3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "2014-12-01"; $b = "2015-01-01"; $i = date("Y-m", strtotime($a)); while($i <= date("Y-m", strtotime($b))){ echo $i."\n"; if(substr($i, 5, 2) == "12") $i = (date("Y-", strtotime($i."01")) + 1)."01"; else $i++; }

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)
8.3.60.0230.02616.75
8.3.50.0250.02122.02
8.3.40.0130.02519.08
8.3.30.0220.01918.99
8.3.20.0150.00620.39
8.3.10.0090.01321.91
8.3.00.0090.01220.80
8.2.180.0070.03218.31
8.2.170.0240.02722.96
8.2.160.0160.02021.93
8.2.150.0100.01024.18
8.2.140.0120.00924.66
8.2.130.0160.00326.16
8.2.120.0030.01719.79
8.2.110.0030.01920.52
8.2.100.0200.01318.16
8.2.90.0090.01219.34
8.2.80.0070.02017.97
8.2.70.0140.00717.88
8.2.60.0100.01617.80
8.2.50.0070.01818.07
8.2.40.0060.01520.07
8.2.30.0000.01918.09
8.2.20.0040.01817.94
8.2.10.0100.01318.20
8.2.00.0070.01417.94
8.1.280.0110.02825.92
8.1.270.0060.01620.64
8.1.260.0100.01426.35
8.1.250.0170.00728.09
8.1.240.0130.01023.96
8.1.230.0070.02019.09
8.1.220.0100.01017.78
8.1.210.0070.01318.77
8.1.200.0060.01917.35
8.1.190.0100.01017.35
8.1.180.0100.01718.10
8.1.170.0180.00918.79
8.1.160.0070.01821.95
8.1.150.0140.01418.85
8.1.140.0070.01619.41
8.1.130.0070.01517.82
8.1.120.0040.01817.71
8.1.110.0090.01217.60
8.1.100.0100.01017.61
8.1.90.0160.01017.59
8.1.80.0100.01317.68
8.1.70.0110.01817.54
8.1.60.0120.01217.80
8.1.50.0070.01717.55
8.1.40.0030.02417.65
8.1.30.0030.02217.84
8.1.20.0030.02117.82
8.1.10.0030.02217.52
8.1.00.0090.01217.63
8.0.300.0030.01618.77
8.0.290.0060.01217.00
8.0.280.0100.01018.46
8.0.270.0090.01217.26
8.0.260.0070.02017.39
8.0.250.0100.01717.20
8.0.240.0070.01317.23
8.0.230.0030.01717.22
8.0.220.0030.01917.23
8.0.210.0100.01017.19
8.0.200.0100.01017.22
8.0.190.0100.01117.18
8.0.180.0030.01917.09
8.0.170.0040.01817.21
8.0.160.0030.01717.24
8.0.150.0030.01717.16
8.0.140.0030.01717.11
8.0.130.0030.01313.50
8.0.120.0090.01217.04
8.0.110.0130.00717.18
8.0.100.0120.00917.19
8.0.90.0060.01217.13
8.0.80.0200.05417.08
8.0.70.0070.01117.07
8.0.60.0030.01616.95
8.0.50.0070.01417.13
8.0.30.0270.05517.38
8.0.20.0160.04917.40
8.0.10.0090.01617.23
8.0.00.0250.05317.04
7.4.330.0050.00015.03
7.4.320.0060.00016.74
7.4.300.0000.00616.64
7.4.290.0000.00816.75
7.4.280.0040.00416.57
7.4.270.0000.00716.67
7.4.260.0090.00016.76
7.4.250.0080.00016.59
7.4.240.0020.00616.59
7.4.230.0030.00316.79
7.4.220.0090.00916.67
7.4.210.0110.00416.78
7.4.200.0030.00616.85
7.4.160.0080.00816.93
7.4.150.0090.00917.40
7.4.140.0090.01117.86
7.4.130.0150.00516.65
7.4.120.0090.00816.74
7.4.110.0090.01016.82
7.4.100.0070.01016.80
7.4.90.0100.00616.90
