3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = "uhhh"; echo mb_detect_encoding($s, "UTF-8", true); ?>

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)
8.3.60.0040.01116.50
8.3.50.0090.01222.04
8.3.40.0180.00018.60
8.3.30.0040.01118.93
8.3.20.0070.00020.38
8.3.10.0000.00823.53
8.3.00.0060.00319.38
8.2.180.0090.00618.42
8.2.170.0090.00622.96
8.2.160.0070.00720.52
8.2.150.0040.00424.18
8.2.140.0030.00624.66
8.2.130.0040.00426.16
8.2.120.0040.00421.99
8.2.110.0030.00621.95
8.2.100.0080.00317.72
8.2.90.0040.00419.27
8.2.80.0000.00917.97
8.2.70.0030.00617.38
8.2.60.0050.00317.80
8.2.50.0050.00318.07
8.2.40.0040.00419.88
8.2.30.0040.00418.00
8.2.20.0040.00417.72
8.2.10.0050.00218.11
8.2.00.0000.01017.59
8.1.280.0100.01025.92
8.1.270.0060.00323.91
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0000.00923.79
8.1.230.0120.00019.07
8.1.220.0030.00617.74
8.1.210.0060.00318.77
8.1.200.0030.00617.00
8.1.190.0030.00617.10
8.1.180.0060.00318.10
8.1.170.0030.00618.20
8.1.160.0040.00422.04
8.1.150.0100.00018.69
8.1.140.0040.00417.48
8.1.130.0030.00317.82
8.1.120.0030.00517.46
8.1.110.0070.00317.41
8.1.100.0040.00417.49
8.1.90.0040.00417.48
8.1.80.0040.00417.49
8.1.70.0060.00017.42
8.1.60.0040.00417.48
8.1.50.0040.00417.55
8.1.40.0050.00317.50
8.1.30.0040.00417.63
8.1.20.0030.00517.60
8.1.10.0000.00717.61
8.1.00.0040.00417.44
8.0.300.0000.00718.83
8.0.290.0000.00817.18
8.0.280.0000.00818.41
8.0.270.0000.00817.22
8.0.260.0030.00317.23
8.0.250.0000.00617.07
8.0.240.0040.00416.93
8.0.230.0030.00316.84
8.0.220.0030.00516.79
8.0.210.0050.00316.77
8.0.200.0030.00316.82
8.0.190.0040.00416.88
8.0.180.0000.00816.95
8.0.170.0090.00016.81
8.0.160.0000.00716.84
8.0.150.0000.00716.87
8.0.140.0040.00416.74
8.0.130.0050.00213.31
8.0.120.0030.00616.89
8.0.110.0040.00416.83
8.0.100.0000.00816.70
8.0.90.0040.00416.88
8.0.80.0070.01016.89
8.0.70.0000.00716.71
8.0.60.0000.00716.77
8.0.50.0040.00416.75
8.0.30.0060.01517.09
8.0.20.0110.00817.40
8.0.10.0070.00016.73
8.0.00.0030.01416.73
7.4.330.0050.00015.00
7.4.320.0030.00316.45
7.4.300.0030.00316.41
7.4.290.0030.00316.46
7.4.280.0030.00416.63
7.4.270.0050.00316.60
7.4.260.0000.00816.62
7.4.250.0080.00016.49
7.4.240.0020.00516.54
7.4.230.0030.00316.47
7.4.220.0090.00916.54
7.4.210.0060.01116.55
7.4.200.0030.00316.69
7.4.190.0070.00016.48
7.4.160.0090.00616.54
7.4.150.0130.00517.40
7.4.140.0070.01017.86
7.4.130.0080.01116.47
7.4.120.0110.00516.56
7.4.110.0040.01416.60
7.4.100.0150.00716.49
7.4.90.0070.01316.39
7.4.80.0130.01019.39
7.4.70.0120.00416.60
7.4.60.0100.00616.48
7.4.50.0050.00316.57
