3v4l.org

run code in 300+ PHP versions simultaneously
<?php $end_date=mktime(23,59,59,12,31,2014); echo date("r", $end_date)."\n"; $date=strtotime("last day of -1 months", $end_date); echo date("r", $date)."\n"; $date=strtotime("last day of -2 months", $end_date); echo date("r", $date)."\n"; $date=strtotime("last day of -3 months", $end_date); echo date("r", $date)."\n"; $date=strtotime("last day of -4 months", $end_date); echo date("r", $date)."\n"; $date=strtotime("last day of -5 months", $end_date); echo date("r", $date)."\n"; $date=strtotime("last day of -6 months", $end_date); echo date("r", $date)."\n"; $date=strtotime("last day of -7 months", $end_date); echo date("r", $date)."\n"; $date=strtotime("last day of -8 months", $end_date); echo date("r", $date)."\n"; $date=strtotime("last day of -9 months", $end_date); echo date("r", $date)."\n"; $date=strtotime("last day of -10 months", $end_date); echo date("r", $date)."\n"; $date=strtotime("last day of -11 months", $end_date); echo date("r", $date)."\n"; $date=strtotime("last day of -12 months", $end_date); echo date("r", $date)."\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)
8.3.60.0090.00916.63
8.3.50.0100.01122.07
8.3.40.0140.00718.96
8.3.30.0120.00318.88
8.3.20.0040.00420.26
8.3.10.0000.00821.73
8.3.00.0050.00317.93
8.2.180.0090.01218.66
8.2.170.0090.00622.96
8.2.160.0030.01419.48
8.2.150.0000.00824.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0060.00320.08
8.2.110.0030.00622.20
8.2.100.0040.00718.03
8.2.90.0040.00419.35
8.2.80.0040.00418.12
8.2.70.0030.00517.75
8.2.60.0080.00018.05
8.2.50.0080.00018.07
8.2.40.0030.00518.34
8.2.30.0030.00618.20
8.2.20.0040.00417.93
8.2.10.0000.00718.05
8.2.00.0080.00017.85
8.1.280.0060.00925.92
8.1.270.0090.00021.98
8.1.260.0050.00326.35
8.1.250.0080.00028.09
8.1.240.0060.00323.96
8.1.230.0080.00319.34
8.1.220.0050.00317.74
8.1.210.0030.00518.77
8.1.200.0060.00317.48
8.1.190.0030.00517.68
8.1.180.0040.00418.10
8.1.170.0060.00318.75
8.1.160.0000.00722.09
8.1.150.0000.00718.94
8.1.140.0050.00317.66
8.1.130.0000.00717.96
8.1.120.0050.00317.79
8.1.110.0040.00417.59
8.1.100.0040.00417.67
8.1.90.0040.00417.69
8.1.80.0040.00317.68
8.1.70.0030.00317.55
8.1.60.0060.00317.68
8.1.50.0030.00517.75
8.1.40.0000.00917.77
8.1.30.0050.00317.79
8.1.20.0040.00417.73
8.1.10.0050.00317.63
8.1.00.0000.00817.64
8.0.300.0030.00618.77
8.0.290.0040.00417.30
8.0.280.0030.00518.54
8.0.270.0040.00417.48
8.0.260.0030.00317.33
8.0.250.0000.00717.11
8.0.240.0080.00017.28
8.0.230.0000.00717.14
8.0.220.0030.00317.19
8.0.210.0030.00517.07
8.0.200.0080.00417.22
8.0.190.0030.00617.24
8.0.180.0000.00717.17
8.0.170.0040.00417.25
8.0.160.0030.00417.11
8.0.150.0080.00017.00
8.0.140.0070.00017.05
8.0.130.0030.00313.56
8.0.120.0040.00417.13
8.0.110.0000.00817.07
8.0.100.0040.00417.20
8.0.90.0040.00417.03
8.0.80.0110.00417.22
8.0.70.0040.00417.22
8.0.60.0040.00417.15
8.0.50.0040.00416.96
