3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "2007-12-01"; $b = "2008-02-15"; $i = date("Ym", strtotime($a)); while($i <= date("Ym", strtotime($b))){ echo $i."\n"; if(substr($i, 4, 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)
8.3.60.0040.01216.88
8.3.50.0110.00722.12
8.3.40.0070.01019.13
8.3.30.0030.01018.96
8.3.20.0070.00020.33
8.3.10.0050.00823.26
8.3.00.0110.00322.07
8.2.180.0070.00718.41
8.2.170.0140.00722.96
8.2.160.0070.00720.39
8.2.150.0030.01025.66
8.2.140.0060.00724.66
8.2.130.0070.01025.41
8.2.120.0060.00722.11
8.2.110.0100.00321.96
8.2.100.0110.01119.95
8.2.90.0140.00720.46
8.2.80.0140.00520.07
8.2.70.0140.00620.00
8.2.60.0150.00720.01
8.2.50.0180.00320.12
8.2.40.0110.00820.78
8.2.30.0150.00420.13
8.2.20.0130.00620.04
8.2.10.0140.00420.18
8.2.00.0160.00220.09
8.1.280.0090.01225.92
8.1.270.0060.00723.36
8.1.260.0060.00725.51
8.1.250.0080.00326.38
8.1.240.0090.00324.32
8.1.230.0080.00720.41
8.1.220.0110.00620.01
8.1.210.0110.00620.34
8.1.200.0090.01019.95
8.1.190.0130.00519.91
8.1.180.0140.00320.11
8.1.170.0120.00520.87
8.1.160.0130.00421.45
8.1.150.0100.00720.38
8.1.140.0080.00819.94
8.1.130.0110.00520.02
8.1.120.0110.00719.95
8.1.110.0120.00419.99
8.1.100.0110.00719.93
8.1.90.0130.00319.99
8.1.80.0120.00319.94
8.1.70.0100.00619.94
8.1.60.0100.00520.01
8.1.50.0120.00419.98
8.1.40.0110.00519.97
8.1.30.0100.00619.98
8.1.20.0110.00419.96
8.1.10.0130.00219.96
8.1.00.0120.00319.93
8.0.300.0110.00320.34
8.0.290.0160.00419.75
8.0.280.0130.00720.26
8.0.270.0080.00919.82
8.0.260.0100.00819.82
8.0.250.0110.00319.82
8.0.240.0110.00619.83
8.0.230.0080.00819.80
8.0.220.0100.00419.81
8.0.210.0150.00219.77
8.0.200.0110.00719.81
8.0.190.0080.00919.85
8.0.180.0100.00719.82
8.0.170.0110.00719.76
8.0.160.0110.00419.81
8.0.150.0110.00619.79
8.0.140.0160.00419.76
8.0.130.0130.00418.60
8.0.120.0130.00319.76
8.0.110.0110.00319.77
8.0.100.0090.00719.83
8.0.90.0120.00719.78
8.0.80.0140.00419.81
8.0.70.0090.00519.80
8.0.60.0110.00619.82
8.0.50.0110.00519.76
8.0.30.0150.00619.25
8.0.20.0140.00719.26
8.0.10.0120.00519.78
8.0.00.0130.00519.04
7.4.330.0080.00419.11
7.4.320.0120.00419.66
7.4.300.0120.00419.64
7.4.290.0150.00419.63
7.4.280.0160.00519.66
7.4.270.0120.00519.67
7.4.260.0170.00519.62
7.4.250.0170.00519.62
7.4.240.0100.00318.91
7.4.230.0080.00819.70
7.4.220.0150.00519.69
7.4.210.0150.00818.93
7.4.200.0170.00519.61
7.4.190.0250.00221.12
7.4.180.0230.00821.12
7.4.160.0210.00419.63
7.4.150.0200.00419.88
7.4.140.0150.00919.49
7.4.130.0160.00618.92
7.4.120.0170.00818.92
7.4.110.0200.00919.65
7.4.100.0190.00719.56
7.4.90.0190.00619.67
7.4.80.0240.00520.54
7.4.70.0170.00919.70
7.4.60.0240.00219.63
7.4.50.0160.00419.67
7.4.40.0190.00619.61
7.4.30.0170.00319.58
7.4.20.0210.00519.55
7.4.10.0200.00719.54
7.4.00.0160.00818.49
7.3.330.0190.00318.46
7.3.320.0210.00618.52
7.3.310.0170.00519.58
