3v4l.org

run code in 300+ PHP versions simultaneously
<?php $date = new \DateTime('first day of last month'); $date2 = new \DateTime('last month'); $date2->modify('first day'); echo $date->format('Y-m-d') . "\n"; echo $date2->format('Y-m-d') . "\n";

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)
8.3.60.0070.00718.40
8.3.50.0090.00616.37
8.3.40.0130.01018.82
8.3.30.0070.00718.97
8.3.20.0040.00420.30
8.3.10.0030.00523.65
8.3.00.0030.00519.68
8.2.180.0190.00016.88
8.2.170.0040.01122.96
8.2.160.0110.00319.41
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0080.00017.88
8.2.110.0100.00022.23
8.2.100.0050.00517.93
8.2.90.0000.00818.98
8.2.80.0090.00017.97
8.2.70.0040.00717.50
8.2.60.0050.00317.93
8.2.50.0050.00518.07
8.2.40.0030.00519.51
8.2.30.0030.00720.54
8.2.20.0000.00717.75
8.2.10.0040.00417.98
8.2.00.0080.00018.11
8.1.280.0040.01125.92
8.1.270.0080.00024.01
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00622.73
8.1.230.0070.00417.78
8.1.220.0040.00417.74
8.1.210.0030.00518.77
8.1.200.0000.00917.63
8.1.190.0080.00017.35
8.1.180.0050.00318.10
8.1.170.0040.00418.83
8.1.160.0070.00022.04
8.1.150.0000.00719.06
8.1.140.0000.00917.75
8.1.130.0000.00817.85
8.1.120.0000.00717.73
8.1.110.0020.00517.71
8.1.100.0050.00317.68
8.1.90.0030.00317.67
8.1.80.0000.00817.74
8.1.70.0030.00317.58
8.1.60.0060.00317.70
8.1.50.0030.00617.68
8.1.40.0050.00317.57
8.1.30.0070.00317.72
8.1.20.0050.00317.80
8.1.10.0050.00317.79
8.1.00.0050.00317.67
8.0.300.0040.00418.77
8.0.290.0000.00716.88
8.0.280.0030.00318.57
8.0.270.0030.00317.39
8.0.260.0030.00317.30
8.0.250.0000.00717.23
8.0.240.0030.00517.22
8.0.230.0080.00017.23
8.0.220.0080.00017.02
8.0.210.0030.00617.22
8.0.200.0040.00417.08
8.0.190.0020.00917.24
8.0.180.0040.00417.17
8.0.170.0040.00417.17
8.0.160.0030.00517.21
8.0.150.0070.00017.05
8.0.140.0040.00417.03
8.0.130.0030.00313.55
8.0.120.0080.00017.10
8.0.110.0000.00817.14
8.0.100.0080.00017.13
8.0.90.0000.00717.10
8.0.80.0040.01117.10
8.0.70.0040.00417.07
8.0.60.0060.00316.97
8.0.50.0030.00517.02
8.0.30.0110.01117.43
8.0.20.0100.00817.46
8.0.10.0040.00417.09
8.0.00.0100.00716.91
7.4.330.0050.00015.11
7.4.320.0030.00316.73
7.4.300.0030.00316.76
7.4.290.0100.00016.53
7.4.280.0030.00616.75
7.4.270.0050.00316.73
7.4.260.0080.00016.64
7.4.250.0030.00516.56
7.4.240.0000.00716.56
7.4.230.0030.00316.55
7.4.220.0100.00716.69
7.4.210.0070.00716.51
7.4.200.0000.00716.67
7.4.160.0110.00716.52
7.4.150.0100.00717.40
7.4.140.0110.00617.86
7.4.130.0090.00916.69
7.4.120.0090.00916.65
7.4.110.0060.01216.70
7.4.100.0030.01316.67
7.4.90.0110.00716.81
7.4.80.0080.00819.39
7.4.70.0130.00716.53
7.4.60.0140.00316.61
7.4.50.0040.00416.67
7.4.40.0160.00616.66
7.4.30.0140.00916.88
7.4.00.0060.01215.06
