3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = new \DateTime('previous month'); $x->modify('first day'); echo $x->format('Y-m-d H:i:s');

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)
8.3.60.0060.01516.75
8.3.50.0140.00016.31
8.3.40.0190.00318.73
8.3.30.0070.00718.70
8.3.20.0000.00820.26
8.3.10.0030.00923.61
8.3.00.0050.00323.71
8.2.180.0120.00918.79
8.2.170.0090.00622.96
8.2.160.0000.01420.52
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00819.82
8.2.120.0040.00426.35
8.2.110.0030.00620.52
8.2.100.0040.00817.71
8.2.90.0070.00419.22
8.2.80.0000.00818.16
8.2.70.0000.00917.75
8.2.60.0030.00617.93
8.2.50.0080.00318.07
8.2.40.0040.00422.19
8.2.30.0090.00019.48
8.2.20.0040.00417.82
8.2.10.0040.00418.09
8.2.00.0040.00418.11
8.1.280.0090.00625.92
8.1.270.0070.01123.80
8.1.260.0070.00028.09
8.1.250.0070.00028.09
8.1.240.0080.00023.91
8.1.230.0110.00021.00
8.1.220.0040.00417.91
8.1.210.0050.00318.77
8.1.200.0000.01217.34
8.1.190.0050.00517.38
8.1.180.0040.00418.10
8.1.170.0060.00318.79
8.1.160.0050.00220.73
8.1.150.0000.00718.94
8.1.140.0040.00419.50
8.1.130.0050.00217.76
8.1.120.0050.00317.53
8.1.110.0050.00317.69
8.1.100.0050.00217.69
8.1.90.0040.00417.62
8.1.80.0060.00617.68
8.1.70.0040.00417.68
8.1.60.0000.00717.61
8.1.50.0100.00017.63
8.1.40.0000.00817.67
8.1.30.0030.00517.68
8.1.20.0030.00517.70
8.1.10.0070.00017.76
8.1.00.0000.00917.77
8.0.300.0000.00718.77
8.0.290.0000.00717.00
8.0.280.0070.00018.63
8.0.270.0030.00317.39
8.0.260.0000.00617.33
8.0.250.0080.00317.14
8.0.240.0030.00317.20
8.0.230.0070.00017.11
8.0.220.0040.00417.05
8.0.210.0040.00417.12
8.0.200.0030.00317.18
8.0.190.0080.00017.16
8.0.180.0080.00016.99
8.0.170.0040.00417.13
8.0.160.0040.00417.00
8.0.150.0030.00316.95
8.0.140.0040.00417.03
8.0.130.0000.00513.48
8.0.120.0080.00017.05
8.0.110.0040.00417.07
8.0.100.0040.00417.00
8.0.90.0070.00017.10
8.0.80.0100.01017.00
8.0.70.0040.00416.99
8.0.60.0000.00717.12
8.0.50.0040.00417.06
8.0.30.0050.01417.16
8.0.20.0110.01117.40
8.0.10.0070.00017.16
8.0.00.0110.00617.02
7.4.330.0000.00616.95
7.4.320.0060.00016.74
7.4.300.0000.00816.61
7.4.290.0020.00516.65
7.4.280.0030.00616.52
7.4.270.0000.00816.78
7.4.260.0040.00416.76
7.4.250.0000.00816.67
7.4.240.0030.00516.62
7.4.230.0040.00416.62
7.4.220.0030.01416.50
7.4.210.0000.01516.75
7.4.200.0000.00716.46
7.4.160.0030.01316.84
7.4.150.0090.00917.40
7.4.140.0130.00917.86
7.4.130.0060.01216.65
7.4.120.0070.01116.71
7.4.110.0070.01016.66
7.4.100.0150.00916.74
7.4.90.0170.00016.66
7.4.80.0110.00619.39
7.4.70.0100.00716.75
7.4.60.0080.00916.59
7.4.50.0070.00616.67
7.4.40.0120.00616.29
7.4.30.0120.00616.51
7.4.00.0040.01315.26
7.3.330.0030.00313.23
7.3.320.0020.00213.16
7.3.310.0080.00016.34
7.3.300.0000.00716.31
7.3.290.0090.00716.26
7.3.280.0060.01016.34
7.3.270.0030.01317.40
7.3.260.0140.00716.49
7.3.250.0090.01016.32
7.3.240.0080.01116.50
7.3.230.0100.00716.74
7.3.210.0030.01416.40
7.3.200.0100.00716.71
7.3.190.0090.00916.71
7.3.180.0090.00916.59
7.3.170.0170.00316.66
7.3.160.0060.01516.54
7.3.120.0090.01015.09
7.3.110.0040.01214.86
7.3.100.0110.00414.76
7.3.90.0050.00514.71
7.3.80.0070.00414.92
7.3.70.0040.01114.80
7.3.60.0080.00315.04
7.3.50.0090.00314.91
7.3.40.0070.00714.74
7.3.30.0050.00515.01
7.3.20.0000.01116.52
7.3.10.0130.00316.75
7.3.00.0060.00616.58
7.2.330.0100.00716.74
7.2.320.0040.01416.57
7.2.310.0130.00316.86
7.2.300.0090.00916.69
7.2.290.0130.00316.56
7.2.250.0100.00715.12
7.2.240.0160.00315.39
7.2.230.0100.00715.51
7.2.220.0000.00914.95
7.2.210.0080.00414.91
7.2.200.0030.01015.25
7.2.190.0100.00615.27
7.2.180.0030.00915.00
7.2.170.0070.01114.77
7.2.60.0030.00916.86
7.2.00.0100.00719.44
7.1.330.0000.01416.04
7.1.320.0030.01015.89
7.1.310.0030.00915.84
7.1.300.0090.00615.97
7.1.290.0000.00915.73
7.1.280.0080.00615.81
7.1.270.0060.00315.55
7.1.260.0030.01015.68
7.1.200.0000.01515.95
7.1.100.0110.00818.12
7.1.70.0030.00616.93
7.1.60.0140.01119.30
7.1.50.0040.01917.02
7.1.00.0030.07722.32
7.0.200.0030.00516.86
7.0.60.0200.06321.84
7.0.50.0070.08017.89
7.0.40.0070.06720.10
7.0.30.0270.05320.17
7.0.20.0400.07020.24
7.0.10.0070.05020.29
7.0.00.0130.04320.27
5.6.280.0070.07720.99
5.6.210.0070.07020.66
5.6.200.0070.08018.17
5.6.190.0100.05020.61
5.6.180.0330.04020.41
5.6.170.0270.04020.54
5.6.160.0100.03720.40
5.6.150.0000.04018.15
5.6.140.0170.06318.10
5.6.130.0070.05718.09
5.6.120.0170.05021.14
5.6.110.0000.04720.96
5.6.100.0130.07321.08
5.6.90.0100.03721.10
5.6.80.0070.05020.38
5.5.350.0170.08320.42
5.5.340.0200.07317.97
5.5.330.0100.03720.13
5.5.320.0200.04020.18
5.5.310.0300.07020.24
5.5.300.0070.06318.02
5.5.290.0070.05317.93
5.5.280.0030.09020.65
5.5.270.0100.08320.72
5.5.260.0200.06720.72
5.5.250.0030.09020.65
5.5.240.0100.08320.16

preferences:
51.66 ms | 400 KiB | 5 Q