3v4l.org

run code in 300+ PHP versions simultaneously
<?php $char = '£»øabc'; echo mb_detect_encoding($char).'!'; $char = mb_convert_encoding($char, "Windows-1252", "UTF-8"); echo mb_detect_encoding($char).'!';

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)
8.3.40.0150.00418.80
8.3.30.0100.01018.88
8.3.20.0150.00420.36
8.3.10.0140.00720.36
8.3.00.0070.01119.38
8.2.170.0110.00322.96
8.2.160.0070.01420.38
8.2.150.0110.00724.18
8.2.140.0130.00624.66
8.2.130.0070.01126.16
8.2.120.0130.00721.11
8.2.110.0050.00520.48
8.2.100.0120.00018.28
8.2.90.0000.00719.47
8.2.80.0050.00317.97
8.2.70.0080.00017.88
8.2.60.0000.00818.05
8.2.50.0040.00418.07
8.2.40.0090.00020.01
8.2.30.0030.00519.47
8.2.20.0000.00817.88
8.2.10.0070.00018.41
8.2.00.0040.00417.80
8.1.270.0160.00423.69
8.1.260.0140.00426.35
8.1.250.0070.01128.09
8.1.240.0060.00322.12
8.1.230.0040.00819.21
8.1.220.0000.00817.78
8.1.210.0040.00418.77
8.1.200.0030.00617.38
8.1.190.0040.00417.38
8.1.180.0040.00418.10
8.1.170.0000.00818.84
8.1.160.0000.00822.20
8.1.150.0030.00519.11
8.1.140.0040.00417.60
8.1.130.0030.00317.81
8.1.120.0040.00417.68
8.1.110.0000.00717.68
8.1.100.0000.00717.70
8.1.90.0000.01017.66
8.1.80.0020.00517.68
8.1.70.0040.00417.61
8.1.60.0040.00717.78
8.1.50.0050.00317.70
8.1.40.0080.00017.73
8.1.30.0000.00817.76
8.1.20.0040.00417.66
8.1.10.0040.00417.57
8.1.00.0050.00317.69
8.0.300.0000.00918.77
8.0.290.0030.00616.75
8.0.280.0030.00718.55
8.0.270.0080.00417.29
8.0.260.0000.00617.39
8.0.250.0060.00017.14
8.0.240.0040.00416.99
8.0.230.0000.00717.09
8.0.220.0040.00417.04
8.0.210.0040.00416.98
8.0.200.0040.00417.05
8.0.190.0000.00716.91
8.0.180.0000.00716.98
8.0.170.0040.00416.95
8.0.160.0040.00416.95
8.0.150.0020.00516.89
8.0.140.0040.00416.98
8.0.130.0000.00613.44
8.0.120.0000.00816.94
8.0.110.0040.00417.04
8.0.100.0050.00316.87
8.0.90.0000.00716.84
8.0.80.0100.00716.94
8.0.70.0000.00716.93
8.0.60.0000.00816.82
8.0.50.0050.00316.94
8.0.30.0150.00817.23
8.0.20.0080.01617.40
8.0.10.0070.00016.88
8.0.00.0150.00616.89
7.4.330.0030.00315.16
7.4.320.0070.00016.66
7.4.300.0000.00616.57
7.4.290.0060.00016.58
7.4.280.0030.00316.47
7.4.270.0000.00716.67
7.4.260.0050.00316.69
7.4.250.0000.00816.52
7.4.240.0050.00216.67
7.4.230.0040.00416.57
7.4.220.0140.00316.77
7.4.210.0040.01116.44
7.4.200.0000.00716.73
7.4.160.0150.00316.57
7.4.150.0100.00717.40
7.4.140.0130.00817.86
7.4.130.0080.01016.61
7.4.120.0120.00516.58
7.4.110.0090.00916.62
7.4.100.0080.01116.50
7.4.90.0070.01316.42
7.4.80.0090.00919.39
7.4.70.0120.00416.56
7.4.60.0100.01316.66
7.4.50.0050.00316.63
7.4.40.0080.01116.63
7.4.30.0090.00916.43
7.4.00.0050.01114.89
7.3.330.0030.00313.07
7.3.320.0040.00213.23
7.3.310.0040.00416.41
7.3.300.0060.00016.34
7.3.290.0070.00716.36
7.3.280.0050.01316.32
7.3.270.0100.00717.40
7.3.260.0110.00716.59
7.3.250.0100.00816.44
7.3.240.0080.00816.60
7.3.230.0110.00616.64
7.3.210.0100.00716.30
7.3.200.0060.00916.50
7.3.190.0130.00316.42
7.3.180.0080.00816.63
7.3.170.0100.01016.27
7.3.160.0100.00616.56
7.3.120.0030.01414.92
7.3.110.0080.01014.82
7.3.100.0070.00814.86
7.3.90.0070.01014.97
7.3.80.0130.00215.01
7.3.70.0060.00814.78
7.3.60.0030.01114.86
7.3.50.0050.00914.89
7.3.40.0060.00414.72
7.3.30.0080.00514.96
7.3.20.0050.01016.72
7.3.10.0070.00616.66
7.3.00.0070.00816.60
7.2.330.0100.00716.50
7.2.320.0060.01216.60
7.2.310.0060.01316.50
7.2.300.0100.01316.68
7.2.290.0040.01316.90
7.2.250.0100.01015.19
7.2.240.0100.00615.06
