3v4l.org

run code in 300+ PHP versions simultaneously
<?php $dt1 = new \DateTime( '2014/12/31' ); $dt1->modify( '-1 month' ); $m = (int) $dt1->format( 'm' ); var_dump( $m ); // still 12 !!!

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)
8.3.60.0060.00916.73
8.3.50.0100.00719.86
8.3.40.0060.01219.00
8.3.30.0040.01118.89
8.3.20.0070.00021.91
8.3.10.0000.00721.76
8.3.00.0050.00319.66
8.2.180.0120.00316.88
8.2.170.0140.00022.96
8.2.160.0030.01022.14
8.2.150.0110.00725.66
8.2.140.0070.00024.66
8.2.130.0080.00022.24
8.2.120.0030.00526.35
8.2.110.0060.00320.48
8.2.100.0090.00318.22
8.2.90.0000.00919.40
8.2.80.0000.00817.97
8.2.70.0070.00417.75
8.2.60.0030.00617.93
8.2.50.0070.00318.10
8.2.40.0050.00322.32
8.2.30.0000.00821.14
8.2.20.0070.00017.94
8.2.10.0000.00718.14
8.2.00.0000.00818.12
8.1.280.0040.01525.92
8.1.270.0050.00323.97
8.1.260.0040.00428.09
8.1.250.0060.00328.09
8.1.240.0060.00322.27
8.1.230.0060.00617.83
8.1.220.0000.00817.74
8.1.210.0080.00018.77
8.1.200.0040.00417.48
8.1.190.0090.00017.47
8.1.180.0040.00418.10
8.1.170.0000.00818.76
8.1.160.0070.00022.28
8.1.150.0000.00920.82
8.1.140.0000.00819.69
8.1.130.0030.00317.72
8.1.120.0000.00717.68
8.1.110.0030.00517.58
8.1.100.0080.00017.54
8.1.90.0070.00417.73
8.1.80.0040.00417.64
8.1.70.0070.00017.60
8.1.60.0050.00317.71
8.1.50.0040.00417.68
8.1.40.0080.00317.72
8.1.30.0050.00517.82
8.1.20.0040.00417.82
8.1.10.0080.00017.59
8.1.00.0000.00817.63
8.0.300.0000.00718.77
8.0.290.0040.00416.88
8.0.280.0000.00718.52
8.0.270.0000.00717.33
8.0.260.0050.00317.32
8.0.250.0050.00217.13
8.0.240.0000.00817.14
8.0.230.0000.00717.17
8.0.220.0000.00717.11
8.0.210.0000.00717.13
8.0.200.0040.00417.02
8.0.190.0000.00717.20
8.0.180.0000.00717.03
8.0.170.0000.00717.09
8.0.160.0020.00517.19
8.0.150.0050.00216.96
8.0.140.0030.00617.10
8.0.130.0030.00313.42
8.0.120.0080.00017.12
8.0.110.0050.00317.11
8.0.100.0070.00017.18
8.0.90.0080.00016.99
8.0.80.0040.01117.03
8.0.70.0050.00316.87
8.0.60.0000.00716.96
8.0.50.0000.00717.18
8.0.30.0090.00917.06
8.0.20.0090.01017.40
8.0.10.0040.00417.22
8.0.00.0140.01016.92
7.4.330.0050.00015.08
7.4.320.0060.00016.65
7.4.300.0030.00316.59
7.4.290.0070.00016.80
7.4.280.0030.00516.84
7.4.270.0000.00716.66
7.4.260.0030.00316.79
7.4.250.0050.00216.65
7.4.240.0040.00416.81
7.4.230.0030.00316.78
7.4.220.0110.01116.71
7.4.210.0120.00316.83
7.4.200.0000.00716.81
7.4.160.0080.00816.71
7.4.150.0120.00417.40
7.4.140.0120.00817.86
7.4.130.0140.01016.71
7.4.120.0060.01416.62
7.4.110.0070.01116.58
7.4.100.0030.01916.79
7.4.90.0070.01016.71
7.4.80.0080.01219.39
7.4.70.0070.01016.55
7.4.60.0060.01016.73
7.4.50.0060.00916.92
7.4.40.0070.01316.75
7.4.30.0060.01216.79
7.4.00.0040.01115.41
7.3.330.0000.00513.22
7.3.320.0000.00613.28
7.3.310.0060.00016.34
7.3.300.0000.00716.39
7.3.290.0070.01016.45
7.3.280.0110.00816.42
7.3.270.0110.00817.40
7.3.260.0100.00716.56
7.3.240.0120.00616.50
7.3.230.0180.00716.56
7.3.210.0040.01716.47
7.3.200.0040.01316.51
7.3.190.0100.00616.71
7.3.180.0060.01216.85
7.3.170.0100.01016.71
7.3.160.0180.00416.52
7.2.330.0060.01116.77
7.2.320.0070.01016.55
7.2.310.0030.01816.70
7.2.300.0060.01316.60
7.2.290.0100.00616.48
7.2.60.0100.00716.81
7.2.00.0060.00619.69
7.1.200.0000.01216.00
7.1.100.0050.00518.30
7.1.70.0090.00617.30
7.1.60.0080.00319.75
7.1.00.0000.08022.47
7.0.200.0300.00315.03
7.0.90.0270.06020.00
7.0.80.0300.04719.99
7.0.70.0270.06320.09
7.0.60.0270.05720.06
7.0.50.0270.05320.39
7.0.40.0200.05720.21
7.0.30.0370.07020.30
7.0.20.0100.06720.31
7.0.10.0130.06720.32
7.0.00.0530.04020.20
5.6.240.0100.06020.78
5.6.230.0100.06320.77
5.6.220.0130.05320.49
5.6.210.0100.06020.74
5.6.200.0100.07321.09
5.6.190.0100.05721.13
5.6.180.0170.07021.09
5.6.170.0130.05721.09
5.6.160.0130.05721.07
5.6.150.0200.05321.02
5.6.140.0200.07721.01
5.6.130.0170.05321.19
5.6.120.0170.05721.07
5.6.110.0130.07321.16
5.6.100.0070.06321.10
5.6.90.0130.06021.07
5.6.80.0130.05720.46
5.6.70.0030.06020.46
5.6.60.0200.07020.56
5.6.50.0130.07320.40
5.6.40.0170.07020.49
5.6.30.0100.08020.44
5.6.20.0100.07020.33
5.6.10.0100.07720.39
5.6.00.0100.05320.46

preferences:
63.51 ms | 401 KiB | 5 Q