3v4l.org

run code in 300+ PHP versions simultaneously
<?php date_default_timezone_set("America/Chicago"); $timestamp = mktime(0,0,0,11,1,2014); $a = strtotime('4 thursdays', $timestamp); $b = strtotime('first thursday + 3 weeks', $timestamp); echo date(DateTime::ISO8601, $a), "\n"; echo date(DateTime::ISO8601, $b), "\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)
8.3.70.0150.00018.20
8.3.60.0040.01116.63
8.3.50.0150.00522.15
8.3.40.0100.00718.79
8.3.30.0110.00419.14
8.3.20.0000.00720.09
8.3.10.0060.00321.85
8.3.00.0030.00519.26
8.2.180.0090.00918.66
8.2.170.0040.01122.96
8.2.160.0100.00322.11
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0030.00526.16
8.2.120.0040.00419.23
8.2.110.0000.00920.47
8.2.100.0030.00917.84
8.2.90.0040.00419.34
8.2.80.0000.00817.97
8.2.70.0060.00317.75
8.2.60.0040.00418.16
8.2.50.0040.00418.07
8.2.40.0000.00820.07
8.2.30.0040.00418.19
8.2.20.0000.00817.99
8.2.10.0040.00418.00
8.2.00.0040.00417.77
8.1.280.0070.00725.92
8.1.270.0080.00018.99
8.1.260.0070.00026.35
8.1.250.0000.00728.09
8.1.240.0060.00323.86
8.1.230.0040.00720.82
8.1.220.0050.00317.74
8.1.210.0030.00618.77
8.1.200.0050.00517.35
8.1.190.0060.00317.48
8.1.180.0050.00318.10
8.1.170.0000.00818.63
8.1.160.0000.00721.86
8.1.150.0000.00818.96
8.1.140.0040.00417.55
8.1.130.0000.00717.95
8.1.120.0040.00417.72
8.1.110.0040.00317.68
8.1.100.0040.00417.64
8.1.90.0070.00017.55
8.1.80.0000.00717.65
8.1.70.0030.00317.63
8.1.60.0000.00817.72
8.1.50.0000.00817.55
8.1.40.0080.00417.66
8.1.30.0040.00417.75
8.1.20.0060.00317.75
8.1.10.0000.00717.56
8.1.00.0040.00417.52
8.0.300.0040.00418.77
8.0.290.0000.00717.00
8.0.280.0000.00718.57
8.0.270.0000.00717.43
8.0.260.0040.00417.39
8.0.250.0000.00717.09
8.0.240.0060.00317.20
8.0.230.0000.00817.13
8.0.220.0000.00717.08
8.0.210.0000.00716.96
8.0.200.0030.00317.13
8.0.190.0040.00417.14
8.0.180.0040.00417.00
8.0.170.0030.00517.04
8.0.160.0000.00717.17
8.0.150.0020.00517.03
8.0.140.0030.00517.08
8.0.130.0080.00013.44
8.0.120.0000.00716.98
8.0.110.0000.00716.99
8.0.100.0030.00517.12
8.0.90.0040.00416.98
8.0.80.0130.00317.08
8.0.70.0000.00716.93
8.0.60.0000.00817.10
8.0.50.0070.00017.04
8.0.30.0170.00717.14
8.0.20.0150.00817.51
8.0.10.0000.00717.02
8.0.00.0050.01416.80
7.4.330.0020.00315.16
7.4.320.0030.00316.53
7.4.300.0060.00016.62
7.4.290.0060.00316.77
7.4.280.0030.00616.62
7.4.270.0000.00716.53
7.4.260.0040.00416.61
7.4.250.0070.00016.69
7.4.240.0050.00216.68
7.4.230.0000.00716.80
7.4.220.0100.01316.49
7.4.210.0040.01316.69
7.4.200.0000.00816.63
7.4.160.0130.00616.64
7.4.150.0130.00617.40
7.4.140.0120.00817.86
7.4.130.0110.01016.61
