.00722.30
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0070.00026.16
8.2.110.0030.00721.08
8.2.100.0040.00818.16
8.2.90.0030.00518.24
8.2.80.0000.00820.34
8.2.70.0000.00818.05
8.2.60.0080.00017.88
8.2.50.0060.00318.07
8.2.40.0050.00318.34
8.2.30.0040.00418.11
8.2.20.0040.00418.22
8.2.10.0040.00419.27
8.2.00.0030.00519.31
8.1.330.0130.00722.05
8.1.320.0090.01116.18
8.1.310.0110.00716.57
8.1.300.0130.00319.70
8.1.290.0030.00618.88
8.1.280.0110.00425.92
8.1.270.0080.00024.00
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0060.00322.30
8.1.230.0230.00420.64
8.1.220.0000.00817.80
8.1.210.0080.00018.97
8.1.200.0050.00317.50
8.1.190.0040.00817.35
8.1.180.0030.00618.10
8.1.170.0000.00818.52
8.1.160.0000.00719.06
8.1.150.0000.00718.88
8.1.140.0070.00022.21
8.1.130.0070.00020.13
8.1.120.0030.00717.55
8.1.110.0010.00617.59
8.1.100.0110.00017.64
8.1.90.0090.00517.63
8.1.80.0090.00517.58
8.1.70.0080.00517.56
8.1.60.0080.00717.71
8.1.50.0120.00317.58
8.1.40.0100.00617.56
8.1.30.0070.00617.71
8.1.20.0050.01017.74
8.1.10.0090.00617.73
8.1.00.0100.00417.69
8.0.300.0000.00720.08
8.0.290.0080.00016.88
8.0.280.0000.00818.55
8.0.270.0080.00018.27
8.0.260.0000.00620.14
8.0.250.0070.00017.27
8.0.240.0100.00717.09
8.0.230.0040.00617.07
8.0.220.0070.00517.06
8.0.210.0040.00717.03
8.0.200.0090.00317.08
8.0.190.0100.00317.11
8.0.180.0110.00217.02
8.0.170.0040.00917.03
8.0.160.0050.00616.97
8.0.150.0050.00817.03
8.0.140.0080.00516.99
8.0.130.0060.00715.82
8.0.120.0080.00516.11
8.0.110.0070.00516.10
8.0.100.0090.00416.13
8.0.90.0100.00316.10
8.0.80.0080.00516.11
8.0.70.0080.00316.06
8.0.60.0090.00416.05
8.0.50.0080.00316.11
8.0.30.0100.00516.18
8.0.20.0090.00716.17
8.0.10.0060.00516.22
8.0.00.0070.00616.18
7.4.330.0030.00315.55
7.4.320.0030.00316.79
7.4.300.0030.00816.70
7.4.290.0070.00416.49
7.4.280.0040.00716.59
7.4.270.0050.00516.66
7.4.260.0060.00615.51
7.4.250.0060.00515.83
7.4.240.0060.00416.29
7.4.230.0060.00615.75
7.4.220.0060.00515.96
7.4.210.0060.00815.82
7.4.200.0070.00515.79
7.4.190.0090.00415.54
7.4.180.0090.00515.51
7.4.160.0080.00615.59
7.4.150.0110.00415.53
7.4.140.0080.00515.49
7.4.130.0100.00515.77
7.4.120.0110.00315.71
7.4.110.0100.00615.76
7.4.100.0090.00515.78
7.4.90.0080.00715.71
7.4.80.0110.00416.39
7.4.70.0080.00615.74
7.4.60.0100.00415.70
7.4.50.0090.00415.64
7.4.40.0090.00415.75
7.4.30.0100.00215.36
7.4.20.0080.00315.43
7.4.10.0110.00315.42
7.4.00.0060.00815.17
7.3.330.0080.00516.38
7.3.320.0090.00315.30
7.3.310.0080.00415.47
7.3.300.0040.00715.43
7.3.290.0080.00615.76
7.3.280.0120.00315.49
7.3.270.0100.00415.35
7.3.260.0110.00615.63
7.3.250.0100.00415.22
7.3.240.0100.00616.00
7.3.230.0060.00815.56
7.3.220.0130.00115.28
7.3.210.0090.00715.54
7.3.200.0080.00715.49
7.3.190.0110.00315.58
7.3.180.0070.00715.61
7.3.170.0140.00315.55
7.3.160.0090.00515.55
7.3.150.0100.00415.32
7.3.140.0100.00415.29
7.3.130.0110.00415.22
7.3.120.0070.00715.05
7.3.110.0100.00515.05
7.3.100.0090.00615.00
7.3.90.0070.00615.17
7.3.80.0080.00615.09
7.3.70.0090.00515.18
7.3.60.0070.00715.10
7.3.50.0090.00515.24
7.3.40.0080.00615.26
7.3.30.0070.00615.16
7.3.20.0080.00616.26
7.3.10.0060.00716.19
7.3.00.0050.00816.25
7.2.340.0120.00315.47
7.2.330.0140.00315.84
7.2.320.0080.00715.81
7.2.310.0070.00715.84
7.2.300.0120.00415.78
7.2.290.0120.00315.78
7.2.280.0130.00115.54
7.2.270.0080.00615.46
7.2.260.0100.00515.45
7.2.250.0090.00515.26
7.2.240.0080.00715.32
7.2.230.0090.00615.34
7.2.220.0060.00915.34
7.2.210.0120.00315.24
7.2.200.0100.00515.23
7.2.190.0090.00615.32
7.2.180.0090.00515.25
7.2.170.0100.00515.43
7.2.160.0090.00415.41
7.2.150.0100.00516.84
7.2.140.0070.00716.91
7.2.130.0110.00216.97
7.2.120.0080.00616.95
7.2.110.0050.00917.00
7.2.100.0100.00516.95
7.2.90.0060.00816.89
7.2.80.0170.00516.93
7.2.70.0100.00416.86
7.2.60.0090.00316.77
7.2.50.0080.00516.97
7.2.40.0090.00516.88
7.2.30.0090.00516.89
7.2.20.0100.00416.98
7.2.10.0080.00717.05
7.2.00.0120.00316.94

preferences:
91.5 ms | 403 KiB | 5 Q