3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(mb_strlen("système")); var_dump(ini_get("mbstring.internal_encoding"));

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)
8.3.40.0110.01118.54
8.3.30.0070.00718.84
8.3.20.0000.00720.21
8.3.10.0040.00421.95
8.3.00.0040.00417.78
8.2.170.0090.00622.96
8.2.160.0000.01420.57
8.2.150.0070.00024.18
8.2.140.0070.00024.66
8.2.130.0050.00326.16
8.2.120.0040.00421.01
8.2.110.0070.00322.08
8.2.100.0040.00717.66
8.2.90.0080.00018.83
8.2.80.0050.00317.97
8.2.70.0050.00317.38
8.2.60.0000.00717.91
8.2.50.0060.00318.07
8.2.40.0030.00618.22
8.2.30.0070.00018.03
8.2.20.0050.00317.47
8.2.10.0000.00717.90
8.2.00.0030.00517.60
8.1.270.0030.00623.83
8.1.260.0050.00226.35
8.1.250.0050.00228.09
8.1.240.0090.01323.91
8.1.230.0120.00019.09
8.1.220.0070.00417.74
8.1.210.0000.00918.77
8.1.200.0040.00417.22
8.1.190.0000.00817.00
8.1.180.0060.00318.10
8.1.170.0000.00818.61
8.1.160.0040.00421.84
8.1.150.0040.00418.78
8.1.140.0040.00417.25
8.1.130.0060.00017.75
8.1.120.0050.00217.33
8.1.110.0030.00317.20
8.1.100.0000.00717.35
8.1.90.0070.00017.20
8.1.80.0000.00717.21
8.1.70.0070.00017.30
8.1.60.0040.00417.54
8.1.50.0000.00817.46
8.1.40.0040.00417.49
8.1.30.0030.00617.48
8.1.20.0000.00817.48
8.1.10.0000.00717.32
8.1.00.0040.00417.34
8.0.300.0040.00420.75
8.0.290.0040.00416.58
8.0.280.0000.00718.28
8.0.270.0030.00317.08
8.0.260.0030.00517.24
8.0.250.0000.00716.79
8.0.240.0000.00716.77
8.0.230.0000.00716.86
8.0.220.0040.00416.79
8.0.210.0030.00316.86
8.0.200.0000.00616.87
8.0.190.0000.00716.86
8.0.180.0030.00516.82
8.0.170.0050.00216.79
8.0.160.0030.00316.80
8.0.150.0050.00216.81
8.0.140.0070.00016.80
8.0.130.0060.00013.24
8.0.120.0040.00416.67
8.0.110.0000.00816.73
8.0.100.0020.00516.84
8.0.90.0040.00416.71
8.0.80.0000.01416.84
8.0.70.0070.00016.81
8.0.60.0030.00516.68
8.0.50.0020.00516.75
8.0.30.0110.00816.88
8.0.20.0090.01017.40
8.0.10.0050.00316.81
8.0.00.0100.00916.72
7.4.330.0060.00015.00
7.4.320.0000.00616.50
7.4.300.0030.00316.41
7.4.290.0000.01116.37
7.4.280.0080.00016.36
7.4.270.0070.00016.34
7.4.260.0100.00016.45
7.4.250.0000.00716.33
7.4.240.0030.00316.48
7.4.230.0000.00716.29
7.4.220.0040.01416.41
7.4.210.0100.00716.30
7.4.200.0070.00016.44
7.4.160.0080.00816.22
7.4.150.0150.00317.40
7.4.140.0050.01217.86
7.4.130.0070.01116.35
7.4.120.0050.01516.39
7.4.110.0100.01016.36
7.4.100.0120.00616.50
7.4.90.0070.01016.46
7.4.80.0070.01119.39
7.4.70.0060.01016.46
7.4.60.0130.01016.30
7.4.50.0030.00516.13
7.4.40.0070.01016.39
7.4.30.0080.00716.45
7.4.00.0060.00914.79
7.3.330.0030.00313.06
7.3.320.0060.00013.11
7.3.310.0040.00416.12
7.3.300.0070.00016.16
7.3.290.0030.01116.13
7.3.280.0080.00916.04
7.3.270.0100.00717.40
7.3.260.0110.00716.17
7.3.250.0090.01116.15
7.3.240.0070.01016.36
7.3.230.0160.00016.43
7.3.210.0120.00416.17
7.3.200.0090.00619.39
7.3.190.0140.00716.23
7.3.180.0130.01316.15
7.3.170.0060.00916.27
7.3.160.0070.00716.20
7.3.120.0060.00614.62
7.2.330.0130.00516.25
7.2.320.0110.00516.49
7.2.310.0090.00916.51
7.2.300.0070.01116.43
7.2.290.0070.01116.36
7.2.60.0160.00816.71
7.2.00.0060.00619.22
7.1.200.0030.01015.50
7.1.100.0000.01117.77
7.1.70.0000.00716.98
7.1.60.0100.01419.25
7.1.50.0070.01316.68
7.1.00.0070.07322.54
7.0.200.0040.01116.52
7.0.140.0000.07721.99
7.0.60.0130.05719.85
7.0.50.0000.04317.90
7.0.40.0130.07320.23
7.0.30.0170.04720.01
7.0.20.0330.08020.09