7.4.80.0140.00319.39
7.4.70.0000.01816.64
7.4.60.0100.00616.79
7.4.50.0040.00416.70
7.4.40.0030.01316.87
7.4.30.0070.01016.77
7.4.00.0120.00414.86
7.3.330.0040.00313.27
7.3.320.0000.01413.39
7.3.310.0030.00316.34
7.3.300.0000.00616.46
7.3.290.0090.00716.49
7.3.280.0090.00916.49
7.3.270.0110.00817.40
7.3.260.0100.00716.64
7.3.250.0080.00916.55
7.3.240.0140.00316.54
7.3.230.0140.00416.63
7.3.210.0110.00616.55
7.3.200.0060.00919.39
7.3.190.0090.01216.68
7.3.180.0130.00316.49
7.3.170.0130.00916.53
7.3.160.0090.00616.77
7.2.330.0110.00816.82
7.2.320.0100.00816.97
7.2.310.0060.01216.92
7.2.300.0130.01016.64
7.2.290.0110.00616.62
7.2.60.0040.01116.95
7.2.00.0030.01319.78
7.1.200.0070.00715.95
7.1.100.0000.01318.43
7.1.70.0000.00817.43
7.1.60.0000.01719.46
7.1.50.0040.00817.33
7.1.00.0030.07722.33
7.0.200.0170.00316.68
7.0.140.0030.03721.95
7.0.100.0070.08319.93
7.0.90.0170.08019.95
7.0.80.0030.07719.94
7.0.70.0130.03019.81
7.0.60.0070.08020.08
7.0.50.0070.03720.39
7.0.40.0130.07020.13
7.0.30.0100.06320.18
7.0.20.0100.06320.11
7.0.10.0030.06320.16
7.0.00.0130.04720.03
5.6.280.0030.07320.92
5.6.250.0170.07320.62
5.6.240.0130.04720.63
5.6.230.0070.08720.66
5.6.220.0130.07720.49
5.6.210.0070.03720.66
5.6.200.0130.05021.00
5.6.190.0000.07721.02
5.6.180.0070.05720.94
5.6.170.0100.04721.00
5.6.160.0030.05020.98
5.6.150.0170.06021.13
5.6.140.0100.06721.16
5.6.130.0070.04721.01
5.6.120.0030.09721.07
5.6.110.0070.07021.00
5.6.100.0130.05021.03
5.6.90.0030.05021.05
5.6.80.0030.05020.40
5.6.70.0000.07720.47
5.6.60.0070.05720.45
5.6.50.0030.08720.43
5.6.40.0070.07020.45
5.6.30.0130.03720.52
5.6.20.0070.07320.45
5.6.10.0070.07020.43
5.6.00.0130.06720.46
5.5.380.0070.05320.34
5.5.370.0170.05720.38
5.5.360.0070.04020.48
5.5.350.0130.07020.37
5.5.340.0000.04320.93
5.5.330.0130.04020.88
5.5.320.0030.04720.80
5.5.310.0000.06020.86
5.5.300.0070.05020.77
5.5.290.0000.06720.88
5.5.280.0000.07720.64
5.5.270.0100.04020.87
5.5.260.0070.08320.84
5.5.250.0030.04320.49
5.5.240.0030.06720.27
5.5.230.0070.08320.21
5.5.220.0070.04320.20
5.5.210.0070.07720.26
5.5.200.0030.08720.28
5.5.190.0100.06720.21
5.5.180.0070.08720.17
5.5.160.0130.07320.26
5.5.150.0070.04320.18
5.5.140.0100.06020.26
5.5.130.0030.03320.14
5.5.120.0070.03020.24
5.5.110.0030.04720.20
5.5.100.0030.03720.07
5.5.90.0030.04320.06
5.5.80.0000.03720.15
5.5.70.0000.04320.08
5.5.60.0030.05019.96
5.5.50.0070.03720.00
5.5.40.0070.07720.13
5.5.30.0070.05719.95
5.5.20.0030.04020.10
5.5.10.0030.05020.08
5.5.00.0030.04020.03
5.4.450.0030.08319.29
5.4.440.0000.04719.30
5.4.430.0070.04319.39
5.4.420.0030.07719.23
5.4.410.0030.04019.30
5.4.400.0130.07019.05
