3v4l.org

run code in 300+ PHP versions simultaneously
<?php $characters = ["A", "a", 0x41, "Φ", "φ", "1"]; foreach ($characters as $character) { var_dump(IntlChar::tolower($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)
8.3.60.0140.00316.61
8.3.50.0110.00721.21
8.3.40.0070.00718.97
8.3.30.0030.01218.85
8.3.20.0040.01120.53
8.3.10.0040.00423.73
8.3.00.0000.00822.70
8.2.180.0120.00316.63
8.2.170.0120.00422.96
8.2.160.0070.00722.40
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0000.00826.16
8.2.120.0090.00017.63
8.2.110.0060.00320.68
8.2.100.0080.00417.75
8.2.90.0060.00319.39
8.2.80.0030.00617.97
8.2.70.0050.00317.75
8.2.60.0030.00518.18
8.2.50.0030.00518.07
8.2.40.0040.00421.37
8.2.30.0000.00719.91
8.2.20.0000.00717.92
8.2.10.0000.00818.23
8.2.00.0050.00218.23
8.1.280.0120.00625.92
8.1.270.0060.00320.57
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00624.17
8.1.230.0110.00017.61
8.1.220.0000.00817.79
8.1.210.0040.00418.77
8.1.200.0090.00017.60
8.1.190.0040.00417.24
8.1.180.0040.00418.10
8.1.170.0040.00418.77
8.1.160.0000.00822.10
8.1.150.0030.00618.99
8.1.140.0030.00517.54
8.1.130.0000.00717.88
8.1.120.0040.00417.46
8.1.110.0050.00317.61
8.1.100.0040.00417.47
8.1.90.0000.00717.46
8.1.80.0050.00317.57
8.1.70.0040.00417.60
8.1.60.0040.00417.71
8.1.50.0000.00817.65
8.1.40.0050.00317.49
8.1.30.0060.00317.85
8.1.20.0070.00017.79
8.1.10.0040.00417.58
8.1.00.0000.00817.57
8.0.300.0080.00018.77
8.0.290.0040.00416.88
8.0.280.0000.00718.69
8.0.270.0000.00817.45
8.0.260.0000.00617.42
8.0.250.0040.00417.07
8.0.240.0040.00417.15
8.0.230.0070.00017.04
8.0.220.0040.00417.11
8.0.210.0070.00017.01
8.0.200.0030.00317.02
8.0.190.0040.00417.08
8.0.180.0030.00716.98
8.0.170.0030.00616.92
8.0.160.0030.00317.00
8.0.150.0000.00716.99
8.0.140.0070.00016.84
8.0.130.0090.00013.30
8.0.120.0040.00416.89
8.0.110.0040.00416.95
8.0.100.0000.00716.95
8.0.90.0080.00017.10
8.0.80.0100.00616.92
8.0.70.0040.00417.03
8.0.60.0030.00517.01
8.0.50.0050.00316.99
8.0.30.0140.00817.07
8.0.20.0130.00817.40
8.0.10.0050.00316.95
8.0.00.0090.00916.92
7.4.330.0000.00515.20
7.4.320.0040.00416.55
7.4.300.0070.00016.72
7.4.290.0050.00216.72
7.4.280.0000.00716.63
7.4.270.0070.00016.62
7.4.260.0030.00316.68
7.4.250.0020.00516.70
7.4.240.0030.00416.65
7.4.230.0000.00716.61
7.4.220.0120.01216.79
7.4.210.0120.00816.75
7.4.200.0000.00816.53
7.4.160.0070.01016.34
7.4.150.0030.01417.40
7.4.140.0120.00717.86
7.4.130.0110.01116.56
7.4.120.0110.01016.66
7.4.110.0130.00416.66
7.4.100.0140.01116.48
7.4.90.0140.00716.50
7.4.80.0120.00819.39
7.4.70.0130.00316.75
7.4.60.0030.01216.59
7.4.50.0000.00516.42
7.4.40.0060.00916.51
7.4.30.0130.00316.45
7.4.00.0130.00315.03
7.3.330.0040.00413.11
