3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "2014-12-01"; $b = "2015-02-01"; $i = date("Y-m", strtotime($a)); while($i <= date("Y-m", strtotime($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)
8.3.60.0070.01716.73
8.3.50.0170.00822.03
8.3.40.0160.01018.94
8.3.30.0100.01019.17
8.3.20.0000.01120.38
8.3.10.0090.00321.80
8.3.00.0100.00020.84
8.2.180.0140.02118.16
8.2.170.0160.01622.96
8.2.160.0070.03119.45
8.2.150.0140.00324.18
8.2.140.0070.01024.66
8.2.130.0120.00626.16
8.2.120.0060.01219.78
8.2.110.0150.00720.35
8.2.100.0220.00618.34
8.2.90.0180.00319.16
8.2.80.0140.00717.97
8.2.70.0070.01717.88
8.2.60.0120.01218.05
8.2.50.0030.02318.07
8.2.40.0130.01019.88
8.2.30.0040.01518.17
8.2.20.0000.02018.09
8.2.10.0130.00718.27
8.2.00.0140.00717.95
8.1.280.0130.02025.92
8.1.270.0100.01020.69
8.1.260.0130.00326.35
8.1.250.0130.00628.09
8.1.240.0150.00623.94
8.1.230.0200.00719.19
8.1.220.0130.01017.78
8.1.210.0160.01018.77
8.1.200.0060.02117.48
8.1.190.0030.01717.48
8.1.180.0100.01318.10
8.1.170.0070.01318.83
8.1.160.0030.01622.11
8.1.150.0110.01419.12
8.1.140.0040.02119.45
8.1.130.0060.01317.88
8.1.120.0030.01617.80
8.1.110.0070.01317.73
8.1.100.0090.01517.55
8.1.90.0030.02017.68
8.1.80.0030.01917.77
8.1.70.0060.01817.68
8.1.60.0170.00717.64
8.1.50.0070.01117.77
8.1.40.0030.02117.77
8.1.30.0130.01317.71
8.1.20.0030.01917.82
8.1.10.0160.00617.61
8.1.00.0030.01717.76
8.0.300.0110.01118.77
8.0.290.0090.00916.73
8.0.280.0070.01418.42
8.0.270.0030.01917.30
8.0.260.0030.02217.30
8.0.250.0000.01817.08
8.0.240.0030.01617.16
8.0.230.0030.01617.09
8.0.220.0140.00616.88
8.0.210.0040.01517.04
8.0.200.0110.00717.13
8.0.190.0030.01617.11
8.0.180.0040.01817.10
8.0.170.0060.01617.11
8.0.160.0040.01517.13
8.0.150.0100.01016.91
8.0.140.0090.01217.07
8.0.130.0030.01013.46
8.0.120.0110.00716.91
8.0.110.0070.01717.05
8.0.100.0100.01417.06
8.0.90.0030.01617.09
8.0.80.0100.03916.95
8.0.70.0040.01817.01
8.0.60.0070.01317.01
8.0.50.0160.00416.86
8.0.30.0280.04816.89
8.0.20.0340.04317.40
8.0.10.0100.01316.97
8.0.00.0210.03816.83
7.4.330.0030.02015.03
7.4.320.0000.01816.44
7.4.300.0070.01016.53
7.4.290.0060.01516.48
7.4.280.0070.01416.56
7.4.270.0130.01016.68
7.4.260.0030.02616.47
7.4.250.0040.01816.43
7.4.240.0100.01016.53
7.4.230.0000.02416.38
7.4.220.0170.03716.62
7.4.210.0180.06016.64
7.4.200.0040.01816.73
7.4.160.0280.05016.51
7.4.150.0390.06317.40
7.4.140.0510.04217.86
7.4.130.0320.05116.54
7.4.120.0280.04416.68
7.4.110.0200.03716.46
7.4.100.0290.04316.71
7.4.90.0230.03616.61
7.4.80.0160.04819.39
7.4.70.0190.05016.70
7.4.60.0200.03916.52
7.4.50.0140.01116.68
7.4.40.0180.04116.49
7.4.30.0230.04916.69
7.4.00.0130.01915.07
7.3.330.0050.01313.27
7.3.320.0570.05113.27
7.3.310.0030.01616.25
7.3.300.0060.01316.23
7.3.290.0150.04316.32
7.3.280.0230.04716.27
7.3.270.0640.09317.40
7.3.260.0400.04316.44
7.3.250.0350.04116.63
7.3.240.0190.04216.50
7.3.230.0610.04716.39
7.3.210.0380.02016.63
7.3.200.0400.05019.39
7.3.190.0130.03516.41
