3v4l.org

run code in 300+ PHP versions simultaneously
<?php $dt = new DateTime('first Monday of this month'); echo $dt->format('W'); $month = date("m",$dt); echo $month;

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)
8.3.40.0110.00419.04
8.3.30.0070.00719.10
8.3.20.0030.00520.29
8.3.10.0060.00320.61
8.3.00.0050.00319.50
8.2.170.0110.00422.96
8.2.160.0030.01320.50
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0050.00322.27
8.2.110.0040.00420.65
8.2.100.0110.00018.16
8.2.90.0080.00019.16
8.2.80.0080.00017.97
8.2.70.0030.00617.88
8.2.60.0050.00518.05
8.2.50.0000.00818.07
8.2.40.0070.00018.32
8.2.30.0040.00419.23
8.2.20.0080.00017.81
8.2.10.0060.00318.04
8.2.00.0040.00417.86
8.1.270.0030.00623.89
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0110.00018.98
8.1.230.0110.00019.09
8.1.220.0000.00817.89
8.1.210.0090.00018.77
8.1.200.0000.00917.48
8.1.190.0050.00317.48
8.1.180.0050.00318.10
8.1.170.0030.00718.78
8.1.160.0040.00422.02
8.1.150.0040.00418.88
8.1.140.0030.00617.68
8.1.130.0000.00717.63
8.1.120.0040.00417.66
8.1.110.0030.00517.68
8.1.100.0040.00417.67
8.1.90.0050.00517.54
8.1.80.0030.00717.66
8.1.70.0080.00017.63
8.1.60.0030.00617.61
8.1.50.0060.00317.60
8.1.40.0070.00017.60
8.1.30.0000.00817.82
8.1.20.0000.00817.67
8.1.10.0040.00417.62
8.1.00.0000.00817.60
8.0.300.0050.00318.77
8.0.290.0000.00717.00
8.0.280.0070.00018.57
8.0.270.0040.00417.32
8.0.260.0000.00717.07
8.0.250.0040.00417.29
8.0.240.0030.00317.11
8.0.230.0030.00317.23
8.0.220.0040.00417.17
8.0.210.0030.00317.03
8.0.200.0060.00317.17
8.0.190.0050.00317.25
8.0.180.0070.00017.05
8.0.170.0080.00017.07
8.0.160.0000.00717.14
8.0.150.0080.00017.07
8.0.140.0050.00317.14
8.0.130.0030.00313.54
8.0.120.0020.00517.11
8.0.110.0020.00517.12
8.0.100.0040.00417.09
8.0.90.0000.00716.95
8.0.80.0170.00017.05
8.0.70.0070.00017.20
8.0.60.0040.00417.14
8.0.50.0040.00417.21
8.0.30.0130.00617.17
8.0.20.0110.01017.43
8.0.10.0040.00417.15
8.0.00.0070.01017.01
7.4.330.0030.00315.14
7.4.320.0000.00616.55
7.4.300.0060.00016.73
7.4.290.0000.00916.59
7.4.280.0000.00716.71
7.4.270.0030.00316.78
7.4.260.0050.00516.47
7.4.250.0020.00516.71
7.4.240.0050.00316.62
7.4.230.0070.00016.75
7.4.220.0060.01516.64
7.4.210.0070.00716.58
7.4.200.0070.00016.43
7.4.160.0150.00016.63
7.4.150.0140.00717.40
7.4.140.0130.00417.86
7.4.130.0100.01016.66
7.4.120.0050.01216.79
7.4.110.0070.01316.61
7.4.100.0110.00716.70
7.4.90.0070.01516.61
7.4.80.0120.00618.80
7.4.70.0100.00616.91
7.4.60.0030.01416.63
7.4.50.0030.00516.71
7.4.40.0060.00916.56
7.4.30.0120.00316.77
7.4.00.0140.00314.96