7.3.300.0200.00619.52
7.3.290.0120.00619.55
7.3.280.0130.00818.28
7.3.270.0160.00419.88
7.3.260.0150.00419.57
7.3.250.0130.00618.81
7.3.240.0140.00619.58
7.3.230.0120.00719.56
7.3.220.0200.00221.12
7.3.210.0140.00519.64
7.3.200.0150.00620.54
7.3.190.0180.00319.54
7.3.180.0160.00319.64
7.3.170.0130.00819.58
7.3.160.0130.01019.60
7.3.150.0160.00719.61
7.3.140.0180.00519.58
7.3.130.0150.00719.64
7.3.120.0170.00519.59
7.3.110.0170.00619.68
7.3.100.0160.00719.58
7.3.90.0130.00818.51
7.3.80.0100.01018.35
7.3.70.0120.00718.40
7.3.60.0140.00518.41
7.3.50.0130.00718.49
7.3.40.0150.00418.42
7.3.30.0150.00418.43
7.3.20.0150.00618.61
7.3.10.0150.00618.50
7.3.00.0120.00718.47
7.2.340.0170.00521.12
7.2.330.0170.00419.64
7.2.320.0150.00719.59
7.2.310.0200.00319.61
7.2.300.0160.00619.76
7.2.290.0140.01119.61
7.2.280.0130.00919.74
7.2.270.0170.00619.68
7.2.260.0140.00719.66
7.2.250.0130.00819.68
7.2.240.0120.01119.75
7.2.230.0180.00419.69
7.2.220.0140.00718.56
7.2.210.0140.00618.52
7.2.200.0170.00318.56
7.2.190.0120.00918.50
7.2.180.0140.00918.60
7.2.170.0120.00818.56
7.2.160.0150.00518.56
7.2.150.0170.00818.74
7.2.140.0140.00818.72
7.2.130.0140.00618.83
7.2.120.0150.00618.84
7.2.110.0130.00718.68
7.2.100.0120.00818.79
7.2.90.0210.00518.64
7.2.80.0190.00818.70
7.2.70.0200.00418.83
7.2.60.0160.00618.74
7.2.50.0180.00718.63
7.2.40.0180.00818.72
7.2.30.0170.00718.79
7.2.20.0210.00318.70
7.2.10.0170.01118.71
7.2.00.0120.00918.99
7.1.330.0190.00919.37
7.1.320.0150.00718.03
7.1.310.0190.00518.04
7.1.300.0160.00818.02
7.1.290.0160.00917.97
7.1.280.0450.00518.05
7.1.270.0180.00818.01
7.1.260.0230.00218.08
7.1.250.0190.00818.05
7.1.240.0230.00618.00
7.1.230.0170.00618.00
7.1.220.0220.00918.04
7.1.210.0180.01117.97
7.1.200.0280.00917.99
7.1.190.0230.00718.01
7.1.180.0200.00517.93
7.1.170.0250.00418.00
7.1.160.0230.00517.99
7.1.150.0290.00817.93
7.1.140.0200.00917.93
7.1.130.0230.00618.00
7.1.120.0230.00817.94
7.1.110.0170.00717.97
7.1.100.0150.00818.00
7.1.90.0190.00718.00
7.1.80.0170.00818.09
7.1.70.0220.00717.94
7.1.60.0220.00818.30
7.1.50.0200.00817.81
7.1.40.0180.00618.06
7.1.30.0220.00617.97
7.1.20.0260.00317.98
7.1.10.0180.01218.04
7.1.00.0180.02218.89
7.0.330.0160.00817.76
7.0.320.0170.00917.77
7.0.310.0160.00717.75
7.0.300.0180.00417.86
7.0.290.0190.00617.70
7.0.280.0150.00517.77
7.0.270.0140.00817.81
7.0.260.0200.00717.80
7.0.250.0230.00417.75
7.0.240.0150.00917.87
7.0.230.0180.00617.82
7.0.220.0170.00517.76
7.0.210.0190.00317.76
7.0.200.0230.00817.24
7.0.190.0180.00817.89
7.0.180.0270.00517.79
7.0.170.0170.00817.83
7.0.160.0230.00717.88
7.0.150.0190.01017.85
7.0.140.0140.02318.72
7.0.130.0230.00617.85
7.0.120.0210.00417.82
7.0.110.0170.00717.82
7.0.100.0160.00617.81
7.0.90.0160.01218.28
7.0.80.0140.01118.22
7.0.70.0180.01418.31
7.0.60.0130.02218.27
7.0.50.0130.02018.35
7.0.40.0130.01918.29
7.0.30.0130.01918.26