5.4.390.0000.07319.23
5.4.380.0030.06019.14
5.4.370.0030.08319.05
5.4.360.0070.04319.07
5.4.350.0170.06318.79
5.4.340.0130.07318.96
5.4.320.0170.06718.98
5.4.310.0000.04319.08
5.4.300.0000.04318.96
5.4.290.0030.04018.97
5.4.280.0000.04318.78
5.4.270.0070.03318.90
5.4.260.0030.04018.96
5.4.250.0070.04019.04
5.4.240.0070.02719.09
5.4.230.0000.04019.06
5.4.220.0070.03718.77
5.4.210.0070.03718.96
5.4.200.0130.06719.09
5.4.190.0030.08018.95
5.4.180.0000.04319.08
5.4.170.0030.05319.13
5.4.160.0100.03319.00
5.4.150.0070.03318.79
5.4.140.0030.04016.35
5.4.130.0030.03716.44
5.4.120.0100.05016.31
5.4.110.0100.03016.39
5.4.100.0030.03716.39
5.4.90.0000.03716.27
5.4.80.0030.02716.29
5.4.70.0070.02716.48
5.4.60.0030.03316.32
5.4.50.0000.04016.20
5.4.40.0000.03716.30
5.4.30.0070.02716.18
5.4.20.0030.03016.33
5.4.10.0030.03016.40
5.4.00.0030.03315.71
5.3.290.0100.04014.52
5.3.280.0070.04014.57
5.3.270.0030.05014.57
5.3.260.0070.03714.46
5.3.250.0000.04014.44
5.3.240.0070.03314.56
5.3.230.0070.03714.54
5.3.220.0030.04714.42
5.3.210.0070.03714.56
5.3.200.0030.04014.54
5.3.190.0030.04014.51
5.3.180.0030.03714.42
5.3.170.0000.04314.44
5.3.160.0030.03714.50
5.3.150.0100.03014.52
5.3.140.0000.03314.53
5.3.130.0000.03714.53
5.3.120.0030.03314.40
5.3.110.0030.03014.48
5.3.100.0000.03313.86
5.3.90.0030.03713.88
5.3.80.0030.03014.02
5.3.70.0030.03313.88
5.3.60.0100.03013.86
5.3.50.0030.03713.80
5.3.40.0000.03313.93
5.3.30.0130.06713.87
5.3.20.0030.03713.66
5.3.10.0030.03313.59
5.3.00.0070.03013.59
5.2.170.0030.03011.13
5.2.160.0030.02310.97
5.2.150.0030.04011.00
5.2.140.0000.03311.10
5.2.130.0070.02311.14
5.2.120.0000.06311.13
5.2.110.0000.06711.08
5.2.100.0070.06010.94
5.2.90.0000.04011.08
5.2.80.0070.02711.02
5.2.70.0070.03010.95
5.2.60.0100.05711.09
5.2.50.0000.07010.83
5.2.40.0100.05310.94
5.2.30.0070.06310.77
5.2.20.0170.02710.99
5.2.10.0070.03010.73
5.2.00.0030.03310.70
5.1.60.0030.0539.98
5.1.50.0000.05010.10
5.1.40.0000.06010.05
5.1.30.0000.03710.19
5.1.20.0070.03710.36
5.1.10.0100.05310.13
5.1.00.0100.04710.12
5.0.50.0030.0479.15
5.0.40.0000.0239.15
5.0.30.0030.0709.15
5.0.20.0100.0139.15
5.0.10.0000.0239.15
5.0.00.0030.0509.15
4.4.90.0070.0309.15
4.4.80.0030.0379.15
4.4.70.0030.0179.15
4.4.60.0030.0179.15
4.4.50.0070.0139.15
4.4.40.0000.0539.15
4.4.30.0000.0409.15
4.4.20.0030.0339.15
4.4.10.0070.0309.15
4.4.00.0030.0409.15
4.3.110.0000.0379.15
4.3.100.0000.0179.15
4.3.90.0000.0179.15
4.3.80.0000.0279.15
4.3.70.0030.0239.15
4.3.60.0070.0239.15
4.3.50.0030.0179.15
4.3.40.0070.0439.15
4.3.30.0030.0279.15
4.3.20.0030.0139.15
4.3.10.0000.0179.15
4.3.00.0000.0139.15

preferences:
69.86 ms | 401 KiB | 5 Q