3v4l.org

run code in 300+ PHP versions simultaneously
<?php $characters = ["A", "a", "Φ", "φ", "1"]; foreach ($characters as $character) { var_dump(IntlChar::islower($character)); } ?>

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)
8.3.60.0150.00016.75
8.3.50.0130.00921.33
8.3.40.0140.00018.71
8.3.30.0100.01018.57
8.3.20.0050.00320.33
8.3.10.0040.00423.50
8.3.00.0040.00422.57
8.2.180.0140.00016.75
8.2.170.0090.00622.96
8.2.160.0030.01022.21
8.2.150.0040.00424.18
8.2.140.0030.00524.66
8.2.130.0040.00426.16
8.2.120.0040.00417.63
8.2.110.0030.00721.13
8.2.100.0070.00417.88
8.2.90.0000.00819.20
8.2.80.0040.00417.97
8.2.70.0040.00417.63
8.2.60.0040.00417.93
8.2.50.0060.00318.07
8.2.40.0050.00321.26
8.2.30.0040.00420.02
8.2.20.0000.00817.87
8.2.10.0040.00418.18
8.2.00.0070.00018.13
8.1.280.0100.01025.92
8.1.270.0030.00620.20
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0080.00022.80
8.1.230.0090.00317.48
8.1.220.0000.00817.77
8.1.210.0090.00018.77
8.1.200.0090.00017.47
8.1.190.0000.00817.35
8.1.180.0040.00418.10
8.1.170.0000.00818.62
8.1.160.0000.00722.05
8.1.150.0050.00318.88
8.1.140.0040.00417.60
8.1.130.0030.00617.81
8.1.120.0060.00317.58
8.1.110.0040.00417.45
8.1.100.0050.00217.62
8.1.90.0070.00017.65
8.1.80.0000.00717.56
8.1.70.0030.00317.57
8.1.60.0040.00417.71
8.1.50.0030.00617.62
8.1.40.0040.00417.61
8.1.30.0000.00817.70
8.1.20.0080.00017.74
8.1.10.0080.00017.72
8.1.00.0080.00017.58
8.0.300.0000.00918.77
8.0.290.0040.00416.75
8.0.280.0000.00718.54
8.0.270.0030.00317.38
8.0.260.0060.00017.32
8.0.250.0070.00017.13
8.0.240.0000.00717.16
8.0.230.0100.00016.90
8.0.220.0030.00317.05
8.0.210.0030.00317.04
8.0.200.0000.00717.02
8.0.190.0110.00016.97
8.0.180.0030.00517.04
8.0.170.0000.00717.02
8.0.160.0040.00416.97
8.0.150.0000.00816.98
8.0.140.0040.00417.04
8.0.130.0000.00513.43
8.0.120.0030.00516.99
8.0.110.0070.00016.98
8.0.100.0000.00716.93
8.0.90.0000.00817.03
8.0.80.0070.01017.00
8.0.70.0030.00517.04
8.0.60.0000.00816.93
8.0.50.0040.00416.95
8.0.30.0080.01217.28
8.0.20.0110.00817.40
8.0.10.0040.00417.17
8.0.00.0060.01116.95
7.4.330.0030.00315.26
7.4.320.0030.00316.48
7.4.300.0060.00016.64
7.4.290.0040.00416.74
7.4.280.0060.00316.74
7.4.270.0000.00716.63
7.4.260.0000.00716.59
7.4.250.0070.00016.50
7.4.240.0050.00216.64
7.4.230.0040.00416.70
7.4.220.0060.01216.75
7.4.210.0110.00316.75
7.4.200.0070.00016.46
7.4.160.0070.01116.39
7.4.150.0180.00017.40
7.4.140.0180.00617.86
7.4.130.0120.00916.53
7.4.120.0130.00616.66
7.4.110.0030.01316.62
7.4.100.0100.01716.49
7.4.90.0030.01316.51
7.4.80.0100.00619.39
7.4.70.0140.00716.70
7.4.60.0070.01016.55
7.4.50.0040.00416.60
7.4.40.0090.01016.84