7.4.120.0080.01116.71
7.4.110.0100.00716.87
7.4.100.0070.01116.39
7.4.90.0030.01916.68
7.4.80.0100.00719.39
7.4.70.0100.00616.63
7.4.60.0060.01116.73
7.4.50.0030.00616.38
7.4.40.0100.01016.57
7.4.30.0160.00616.58
7.4.00.0060.00914.76
7.3.330.0070.00013.26
7.3.320.0140.00013.15
7.3.310.0070.00016.32
7.3.300.0070.00016.28
7.3.290.0000.00716.16
7.3.280.0070.00916.34
7.3.270.0170.00017.40
7.3.260.0130.00616.60
7.3.250.0130.00916.46
7.3.240.0060.01216.46
7.3.230.0130.00616.52
7.3.210.0110.00716.59
7.3.200.0190.00319.39
7.3.190.0060.00916.67
7.3.180.0100.00716.76
7.3.170.0140.00516.56
7.3.160.0070.01016.28
7.2.330.0100.00716.61
7.2.320.0090.00816.80
7.2.310.0070.01316.52
7.2.300.0130.01016.70
7.2.290.0100.00716.59
7.2.00.0040.01219.52
7.1.100.0060.00618.14
7.1.70.0030.00517.32
7.1.60.0060.01919.50
7.1.50.0320.01134.96
7.1.00.0030.07722.46
7.0.200.0260.01016.54
7.0.140.0000.06021.93
7.0.80.0670.06320.01
7.0.70.0430.04319.86
7.0.60.0630.07319.94
7.0.50.0430.05320.29
7.0.40.0030.05719.99
7.0.30.0130.04320.09
7.0.20.0070.04719.95
7.0.10.0030.05320.08
7.0.00.0070.08719.99
5.6.280.0100.06720.77
5.6.230.0100.07720.67
5.6.220.0100.07720.61
5.6.210.0270.05720.58
5.6.200.0100.07321.03
5.6.190.0130.04321.10
5.6.180.0130.05021.09
5.6.170.0170.03021.03
5.6.160.0070.09020.93
5.6.150.0200.07021.01
5.6.140.0100.07021.05
5.6.130.0070.04721.07
5.6.120.0070.08321.04
5.6.110.0100.08320.99
5.6.100.0070.05720.91
5.6.90.0070.08321.14
5.6.80.0170.06720.33
5.6.70.0070.05020.42
5.6.60.0100.08020.40
5.6.50.0000.07020.39
5.6.40.0030.04720.41
5.6.30.0000.06320.47
5.6.20.0100.03320.27
5.6.10.0030.04020.43
5.6.00.0070.03720.40
5.5.370.0130.08020.39
5.5.360.0130.07720.50
5.5.350.0230.06020.42
5.5.340.0170.06320.88
5.5.330.0000.05720.82
5.5.320.0070.04020.80
5.5.310.0130.07720.88
5.5.300.0030.04320.82
5.5.290.0030.09320.82
5.5.280.0100.08320.82
5.5.270.0030.09020.82
5.5.260.0000.05720.83
5.5.250.0170.07320.65
5.5.240.0000.04720.21
5.5.230.0070.08320.29
5.5.220.0100.06720.23
5.5.210.0100.04320.29
5.5.200.0100.04020.25
5.5.190.0030.04020.18
5.5.180.0070.03020.21
5.5.160.0070.03720.07
5.5.150.0030.03720.27
5.5.140.0000.04020.17
5.5.130.0070.03720.23
5.5.120.0070.03320.14
5.5.110.0000.04320.26
5.5.100.0070.03320.05
5.5.90.0100.05720.09
5.5.80.0030.03720.12
5.5.70.0070.03020.03
5.5.60.0070.05720.02
5.5.50.0070.06319.95
5.5.40.0130.06720.15
5.5.30.0000.04020.10
5.5.20.0030.03719.98
5.5.10.0130.02319.96
5.5.00.0000.04320.05
5.4.450.0030.07019.30
5.4.440.0130.07719.36
5.4.430.0030.07319.22
5.4.420.0070.04719.44
5.4.410.0000.05718.98
5.4.400.0100.07319.10
5.4.390.0100.04319.14