7.4.40.0120.00616.38
7.4.30.0100.00516.61
7.4.00.0000.00815.16
7.3.330.0050.00212.91
7.3.320.0030.00313.12
7.3.310.0030.00616.10
7.3.300.0040.00416.15
7.3.290.0110.00416.20
7.3.280.0080.00816.24
7.3.270.0040.01417.40
7.3.260.0060.00916.25
7.3.250.0110.00716.49
7.3.240.0060.01016.38
7.3.230.0070.01016.39
7.3.210.0090.01216.25
7.3.200.0090.01119.39
7.3.190.0160.00716.19
7.3.180.0120.00316.29
7.3.170.0070.01416.41
7.3.160.0060.01216.27
7.3.120.0000.01414.95
7.2.330.0110.00716.28
7.2.320.0120.00616.21
7.2.310.0030.01316.31
7.2.300.0130.00716.36
7.2.290.0110.00616.58
7.2.00.0080.00419.44
7.1.100.0040.00818.20
7.1.70.0000.01016.97
7.1.60.0140.01019.46
7.1.50.1430.01114.85
7.1.00.0070.08722.34
7.0.200.0000.00716.41
7.0.140.0030.07322.12
7.0.100.0030.08719.89
7.0.90.0100.08319.89
7.0.80.0200.06019.95
7.0.70.0030.04319.85
7.0.60.0030.04319.93
7.0.50.0100.07720.34
7.0.40.0170.02719.95
7.0.30.0100.03320.14
7.0.20.0030.05020.11
7.0.10.0000.04320.12
7.0.00.0070.04320.04
5.6.280.0000.07721.01
5.6.250.0030.04020.74
5.6.240.0070.04020.66
5.6.230.0130.03320.54
5.6.220.0000.07020.65
5.6.210.0070.03020.64
5.6.200.0170.07320.95
5.6.190.0030.04321.11
5.6.180.0100.03721.10
5.6.170.0070.07320.95
5.6.160.0100.07320.95
5.6.150.0030.04721.07
5.6.140.0030.07721.02
5.6.130.0070.05721.00
5.6.120.0100.05321.10
5.6.110.0030.05021.05
5.6.100.0070.06021.14
5.6.90.0070.03720.91
5.6.80.0070.03720.51
5.6.70.0100.07720.48
5.6.60.0100.06020.38
5.6.50.0100.03020.37
5.6.40.0070.04720.30
5.6.30.0070.03720.39
5.6.20.0100.04720.51
5.6.10.0000.07320.45
5.6.00.0030.06020.29
5.5.380.0000.08020.43
5.5.370.0030.08320.34
5.5.360.0030.08020.40
5.5.350.0130.06320.43
5.5.340.0030.03720.75
5.5.330.0030.05720.85
5.5.320.0170.06320.83
5.5.310.0030.03720.86
5.5.300.0130.07020.91
5.5.290.0070.06020.92
5.5.280.0070.04320.92
5.5.270.0100.03720.75
5.5.260.0000.04720.84
5.5.250.0100.06320.73
5.5.240.0130.02720.17
5.5.230.0170.06720.25
5.5.220.0030.03720.24
5.5.210.0030.08320.20
5.5.200.0000.04020.20
5.5.190.0100.07320.23
5.5.180.0100.07320.22
5.5.160.0000.03720.23
5.5.150.0070.04020.21
5.5.140.0130.03020.25
5.5.130.0070.04320.11
5.5.120.0070.03320.11
5.5.110.0130.04019.94
5.5.100.0070.04020.09
5.5.90.0030.08319.93
5.5.80.0100.03319.94
5.5.70.0030.03720.16
5.5.60.0130.06020.05
5.5.50.0000.05019.96
5.5.40.0070.05020.08
5.5.30.0070.03020.13
5.5.20.0070.04720.12
5.5.10.0100.07719.95
5.5.00.0170.06019.98
5.4.450.0070.04319.30
5.4.440.0000.04019.27
5.4.430.0030.05719.34
5.4.420.0070.06319.38
5.4.410.0000.04319.34
5.4.400.0100.02718.79
5.4.390.0030.04019.04
5.4.380.0030.07718.94
5.4.370.0070.05019.04