7.3.330.0050.00013.43
7.3.320.0030.00313.29
7.3.310.0070.00016.43
7.3.300.0070.00016.48
7.3.290.0030.01016.40
7.3.280.0090.00816.43
7.3.270.0110.01417.40
7.3.260.0110.00516.54
7.3.250.0130.00816.60
7.3.240.0040.01316.40
7.3.230.0110.01116.61
7.3.210.0100.00716.87
7.3.200.0000.01719.39
7.3.190.0070.01016.71
7.3.180.0060.00916.57
7.3.170.0160.00316.64
7.3.160.0080.00816.75
7.2.330.0130.01016.90
7.2.320.0110.00616.82
7.2.310.0030.01516.88
7.2.300.0120.00416.62
7.2.290.0170.00016.91
7.2.60.0100.00317.11
7.2.00.0000.01219.33
7.1.200.0080.00315.85
7.1.100.0030.01018.32
7.1.70.0000.01417.53
7.1.60.0100.01319.32
7.1.50.0060.00616.88
7.1.00.0000.08022.43
7.0.200.0040.00416.92
7.0.140.0070.07022.04
7.0.100.0100.06719.85
7.0.90.0170.07019.90
7.0.80.0100.08019.85
7.0.70.0100.08320.13
7.0.60.0170.05019.85
7.0.50.0030.06320.32
7.0.40.0000.04720.07
7.0.30.0070.06020.14
7.0.20.0130.03720.14
7.0.10.0130.07020.07
7.0.00.0100.07720.12
5.6.280.0070.06720.81
5.6.250.0130.04720.69
5.6.240.0130.07020.69
5.6.230.0070.08020.63
5.6.220.0170.07020.52
5.6.210.0070.04720.47
5.6.200.0100.06720.95
5.6.190.0130.07720.93
5.6.180.0100.05720.93
5.6.170.0100.08321.04
5.6.160.0000.05720.96
5.6.150.0070.08321.05
5.6.140.0070.07021.04
5.6.130.0070.05021.03
5.6.120.0130.08021.04
5.6.110.0100.06321.05
5.6.100.0170.04321.05
5.6.90.0030.05321.06
5.6.80.0070.08020.42
5.6.70.0000.06020.38
5.6.60.0100.08020.47
5.6.50.0070.08020.33
5.6.40.0070.08320.30
5.6.30.0030.05320.30
5.6.20.0100.08020.46
5.6.10.0030.04720.48
5.6.00.0000.05020.46
5.5.380.0070.08720.39
5.5.370.0130.07320.44
5.5.360.0200.07320.42
5.5.350.0100.07720.33
5.5.340.0100.04320.80
5.5.330.0200.06720.91
5.5.320.0130.08320.75
5.5.310.0070.08020.87
5.5.300.0030.09020.64
5.5.290.0070.08320.86
5.5.280.0030.06020.90
5.5.270.0100.06320.86
5.5.260.0030.05320.71
5.5.250.0030.08020.57
5.5.240.0070.05720.27
5.5.230.0130.07020.30
5.5.220.0270.05020.21
5.5.210.0030.08320.29
5.5.200.0130.07720.08
5.5.190.0030.04020.26
5.5.180.0070.08020.21
5.5.160.0070.05720.25
5.5.150.0030.07320.15
5.5.140.0070.05720.16
5.5.130.0170.07020.27
5.5.120.0100.07720.09
5.5.110.0130.05320.13
5.5.100.0100.07720.16
5.5.90.0100.07720.15
5.5.80.0030.06720.08
5.5.70.0170.07020.08
5.5.60.0170.05020.04
5.5.50.0070.07720.03
5.5.40.0070.06719.92
5.5.30.0070.08720.02
5.5.20.0170.05320.13
5.5.10.0070.05020.02
5.5.00.0070.08019.96
5.4.450.0130.04719.56
5.4.440.0000.08719.35
5.4.430.0070.08319.45
5.4.420.0100.08019.27
5.4.410.0070.04719.18
5.4.400.0070.06319.07
5.4.390.0030.04719.05
5.4.380.0030.05319.03
5.4.370.0130.07019.12