7.0.20.0130.01318.29
7.0.10.0150.01918.26
7.0.00.0140.01218.30
5.6.400.0100.00818.13
5.6.390.0130.00818.19
5.6.380.0180.00718.17
5.6.370.0140.01018.18
5.6.360.0130.00918.13
5.6.350.0180.00618.16
5.6.340.0160.00418.11
5.6.330.0140.00818.09
5.6.320.0160.00518.14
5.6.310.0130.00818.14
5.6.300.0130.00918.21
5.6.290.0150.00718.23
5.6.280.0080.02518.77
5.6.270.0140.00618.18
5.6.260.0160.00518.17
5.6.250.0120.00918.30
5.6.240.0140.01618.65
5.6.230.0130.01418.74
5.6.220.0150.01818.74
5.6.210.0120.02118.63
5.6.200.0140.01218.75
5.6.190.0130.02018.75
5.6.180.0120.02218.69
5.6.170.0120.02318.68
5.6.160.0120.02218.67
5.6.150.0140.02218.63
5.6.140.0130.02118.63
5.6.130.0100.02418.72
5.6.120.0150.02118.68
5.6.110.0110.02218.71
5.6.100.0130.01318.79
5.6.90.0120.01618.80
5.6.80.0140.01518.61
5.6.70.0110.01318.62
5.6.60.0140.02118.64
5.6.50.0120.01918.65
5.6.40.0110.01418.58
5.6.30.0140.01718.59
5.6.20.0090.01718.57
5.6.10.0110.02418.57
5.6.00.0150.01318.55
5.5.380.0140.01518.58
5.5.370.0130.01318.64
5.5.360.0160.01818.66
5.5.350.0200.02118.61
5.5.340.0150.01518.70
5.5.330.0150.01518.68
5.5.320.0210.01918.74
5.5.310.0190.02118.61
5.5.300.0200.01218.75
5.5.290.0180.01118.71
5.5.280.0140.02418.71
5.5.270.0150.01818.67
5.5.260.0140.01418.64
5.5.250.0130.01518.52
5.5.240.0110.02418.56
5.5.230.0150.01418.50
5.5.220.0130.02118.45
5.5.210.0160.02018.54
5.5.200.0160.01718.46
5.5.190.0140.01318.53
5.5.180.0140.01618.53
5.5.170.0170.00518.12
5.5.160.0160.02018.58
5.5.150.0150.02118.54
5.5.140.0140.01418.58
5.5.130.0180.01818.50
5.5.120.0160.02018.49
5.5.110.0150.02218.53
5.5.100.0150.01318.54
5.5.90.0150.01318.52
5.5.80.0140.01418.51
5.5.70.0100.01718.46
5.5.60.0160.02218.48
5.5.50.0150.02018.61
5.5.40.0140.02218.59
5.5.30.0170.01418.56
5.5.20.0180.01918.50
5.5.10.0170.02118.49
5.5.00.0150.02118.47
5.4.450.0130.01317.40
5.4.440.0140.02017.37
5.4.430.0130.00917.37
5.4.420.0100.01417.30
5.4.410.0130.01017.32
5.4.400.0080.02217.28
5.4.390.0120.01317.24
5.4.380.0080.02317.24
5.4.370.0110.01617.30
5.4.360.0110.01317.27
5.4.350.0150.01917.28
5.4.340.0130.01117.26
5.4.330.0110.00716.84
5.4.320.0130.01517.32
5.4.310.0120.01417.27
5.4.300.0110.02017.32
5.4.290.0140.01117.29
5.4.280.0110.01417.30
5.4.270.0130.01417.25
5.4.260.0120.01817.36
5.4.250.0150.01917.23
5.4.240.0160.01417.27
5.4.230.0100.01317.27
5.4.220.0120.02017.30
5.4.210.0110.01217.27
5.4.200.0130.01817.28
5.4.190.0130.01817.33
5.4.180.0130.01917.23
5.4.170.0110.02117.30
5.4.160.0100.01517.23
5.4.150.0110.01117.24
5.4.140.0100.02116.74
5.4.130.0110.01816.75
5.4.120.0110.01116.74
5.4.110.0130.01816.72
5.4.100.0130.01516.78
5.4.90.0090.01516.75
5.4.80.0150.01816.75
5.4.70.0110.01216.75
5.4.60.0100.01916.75
5.4.50.0110.01816.76
5.4.40.0130.01616.76
5.4.30.0110.01716.74
5.4.20.0090.01616.73
5.4.10.0110.01516.77
5.4.00.0110.01916.60

preferences:
50.14 ms | 401 KiB | 5 Q