7.3.180.0380.05516.54
7.3.170.0230.04616.71
7.3.160.0350.03216.35
7.2.330.0210.03316.70
7.2.320.0270.03816.94
7.2.310.0320.03416.56
7.2.300.0350.04216.59
7.2.290.0360.06616.81
7.2.60.0070.02116.99
7.2.00.0070.03019.79
7.1.200.0090.01915.87
7.1.100.0090.02218.05
7.1.70.0070.01717.14
7.1.60.0170.03119.46
7.1.50.0260.03617.09
7.1.00.0100.09322.27
7.0.200.0340.00616.80
7.0.140.0100.05322.21
7.0.80.0470.08719.89
7.0.70.0530.09319.89
7.0.60.0470.08020.04
7.0.50.0600.06020.27
7.0.40.0100.06720.18
7.0.30.0130.10020.05
7.0.20.0100.09320.15
7.0.10.0170.09020.12
7.0.00.0130.09020.07
5.6.280.0100.10021.04
5.6.230.0230.08720.59
5.6.220.0130.09320.64
5.6.210.0300.05320.52
5.6.200.0130.09320.96
5.6.190.0100.09721.00
5.6.180.0170.07721.08
5.6.170.0070.06720.93
5.6.160.0170.08321.04
5.6.150.0130.05721.07
5.6.140.0130.06321.03
5.6.130.0170.10021.11
5.6.120.0130.10321.07
5.6.110.0130.09321.09
5.6.100.0130.10021.02
5.6.90.0370.09021.07
5.6.80.0130.07020.32
5.6.70.0130.09020.37
5.6.60.0270.08020.48
5.6.50.0100.09720.52
5.6.40.0100.10020.37
5.6.30.0070.09720.49
5.6.20.0000.06020.42
5.6.10.0130.09720.39
5.6.00.0100.09720.41
5.5.370.0200.08320.39
5.5.360.0070.06720.40
5.5.350.0130.09720.42
5.5.340.0130.10320.93
5.5.330.0200.08720.86
5.5.320.0200.09020.90
5.5.310.0170.10320.79
5.5.300.0170.08020.75
5.5.290.0230.08320.88
5.5.280.0170.09020.83
5.5.270.0270.09020.90
5.5.260.0130.10720.76
5.5.250.0100.08320.66
5.5.240.0100.05320.31
5.5.230.0300.09020.26
5.5.220.0200.06020.26
5.5.210.0070.09320.29
5.5.200.0170.05320.23
5.5.190.0170.07720.11
5.5.180.0230.09020.26
5.5.160.0230.09319.96
5.5.150.0170.09320.12
5.5.140.0170.09719.98
5.5.130.0200.05020.21
5.5.120.0330.07320.24
5.5.110.0170.09020.07
5.5.100.0270.08719.95
5.5.90.0270.08320.14
5.5.80.0170.09320.09
5.5.70.0200.09020.05
5.5.60.0100.08320.14
5.5.50.0170.09720.08
5.5.40.0170.09320.07
5.5.30.0100.05719.95
5.5.20.0000.05720.04
5.5.10.0130.08720.05
5.5.00.0170.08720.02
5.4.450.0270.08319.04
5.4.440.0030.11019.21
5.4.430.0100.10019.04
5.4.420.0230.05319.39
5.4.410.0130.09019.17
5.4.400.0170.05719.09
5.4.390.0200.07718.88
5.4.380.0130.05718.86
5.4.370.0130.07018.98
5.4.360.0200.10019.08
5.4.350.0130.06718.92
5.4.340.0130.07718.98
5.4.320.0270.08718.89
5.4.310.0100.10018.92
5.4.300.0100.06319.04
5.4.290.0170.06318.75
5.4.280.0230.09019.04
5.4.270.0170.08718.71
5.4.260.0230.06718.86
5.4.250.0270.08318.82
5.4.240.0130.09318.82
5.4.230.0000.06018.89
5.4.220.0100.05018.71
5.4.210.0130.05718.96
5.4.200.0070.11018.85
5.4.190.0170.08318.74
5.4.180.0000.08718.90
5.4.170.0100.04319.01
5.4.160.0170.07018.73
5.4.150.0100.04018.87
5.4.140.0200.09016.05
5.4.130.0130.04316.18
5.4.120.0070.08316.28
5.4.110.0130.04016.20
5.4.100.0130.06016.33
5.4.90.0130.04316.46
5.4.80.0130.09316.31
5.4.70.0100.09716.16
5.4.60.0130.09316.23
5.4.50.0100.06316.15
5.4.40.0230.08016.15
5.4.30.0130.07716.22
5.4.20.0030.05316.27
5.4.10.0070.09016.18
5.4.00.0130.09315.79

preferences:
50.48 ms | 401 KiB | 5 Q