7.3.320.0000.00613.27
7.3.310.0030.00316.43
7.3.300.0020.00516.47
7.3.290.0080.00816.34
7.3.280.0120.00416.48
7.3.270.0080.00817.40
7.3.260.0140.00316.53
7.3.250.0080.00916.43
7.3.240.0130.00316.39
7.3.230.0120.01216.74
7.3.210.0090.00916.65
7.3.200.0130.00419.39
7.3.190.0130.00316.54
7.3.180.0100.01216.58
7.3.170.0190.00016.27
7.3.160.0060.01316.36
7.3.10.0100.00616.70
7.3.00.0000.01116.84
7.2.330.0180.00016.55
7.2.320.0120.00916.49
7.2.310.0060.01016.74
7.2.300.0120.00416.79
7.2.290.0060.01016.55
7.2.130.0070.00716.91
7.2.120.0080.00816.78
7.2.110.0090.00617.21
7.2.100.0040.00717.06
7.2.90.0060.00917.08
7.2.80.0030.01017.27
7.2.70.0030.00716.90
7.2.60.0060.00916.78
7.2.50.0000.01416.88
7.2.40.0000.01316.70
7.2.30.0120.00017.03
7.2.20.0060.00617.09
7.2.10.0040.00717.20
7.2.00.0030.01018.21
7.1.250.0070.00716.09
7.1.200.0000.01315.60
7.1.100.0040.00918.28
7.1.70.0060.00617.31
7.1.60.0130.01019.12
7.1.50.0260.01335.07
7.1.00.0070.07322.64
7.0.200.0070.00716.97
7.0.60.0030.08019.91
7.0.50.0070.04017.76
7.0.40.0070.08720.36
7.0.30.0570.07020.46
7.0.20.0200.04020.40
7.0.10.0130.04720.32
7.0.00.0200.06320.13
5.6.280.0070.06020.86
5.6.210.0030.07320.59
5.6.200.0070.08318.12
5.6.190.0030.04320.56
5.6.180.3370.04020.61
5.6.170.0370.06020.45
5.6.160.0100.06320.46
5.6.150.0000.04318.08
5.6.140.0030.04318.18
5.6.130.0070.03718.21
5.6.120.0100.07721.00
5.6.110.0100.04720.98
5.6.100.0030.09321.11
5.6.90.0170.06721.13
5.6.80.0000.08320.37
5.6.70.4430.03720.36
5.5.350.0130.04720.43
5.5.340.0070.08317.98
5.5.330.0030.08720.13
5.5.320.0230.04320.32
5.5.310.0300.08020.27
5.5.300.0100.08318.00
5.5.290.0030.04018.02
5.5.280.0070.07020.75
5.5.270.0170.04320.76
5.5.260.0100.08020.84
5.5.250.0100.06020.61
5.5.240.0300.06720.14
5.4.450.0570.07719.41
5.4.440.0970.08319.27
5.4.430.0930.06719.61
5.4.420.0870.07319.52
5.4.410.0670.07719.37
5.4.400.0830.06319.15
5.4.390.0630.06319.09
5.4.380.0530.04319.08
5.4.370.0330.05318.78
5.4.360.0930.05019.13
5.4.350.0700.05319.21
5.4.340.0570.06318.80
5.4.320.0530.05719.18
5.4.310.0600.06019.29
5.4.300.0800.05718.77
5.4.290.0700.05718.80
5.4.280.0600.06019.15
5.4.270.0470.06318.96
5.4.260.0470.06019.09
5.4.250.0870.05318.77
5.4.240.0300.07319.20
5.4.230.0430.04319.16
5.4.220.0670.05718.81
5.4.210.0430.05319.09
5.4.200.0200.04316.75
5.4.190.0870.03719.09
5.4.180.0500.06318.94
5.4.170.1330.06718.95
5.4.160.0630.06318.93
5.4.150.0570.04718.93
5.4.140.0330.05016.36
5.4.130.0230.05316.21
5.4.120.0130.06016.32
5.4.110.0270.06316.38
5.4.100.0270.04716.48
5.4.90.0270.05016.50
5.4.80.0200.05316.45
5.4.70.0300.05016.57
5.4.60.0370.06316.36
5.4.50.0000.05316.36
5.4.40.0270.06316.38
5.4.30.0270.06316.31
5.4.20.0300.04316.43

preferences:
50.17 ms | 401 KiB | 5 Q