7.4.30.0160.00016.46
7.4.00.0080.00414.97
7.3.330.0090.00013.16
7.3.320.0040.00413.12
7.3.310.0070.00016.47
7.3.300.0000.00616.27
7.3.290.0060.01116.33
7.3.280.0080.01116.39
7.3.270.0070.01017.40
7.3.260.0070.01116.43
7.3.250.0090.00816.49
7.3.240.0070.01016.39
7.3.230.0140.00416.48
7.3.210.0180.00016.38
7.3.200.0030.01519.39
7.3.190.0060.01416.50
7.3.180.0090.00916.48
7.3.170.0120.00616.48
7.3.160.0110.00716.53
7.3.10.0070.00616.82
7.3.00.0060.00516.81
7.2.330.0140.00316.52
7.2.320.0110.00816.77
7.2.310.0180.00016.88
7.2.300.0060.01016.75
7.2.290.0060.01716.57
7.2.130.0040.01117.05
7.2.120.0090.00317.01
7.2.110.0080.00716.84
7.2.100.0020.01417.05
7.2.90.0050.00616.91
7.2.80.0070.01016.97
7.2.70.0040.00917.12
7.2.60.0030.01117.07
7.2.50.0080.00817.13
7.2.40.0080.00517.11
7.2.30.0060.00916.85
7.2.20.0050.01117.10
7.2.10.0080.00617.09
7.2.00.0050.00717.17
7.1.250.0020.01415.83
7.1.200.0090.00315.75
7.1.100.0000.01118.48
7.1.70.0060.00317.37
7.1.60.0090.01219.18
7.1.50.0030.02016.84
7.1.00.0000.08022.70
7.0.200.0000.00716.64
7.0.60.0270.08320.11
7.0.50.0070.08717.89
7.0.40.0030.04720.52
7.0.30.0300.07020.17
7.0.20.0300.04320.21
7.0.10.0100.08320.52
7.0.00.0100.08020.29
5.6.280.0000.07021.11
5.6.210.0130.07320.47
5.6.200.0070.04718.22
5.6.190.0030.04320.45
5.6.180.0670.03320.45
5.6.170.0170.04020.44
5.6.160.0030.08020.32
5.6.150.0070.06318.16
5.6.140.0070.04718.15
5.6.130.0030.04018.18
5.6.120.0100.03720.98
5.6.110.0030.07720.96
5.6.100.0170.07320.98
5.6.90.0030.05320.95
5.6.80.0100.07720.41
5.5.350.0100.03320.46
5.5.340.0100.03318.02
5.5.330.0100.07320.39
5.5.320.0300.05720.33
5.5.310.0230.04320.29
5.5.300.0170.07318.02
5.5.290.0070.05717.91
5.5.280.0000.04320.68
5.5.270.0130.06320.79
5.5.260.0170.07020.86
5.5.250.0030.04020.68
5.5.240.0130.08020.29
5.4.450.3530.04719.49
5.4.440.2800.05319.48
5.4.430.3730.03719.30
5.4.420.4270.04019.19
5.4.410.3500.04019.36
5.4.400.3300.04019.00
5.4.390.3170.03319.17
5.4.380.3500.03719.09
5.4.370.3500.03718.89
5.4.360.3570.03719.20
5.4.350.4230.04318.96
5.4.340.3700.03319.09
5.4.320.3830.04019.17
5.4.310.3770.03718.96
5.4.300.3630.03719.08
5.4.290.3900.04018.92
5.4.280.4130.03719.04
5.4.270.3870.03318.96
5.4.260.3770.03719.16
5.4.250.3570.03019.16
5.4.240.3630.03718.96
5.4.230.4770.04319.17
5.4.220.3970.04318.92
5.4.210.3870.03719.16
5.4.200.3700.04018.88
5.4.190.4430.03319.15
5.4.180.4270.05019.03
5.4.170.3900.03719.14
5.4.160.4100.04719.02
5.4.150.4200.03019.11
5.4.140.3700.03716.37
5.4.130.3700.03716.39
5.4.120.0000.04016.22
5.4.110.3930.04016.35
5.4.100.4300.04016.26
5.4.90.4430.04016.33
5.4.80.4700.03316.30
5.4.70.4100.03316.22

preferences:
36.75 ms | 401 KiB | 5 Q