5.4.380.0070.04719.13
5.4.370.0130.06718.95
5.4.360.0070.09018.84
5.4.350.0100.07318.80
5.4.340.0000.04019.09
5.4.320.0070.04018.98
5.4.310.0030.04019.14
5.4.300.0030.04318.78
5.4.290.0000.04319.05
5.4.280.0070.03319.05
5.4.270.0000.03318.80
5.4.260.0030.03718.80
5.4.250.0070.06019.14
5.4.240.0130.02318.97
5.4.230.0030.08019.11
5.4.220.0070.07719.06
5.4.210.0070.07318.87
5.4.200.0000.04019.02
5.4.190.0070.03319.08
5.4.180.0030.03719.05
5.4.170.0000.04019.09
5.4.160.0030.04018.76
5.4.150.0030.05719.20
5.4.140.0070.03316.37
5.4.130.0000.03716.35
5.4.120.0000.03716.33
5.4.110.0030.03716.48
5.4.100.0200.04016.38
5.4.90.0070.04316.38
5.4.80.0000.03716.34
5.4.70.0000.03716.26
5.4.60.0000.03316.29
5.4.50.0070.03016.25
5.4.40.0100.05016.29
5.4.30.0000.03316.41
5.4.20.0000.03316.18
5.4.10.0030.03716.32
5.4.00.0170.05315.50
5.3.290.0030.07314.57
5.3.280.0070.03014.45
5.3.270.0030.04014.55
5.3.260.0000.05314.46
5.3.250.0070.02714.55
5.3.240.0070.03314.58
5.3.230.0000.04314.55
5.3.220.0030.07314.40
5.3.210.0030.04314.56
5.3.200.0030.03714.42
5.3.190.0000.03714.57
5.3.180.0000.04014.42
5.3.170.0030.03714.55
5.3.160.0030.04014.50
5.3.150.0070.03314.42
5.3.140.0030.03714.54
5.3.130.0030.06314.50
5.3.120.0000.04014.55
5.3.110.0100.02714.45
5.3.100.0000.04014.04
5.3.90.0070.02714.01
5.3.80.0000.04013.87
5.3.70.0000.03313.99
5.3.60.0070.03713.99
5.3.50.0000.04013.71
5.3.40.0000.04013.89
5.3.30.0030.03013.91
5.3.20.0000.03713.67
5.3.10.0000.03713.64
5.3.00.0100.02313.48
5.2.170.0030.02711.19
5.2.160.0030.03010.97
5.2.150.0030.03011.09
5.2.140.0000.03311.18
5.2.130.0000.03011.08
5.2.120.0070.02011.15
5.2.110.0000.03011.02
5.2.100.0070.02010.96
5.2.90.0000.03710.94
5.2.80.0000.03011.05
5.2.70.0100.06311.11
5.2.60.0070.05011.04
5.2.50.0030.06711.07
5.2.40.0030.04710.99
5.2.30.0100.04010.96
5.2.20.0070.03710.95
5.2.10.0070.05710.86
5.2.00.0000.06710.57
5.1.60.0070.04010.02
5.1.50.0030.0279.82
5.1.40.0200.0379.99
5.1.30.0030.06010.38
5.1.20.0070.05310.28
5.1.10.0070.03010.09
5.1.00.0070.02710.07
5.0.50.0030.0378.53
5.0.40.0070.0238.45
5.0.30.0000.0738.07
5.0.20.0070.0308.03
5.0.10.0070.0408.21
5.0.00.0000.0478.14
4.4.90.0030.0307.03
4.4.80.0000.0377.03
4.4.70.0000.0337.03
4.4.60.0000.0277.03
4.4.50.0000.0307.03
4.4.40.0030.0307.03
4.4.30.0000.0407.03
4.4.20.0100.0207.03
4.4.10.0070.0307.03
4.4.00.0000.0437.03
4.3.110.0030.0337.03
4.3.100.0000.0237.03
4.3.90.0000.0237.03
4.3.80.0130.0307.03
4.3.70.0030.0177.03
4.3.60.0030.0237.03
4.3.50.0000.0337.03
4.3.40.0000.0377.03
4.3.30.0030.0337.03
4.3.20.0000.0377.03
4.3.10.0030.0337.03
4.3.00.0000.0407.03

preferences:
62.41 ms | 401 KiB | 5 Q