5.4.360.0170.03718.95
5.4.350.0130.06718.81
5.4.340.0030.04718.98
5.4.320.0100.08019.14
5.4.310.0070.06319.05
5.4.300.0070.08319.22
5.4.290.0130.07319.07
5.4.280.0030.08019.07
5.4.270.0000.05018.96
5.4.260.0070.07719.05
5.4.250.0130.07018.80
5.4.240.0070.03718.89
5.4.230.0070.07718.95
5.4.220.0000.08019.12
5.4.210.0100.07319.22
5.4.200.0170.06719.07
5.4.190.0070.03718.77
5.4.180.0170.06718.98
5.4.170.0170.07018.77
5.4.160.0200.06319.00
5.4.150.0030.08018.93
5.4.140.0070.06016.34
5.4.130.0130.06016.42
5.4.120.0100.07316.34
5.4.110.0000.07316.43
5.4.100.0030.08016.39
5.4.90.0030.04716.45
5.4.80.0070.07316.34
5.4.70.0030.05016.39
5.4.60.0130.03316.41
5.4.50.0070.04016.39
5.4.40.0030.06016.46
5.4.30.0070.04316.29
5.4.20.0070.05316.28
5.4.10.0070.06316.39
5.4.00.0000.05315.82
5.3.290.0070.04714.62
5.3.280.0100.07314.59
5.3.270.0030.08314.62
5.3.260.0070.04714.45
5.3.250.0100.07714.44
5.3.240.0100.07714.46
5.3.230.0170.06714.55
5.3.220.0070.07014.43
5.3.210.0100.07014.55
5.3.200.0030.07314.47
5.3.190.0170.06714.52
5.3.180.0030.08014.41
5.3.170.0030.07314.39
5.3.160.0030.04014.50
5.3.150.0100.07314.57
5.3.140.0100.07314.54
5.3.130.0100.06314.53
5.3.120.0100.07014.38
5.3.110.0030.07714.54
5.3.100.0030.04313.98
5.3.90.0000.08014.01
5.3.80.0130.05014.02
5.3.70.0130.06014.00
5.3.60.0270.04013.87
5.3.50.0030.07713.70
5.3.40.0070.07013.89
5.3.30.0030.07013.86
5.3.20.0170.04713.63
5.3.10.0030.07313.56
5.3.00.0030.05313.64
5.2.170.0100.03011.04
5.2.160.0030.06011.26
5.2.150.0030.06311.23
5.2.140.0070.06311.04
5.2.130.0030.04711.23
5.2.120.0030.06011.21
5.2.110.0070.05311.09
5.2.100.0100.05710.95
5.2.90.0000.06711.00
5.2.80.0070.06010.99
5.2.70.0100.05311.02
5.2.60.0070.04010.98
5.2.50.0100.05310.94
5.2.40.0000.06010.98
5.2.30.0000.06310.89
5.2.20.0030.06010.89
5.2.10.0070.05310.85
5.2.00.0070.06010.76
5.1.60.0070.05010.02
5.1.50.0000.05710.02
5.1.40.0030.05310.00
5.1.30.0030.05710.34
5.1.20.0070.04710.27
5.1.10.0070.05010.14
5.1.00.0070.0539.90
5.0.50.0070.0308.50
5.0.40.0070.0378.39
5.0.30.0000.0638.20
5.0.20.0030.0378.22
5.0.10.0030.0408.16
5.0.00.0000.0708.25
4.4.90.0000.0336.88
4.4.80.0000.0336.88
4.4.70.0100.0276.88
4.4.60.0030.0336.88
4.4.50.0000.0336.88
4.4.40.0000.0536.88
4.4.30.0030.0376.88
4.4.20.0000.0376.88
4.4.10.0030.0336.88
4.4.00.0070.0506.88
4.3.110.0000.0376.88
4.3.100.0030.0336.88
4.3.90.0030.0336.88
4.3.80.0030.0476.88
4.3.70.0000.0376.88
4.3.60.0000.0336.88
4.3.50.0070.0236.88
4.3.40.0070.0406.88
4.3.30.0000.0376.88
4.3.20.0000.0336.88
4.3.10.0070.0336.88
4.3.00.0000.0336.88

preferences:
36.73 ms | 400 KiB | 5 Q