5.4.360.0070.07018.93
5.4.350.0030.04719.04
5.4.340.0070.07718.94
5.4.320.0100.03718.81
5.4.310.0000.04019.20
5.4.300.0070.03319.06
5.4.290.0030.04019.06
5.4.280.0030.04019.09
5.4.270.0030.07719.05
5.4.260.0030.06019.04
5.4.250.0100.03018.96
5.4.240.0000.05018.89
5.4.230.0000.04019.11
5.4.220.0030.05719.02
5.4.210.0070.03719.14
5.4.200.0030.03719.07
5.4.190.0030.04318.95
5.4.180.0000.05018.97
5.4.170.0030.03718.96
5.4.160.0070.06019.04
5.4.150.0070.03319.00
5.4.140.0000.04016.24
5.4.130.0000.03716.36
5.4.120.0070.03016.34
5.4.110.0100.03016.29
5.4.100.0000.03316.25
5.4.90.0030.03716.33
5.4.80.0030.03316.36
5.4.70.0030.03016.42
5.4.60.0030.03016.34
5.4.50.0070.03016.30
5.4.40.0070.02716.23
5.4.30.0070.03316.18
5.4.20.0030.03016.34
5.4.10.0070.03016.40
5.4.00.0130.06015.81
5.3.290.0030.04014.65
5.3.280.0130.07314.58
5.3.270.0100.05714.60
5.3.260.0070.07314.45
5.3.250.0100.04014.61
5.3.240.0030.03314.59
5.3.230.0030.04014.41
5.3.220.0000.04314.43
5.3.210.0030.03714.57
5.3.200.0030.03314.56
5.3.190.0030.03014.52
5.3.180.0000.03314.52
5.3.170.0070.03314.52
5.3.160.0030.03314.52
5.3.150.0130.02714.51
5.3.140.0000.03714.54
5.3.130.0000.05314.38
5.3.120.0130.05314.48
5.3.110.0100.05714.41
5.3.100.0030.03713.89
5.3.90.0000.04313.88
5.3.80.0030.03713.80
5.3.70.0130.02713.96
5.3.60.0000.04013.98
5.3.50.0030.03313.95
5.3.40.0000.04013.79
5.3.30.0070.03313.68
5.3.20.0030.03013.64
5.3.10.0000.03313.50
5.3.00.0030.02713.57
5.2.170.0000.03311.02
5.2.160.0030.02710.97
5.2.150.0000.02711.22
5.2.140.0070.02711.09
5.2.130.0030.02310.93
5.2.120.0000.02710.94
5.2.110.0030.02711.11
5.2.100.0000.02711.11
5.2.90.0030.02711.14
5.2.80.0000.03711.13
5.2.70.0000.02710.91
5.2.60.0000.02711.11
5.2.50.0000.03010.86
5.2.40.0000.02710.82
5.2.30.0000.02710.96
5.2.20.0000.03010.91
5.2.10.0000.02710.77
5.2.00.0030.02310.62
5.1.60.0000.02010.06
5.1.50.0070.0179.86
5.1.40.0000.0209.95
5.1.30.0000.02710.28
5.1.20.0030.02710.41
5.1.10.0070.01710.06
5.1.00.0030.0209.94
5.0.50.0000.0209.73
5.0.40.0000.0179.73
5.0.30.0030.0279.73
5.0.20.0000.0179.73
5.0.10.0000.0179.73
5.0.00.0000.0279.73
4.4.90.0000.0139.73
4.4.80.0000.0139.73
4.4.70.0000.0139.73
4.4.60.0030.0139.73
4.4.50.0000.0139.73
4.4.40.0000.0209.73
4.4.30.0000.0139.73
4.4.20.0070.0109.73
4.4.10.0070.0079.73
4.4.00.0000.0209.73
4.3.110.0000.0179.73
4.3.100.0000.0139.73
4.3.90.0030.0109.73
4.3.80.0030.0209.73
4.3.70.0000.0139.73
4.3.60.0000.0139.73
4.3.50.0000.0139.73
4.3.40.0000.0209.73
4.3.30.0030.0109.73
4.3.20.0030.0109.73
4.3.10.0000.0139.73
4.3.00.0000.0139.73

preferences:
47.82 ms | 401 KiB | 5 Q