8.0.30.0140.00817.24
8.0.20.0140.00517.40
8.0.10.0040.00417.12
8.0.00.0090.01217.12
7.4.330.0060.00015.23
7.4.320.0000.00616.68
7.4.300.0060.00016.66
7.4.290.0070.00016.62
7.4.280.0050.00316.57
7.4.270.0030.00316.74
7.4.260.0000.00716.65
7.4.250.0000.00816.55
7.4.240.0050.00316.73
7.4.230.0030.00316.76
7.4.220.0080.01116.62
7.4.210.0060.01016.80
7.4.200.0030.00516.87
7.4.160.0080.00816.83
7.4.150.0070.01517.40
7.4.140.0070.01017.86
7.4.130.0060.01316.73
7.4.120.0090.01216.66
7.4.110.0150.00916.66
7.4.100.0080.00816.86
7.4.90.0090.00916.66
7.4.80.0080.00919.39
7.4.70.0030.01716.86
7.4.60.0100.00716.74
7.4.50.0030.00616.56
7.4.40.0170.00016.66
7.4.30.0100.00716.94
7.4.00.0070.00715.40
7.3.330.0060.00013.39
7.3.320.0000.00513.18
7.3.310.0030.00316.22
7.3.300.0040.00416.41
7.3.290.0070.01016.38
7.3.280.0070.00916.37
7.3.270.0120.00617.40
7.3.260.0030.01516.64
7.3.250.0090.00916.82
7.3.240.0070.01016.64
7.3.230.0160.00716.50
7.3.210.0090.00916.49
7.3.200.0060.00919.39
7.3.190.0030.01316.48
7.3.180.0140.00616.38
7.3.170.0070.01016.54
7.3.160.0030.01416.54
7.2.330.0120.00917.05
7.2.320.0040.01216.50
7.2.310.0100.00716.51
7.2.300.0090.00916.61
7.2.290.0120.00616.56
7.2.60.0080.00517.03
7.2.00.0040.00719.52
7.1.200.0000.01415.95
7.1.100.0110.00718.31
7.1.70.0050.00317.20
7.1.60.0070.01419.57
7.1.50.0100.01334.80
7.1.00.0000.07722.36
7.0.200.0140.00714.94
7.0.140.0070.06722.00
7.0.100.0130.04019.94
7.0.90.0230.03319.91
7.0.80.0130.07319.94
7.0.70.0100.07720.00
7.0.60.0030.04319.98
7.0.50.0370.05020.38
7.0.40.0170.06720.05
7.0.30.0070.08020.03
7.0.20.0070.09020.19
7.0.10.0030.03720.09
7.0.00.0100.08020.03
5.6.280.0000.08021.03
5.6.250.0130.07320.54
5.6.240.0030.05020.61
5.6.230.0070.09020.73
5.6.220.0130.07320.70
5.6.210.0100.05320.65
5.6.200.0070.09321.13
5.6.190.0070.08321.07
5.6.180.0070.08720.93
5.6.170.0100.04721.18
5.6.160.0070.05320.94
5.6.150.0070.08321.05
5.6.140.0000.08721.02
5.6.130.0170.07021.01
5.6.120.0070.08721.14
5.6.110.0130.06020.93
5.6.100.0170.07721.11
5.6.90.0100.08021.04
5.6.80.0070.08020.43
5.6.70.0000.07720.44
5.6.60.0000.05020.40
5.6.50.0100.04320.41
5.6.40.0030.04720.41
5.6.30.0130.08020.41
5.6.20.0070.07720.46
5.6.10.0100.07720.41
5.6.00.0100.07020.30
5.5.380.0100.07720.56
5.5.370.0130.07320.55
5.5.360.0100.07020.35
5.5.350.0030.08720.43
5.5.340.0070.08720.79
5.5.330.0030.09020.93
5.5.320.0070.08320.82
5.5.310.0130.07020.88
5.5.300.0170.06320.93
5.5.290.0130.05020.77
5.5.280.0130.07320.91
5.5.270.0100.08020.89
5.5.260.0070.08020.78
5.5.250.0100.08720.75
5.5.240.0070.05720.00
5.5.230.0070.04720.19
5.5.220.0070.08320.24
5.5.210.0170.06720.19
5.5.200.0030.07320.00
5.5.190.0130.06320.16
5.5.180.0230.06320.22
5.5.160.0170.07020.09
5.5.150.0000.06020.27
5.5.140.0170.06720.28
5.5.130.0030.04020.27
5.5.120.0100.07020.23
5.5.110.0030.06720.23
5.5.100.0070.04020.12
5.5.90.0070.07720.17
5.5.80.0100.07320.10
5.5.70.0070.05320.06
5.5.60.0030.08019.97