7.0.10.0100.08720.09
7.0.00.0070.05320.20
5.6.280.0030.07020.89
5.6.210.0030.04320.66
5.6.200.0100.08318.21
5.6.190.0130.03720.61
5.6.180.0270.06320.57
5.6.170.0170.05320.41
5.6.160.0070.05320.41
5.6.150.0000.04318.16
5.6.140.0070.08018.08
5.6.130.0070.06318.18
5.6.120.0100.08321.13
5.6.110.0130.08320.96
5.6.100.0170.03021.11
5.6.90.0100.07320.99
5.6.80.0130.07320.37
5.5.350.0230.07320.31
5.5.340.0030.04017.96
5.5.330.0170.07320.37
5.5.320.0270.08320.25
5.5.310.0300.06720.20
5.5.300.0130.05017.98
5.5.290.0070.04017.98
5.5.280.0100.05320.97
5.5.270.0130.05020.75
5.5.260.0030.09320.78
5.5.250.0030.05720.54
5.5.240.0000.08020.15
5.4.450.0730.06019.49
5.4.440.0800.06319.13
5.4.430.0570.05719.62
5.4.420.0830.05019.46
5.4.410.0030.05718.97
5.4.400.0330.06018.72
5.4.390.0600.03318.68
5.4.380.0130.05718.52
5.4.370.0070.04018.68
5.4.360.0030.04318.64
5.4.350.0120.03611.97
5.4.340.0050.04211.97
5.4.320.0040.03812.45
5.4.310.0060.04112.45
5.4.300.0070.04012.45
5.4.290.0070.03712.45
5.4.280.0040.03812.35
5.4.270.0080.03512.35
5.4.260.0060.04712.35
5.4.250.0070.03812.35
5.4.240.0060.03712.35
5.4.230.0080.04012.34
5.4.220.0050.03612.34
5.4.210.0030.03812.34
5.4.200.0060.03712.34
5.4.190.0050.03612.34
5.4.180.0110.03112.33
5.4.170.0030.03912.35
5.4.160.0080.04112.34
5.4.150.0070.03612.34
5.4.140.0060.03812.02
5.4.130.0050.03612.01
5.4.120.0060.03611.97
5.4.110.0080.03411.96
5.4.100.0050.03711.96
5.4.90.0070.03911.96
5.4.80.0060.04111.96
5.4.70.0040.03711.96
5.4.60.0050.03511.96
5.4.50.0070.03411.96
5.4.40.0090.03311.95
5.4.30.0090.03511.95
5.4.20.0070.03411.95
5.4.10.0050.03611.95
5.4.00.0050.03711.43
5.3.290.0070.03912.80
5.3.280.0070.03812.71
5.3.270.0080.03612.72
5.3.260.0050.04312.71
5.3.250.0080.04112.72
5.3.240.0100.03612.72
5.3.230.0060.03712.71
5.3.220.0040.04012.68
5.3.210.0080.03712.68
5.3.200.0060.03612.68
5.3.190.0110.03312.68
5.3.180.0070.03612.68
5.3.170.0070.04212.67
5.3.160.0080.04312.67
5.3.150.0070.03712.68
5.3.140.0060.04012.66
5.3.130.0060.03912.66
5.3.120.0040.04312.66
5.3.110.0100.04512.66
5.3.100.0110.04212.12
5.3.90.0120.03212.08
5.3.80.0060.03612.07
5.3.70.0090.03512.07
5.3.60.0040.03912.07
5.3.50.0040.03712.00
5.3.40.0070.03612.00
5.3.30.0060.03411.94
5.3.20.0040.03711.71
5.3.10.0070.03411.69
5.3.00.0060.03611.67
5.2.170.0050.0329.18
5.2.160.0030.0319.18
5.2.150.0030.0329.18
5.2.140.0060.0299.18
5.2.130.0050.0339.13
5.2.120.0070.0399.14
5.2.110.0070.0369.14
5.2.100.0070.0369.13
5.2.90.0060.0299.14
5.2.80.0040.0329.13
5.2.70.0080.0289.13
5.2.60.0050.0309.09
5.2.50.0080.0289.05
5.2.40.0060.0289.03
5.2.30.0040.0319.00
5.2.20.0040.0348.99
5.2.10.0070.0308.92
5.2.00.0040.0298.77
5.1.60.0060.0238.06
5.1.50.0030.0278.06
5.1.40.0040.0268.04
5.1.30.0050.0308.39
5.1.20.0060.0258.40
5.1.10.0030.0268.13
5.1.00.0040.0258.14
5.0.50.0030.0226.61
5.0.40.0030.0206.47
5.0.30.0020.0336.28
5.0.20.0030.0216.25
5.0.10.0030.0216.23
5.0.00.0030.0326.23
4.4.90.0030.0154.78
4.4.80.0030.0154.75
4.4.70.0040.0144.76
4.4.60.0050.0184.76
4.4.50.0050.0144.77
4.4.40.0030.0264.71
4.4.30.0030.0154.76
4.4.20.0040.0154.85
4.4.10.0010.0184.85
4.4.00.0030.0254.76
4.3.110.0030.0154.67
4.3.100.0020.0214.66
4.3.90.0030.0154.63
4.3.80.0020.0294.59
4.3.70.0030.0144.63
4.3.60.0060.0174.62
4.3.50.0030.0224.62
4.3.40.0020.0254.54
4.3.30.0030.0153.27
4.3.20.0010.0173.25
4.3.10.0010.0173.21
4.3.00.0130.0207.21

preferences:
39.17 ms | 400 KiB | 5 Q