7.3.330.0020.00213.15
7.3.320.0060.00013.24
7.3.310.0030.00316.46
7.3.300.0040.00416.31
7.3.290.0100.00816.37
7.3.280.0110.00516.44
7.3.270.0130.00417.40
7.3.260.0100.01016.61
7.3.250.0110.00816.56
7.3.240.0140.00416.69
7.3.230.0140.00316.62
7.3.210.0060.01016.48
7.3.200.0100.00716.73
7.3.190.0070.01116.44
7.3.180.0060.01216.66
7.3.170.0040.01216.57
7.3.160.0160.00316.75
7.3.10.0140.00316.39
7.3.00.0140.01016.46
7.2.330.0110.00616.86
7.2.320.0100.01016.84
7.2.310.0130.00416.65
7.2.300.0170.00616.62
7.2.290.0090.00916.93
7.2.130.0420.00016.73
7.2.120.0150.00916.79
7.2.110.0150.00917.13
7.2.100.0300.00916.89
7.2.90.0330.00916.82
7.2.80.0250.01516.66
7.2.70.0370.00816.95
7.2.60.0210.00716.61
7.2.50.0270.00316.43
7.2.40.0200.00917.02
7.2.30.0130.01216.34
7.2.20.0240.00516.92
7.2.10.0160.00316.25
7.2.00.0050.01218.16
7.1.250.0160.00715.34
7.1.200.0030.00915.67
7.1.100.0040.00818.17
7.1.70.0030.00517.25
7.1.60.0140.01119.29
7.1.50.0040.00816.91
7.1.00.0030.07722.44
7.0.200.0080.00316.88
7.0.60.0100.03319.94
7.0.50.0170.06317.86
7.0.40.0000.06020.21
7.0.30.0230.04720.21
7.0.20.0270.07320.04
7.0.10.0130.06320.00
7.0.00.0170.04320.08
5.6.280.0030.03321.07
5.6.210.0100.06720.64
5.6.200.0100.09018.12
5.6.190.0070.05720.43
5.6.180.0270.03720.39
5.6.170.0300.08020.44
5.6.160.0070.05720.41
5.6.150.0070.07018.16
5.6.140.0030.04318.14
5.6.130.0000.05018.06
5.6.120.0270.06021.00
5.6.110.0000.08020.89
5.6.100.0100.07720.98
5.6.90.0070.06720.97
5.6.80.0130.07020.38
5.5.350.0070.08020.52
5.5.340.0030.08717.87
5.5.330.0100.08320.23
5.5.320.3900.04020.18
5.5.310.0300.08020.26
5.5.300.0070.04318.02
5.5.290.0170.07017.90
5.5.280.0130.08020.89
5.5.270.0130.07320.88
5.5.260.0030.08720.64
5.5.250.0030.04020.76
5.5.240.0130.06720.18
5.4.450.0670.05319.64
5.4.440.0700.06019.27
5.4.430.0970.05319.09
5.4.420.0830.04719.40
5.4.410.0630.06319.45
5.4.400.0770.05719.17
5.4.390.0630.05718.77
5.4.380.0770.05019.28
5.4.370.0600.06018.99
5.4.360.0830.04319.30
5.4.350.0670.05019.28
5.4.340.0630.05019.31
5.4.320.0530.06018.78
5.4.310.0800.05319.16
5.4.300.0730.05319.30
5.4.290.0730.05019.19
5.4.280.0500.06319.22
5.4.270.0800.04719.14
5.4.260.0870.04319.19
5.4.250.0630.05719.24
5.4.240.0630.05719.16
5.4.230.0670.05719.13
5.4.220.0700.04719.30
5.4.210.0300.06719.14
5.4.200.0130.05019.27
5.4.190.0700.05719.13
5.4.180.0630.05018.93
5.4.170.0700.05719.07
5.4.160.0800.05319.23
5.4.150.0800.06019.14
5.4.140.0800.05316.46
5.4.130.0900.05316.45
5.4.120.1030.05716.34
5.4.110.0900.07016.54
5.4.100.1000.06316.61
5.4.90.0630.05316.51
5.4.80.0730.04716.51
5.4.70.0200.03316.43
5.4.60.0000.07016.16
5.4.50.0030.04716.20
5.4.40.0270.04716.38
5.4.30.0270.04016.27
5.4.20.0070.03016.27

preferences:
53.25 ms | 400 KiB | 5 Q