5.5.50.0070.04319.97
5.5.40.0030.08019.96
5.5.30.0070.07020.09
5.5.20.0070.04020.06
5.5.10.0030.04720.12
5.5.00.0070.09020.11
5.4.450.0070.05719.11
5.4.440.0030.08319.39
5.4.430.0070.07719.39
5.4.420.0100.06719.13
5.4.410.0000.05319.29
5.4.400.0000.08718.98
5.4.390.0070.07019.04
5.4.380.0070.07319.12
5.4.370.0030.07719.05
5.4.360.0070.08319.05
5.4.350.0070.08018.98
5.4.340.0070.06018.96
5.4.320.0030.06319.02
5.4.310.0100.05318.90
5.4.300.0070.06719.09
5.4.290.0070.04319.09
5.4.280.0100.07318.78
5.4.270.0070.06719.03
5.4.260.0030.04719.12
5.4.250.0070.03719.04
5.4.240.0000.08718.97
5.4.230.0100.07319.02
5.4.220.0000.06019.05
5.4.210.0070.08019.11
5.4.200.0030.04719.13
5.4.190.0070.04319.04
5.4.180.0070.04718.77
5.4.170.0000.05019.02
5.4.160.0070.04018.76
5.4.150.0130.07319.10
5.4.140.0130.07316.36
5.4.130.0070.06716.28
5.4.120.0100.06716.05
5.4.110.0000.07316.41
5.4.100.0030.07716.31
5.4.90.0030.07316.22
5.4.80.0100.06716.37
5.4.70.0070.05716.37
5.4.60.0130.05316.24
5.4.50.0130.07016.38
5.4.40.0070.07316.26
5.4.30.0100.05716.31
5.4.20.0030.08716.31
5.4.10.0100.06316.23
5.4.00.0130.06315.68
5.3.290.0130.07014.52
5.3.280.0030.04014.55
5.3.270.0130.06314.58
5.3.260.0130.06314.62
5.3.250.0170.06714.54
5.3.240.0170.06014.51
5.3.230.0130.04314.53
5.3.220.0070.07314.57
5.3.210.0130.06014.60
5.3.200.0030.07314.56
5.3.190.0100.07014.55
5.3.180.0100.06014.44
5.3.170.0130.07714.59
5.3.160.0030.04714.57
5.3.150.0000.09014.59
5.3.140.0170.05014.56
5.3.130.0100.07014.52
5.3.120.0030.08314.55
5.3.110.0170.05014.38
5.3.100.0100.05014.04
5.3.90.0070.04013.94
5.3.80.0030.07313.94
5.3.70.0070.05013.87
5.3.60.0070.07713.88
5.3.50.0100.07013.81
5.3.40.0100.05313.96
5.3.30.0100.06713.93
5.3.20.0070.06313.62
5.3.10.0070.07713.44
5.3.00.0100.05013.61
5.2.170.0100.05711.41
5.2.160.0030.06011.41
5.2.150.0170.05311.41
5.2.140.0070.06311.41
5.2.130.0030.03011.41
5.2.120.0030.04011.41
5.2.110.0030.06311.41
5.2.100.0130.05311.41
5.2.90.0030.06311.41
5.2.80.0170.05011.41
5.2.70.0100.04311.41
5.2.60.0030.06311.41
5.2.50.0030.06311.41
5.2.40.0030.06711.41
5.2.30.0000.06711.41
5.2.20.0030.04011.41
5.2.10.0130.05011.41
5.2.00.0000.05711.41
5.1.60.0000.05311.41
5.1.50.0130.04711.41
5.1.40.0000.06011.41
5.1.30.0000.04011.41
5.1.20.0000.03711.41
5.1.10.0070.04011.41
5.1.00.0030.03311.41
5.0.50.0030.03311.41
5.0.40.0030.02011.41
5.0.30.0030.06011.41
5.0.20.0070.04011.41
5.0.10.0000.04011.41
5.0.00.0030.06011.41
4.4.90.0000.03711.41
4.4.80.0030.03311.41
4.4.70.0030.03011.41
4.4.60.0070.02311.41
4.4.50.0000.02011.41
4.4.40.0000.03011.41
4.4.30.0000.03711.41
4.4.20.0030.01711.41
4.4.10.0100.02711.41
4.4.00.0000.05011.41
4.3.110.0100.02311.41
4.3.100.0000.02011.41
4.3.90.0070.03011.41
4.3.80.0030.05311.41
4.3.70.0000.03711.41
4.3.60.0000.02011.41
4.3.50.0000.03311.41
4.3.40.0030.05311.41
4.3.30.0000.03711.41
4.3.20.0030.03311.41
4.3.10.0030.02311.41
4.3.00.0030.01711.41

preferences:
58.37 ms | 401 KiB | 5 Q