7.2.230.0080.00815.01
7.2.220.0070.00515.07
7.2.210.0060.00515.01
7.2.200.0050.00714.91
7.2.190.0050.01015.02
7.2.180.0030.01014.98
7.2.170.0000.01715.02
7.2.130.0090.00916.94
7.2.120.0110.01016.83
7.2.110.0100.00916.76
7.2.100.0110.00916.74
7.2.90.0160.01016.69
7.2.80.0100.01216.77
7.2.70.0080.01316.62
7.2.60.0090.00916.89
7.2.50.0080.01116.87
7.2.40.0140.00316.84
7.2.30.0120.00616.68
7.2.20.0060.01216.75
7.2.10.0120.01116.70
7.2.00.0060.01017.80
7.1.330.0050.01015.87
7.1.320.0030.00615.93
7.1.310.0070.00715.95
7.1.300.0090.00515.93
7.1.290.0050.00915.84
7.1.280.0060.00515.85
7.1.270.0050.00615.84
7.1.260.0060.00416.00
7.1.250.0090.00815.80
7.1.70.0000.00717.19
7.1.60.0170.00719.61
7.1.50.0100.02016.93
7.1.00.0100.07022.30
7.0.200.0030.00716.91
7.0.140.0070.07022.04
7.0.60.0100.08020.02
7.0.50.0030.08317.90
7.0.40.0030.07320.35
7.0.30.0430.08020.13
7.0.20.0300.05720.33
7.0.10.0170.07720.20
7.0.00.0070.05320.45
5.6.280.0000.07720.77
5.6.210.0070.08020.54
5.6.200.0000.07318.11
5.6.190.0100.06720.39
5.6.180.0500.06320.60
5.6.170.0330.04020.48
5.6.160.0130.08320.41
5.6.150.0070.07318.11
5.6.140.0130.08018.21
5.6.130.0000.06318.21
5.6.120.0130.03720.91
5.6.110.0000.04320.88
5.6.100.0130.08020.98
5.6.90.0100.08021.12
5.6.80.0070.08320.28
5.5.350.0230.07720.45
5.5.340.0070.04018.01
5.5.330.0100.08020.06
5.5.320.0200.05020.41
5.5.310.0200.03720.20
5.5.300.0100.06318.01
5.5.290.0100.06317.96
5.5.280.0100.08020.77
5.5.270.0130.07020.74
5.5.260.0130.07320.77
5.5.250.0000.04320.49
5.5.240.0230.04720.06
5.4.450.0330.04319.41
5.4.440.0370.04019.57
5.4.430.0300.05019.54
5.4.420.0330.04019.39
5.4.410.0900.03719.29
5.4.400.0370.02718.93
5.4.390.0200.05319.24
5.4.380.0370.05318.57
5.4.370.0300.06718.45
5.4.360.0200.05318.46
5.4.350.0200.05018.64
5.4.340.0300.05018.48
5.4.320.0080.04112.45
5.4.310.0070.04712.45
5.4.300.0040.03712.45
5.4.290.0070.04312.45
5.4.280.0050.03712.34
5.4.270.0070.03512.35
5.4.260.0090.04212.34
5.4.250.0040.04812.34
5.4.240.0070.04112.34
5.4.230.0070.03712.34
5.4.220.0050.04012.34
5.4.210.0090.03612.34
5.4.200.0070.03912.34
5.4.190.0050.04212.34
5.4.180.0070.04512.33
5.4.170.0090.04112.34
5.4.160.0100.04312.34
5.4.150.0060.03412.34
5.4.140.0130.04012.02
5.4.130.0120.04012.01
5.4.120.0070.03611.96
5.4.110.0090.03811.96
5.4.100.0090.03211.96
5.4.90.0050.03911.97
5.4.80.0090.04311.96
5.4.70.0080.04511.96
5.4.60.0080.04011.96
5.4.50.0050.04211.96
5.4.40.0080.03611.95
5.4.30.0110.03611.95
5.4.20.0060.03911.95
5.4.10.0090.03511.95
5.4.00.0060.03511.43
5.3.290.0080.04712.80
5.3.280.0080.04912.71
5.3.270.0090.04212.72
5.3.260.0050.04012.72
5.3.250.0080.03412.72
5.3.240.0100.03812.72
5.3.230.0110.04012.71
5.3.220.0050.03912.68
5.3.210.0070.05212.68
5.3.200.0070.04112.68
5.3.190.0080.03612.68
5.3.180.0070.04012.67
5.3.170.0070.03612.66
5.3.160.0040.04412.67
5.3.150.0100.04312.68
5.3.140.0070.03612.66
5.3.130.0110.04012.66
5.3.120.0080.04612.66
5.3.110.0090.04612.66
5.3.100.0050.05412.11
5.3.90.0060.04412.09
5.3.80.0050.03612.07
5.3.70.0070.03612.07
5.3.60.0070.04112.07
5.3.50.0100.03412.00
5.3.40.0060.03812.00
5.3.30.0080.04111.95
5.3.20.0070.03911.72
5.3.10.0090.03611.69
5.3.00.0070.03911.67
5.2.170.0090.0319.18
5.2.160.0050.0379.18
5.2.150.0030.0339.18
5.2.140.0050.0319.17
5.2.130.0090.0319.14
5.2.120.0050.0359.13
5.2.110.0060.0349.14
5.2.100.0100.0289.14
5.2.90.0050.0379.14
5.2.80.0100.0319.13
5.2.70.0080.0329.13
5.2.60.0060.0359.09
5.2.50.0060.0369.05
5.2.40.0070.0309.03
5.2.30.0090.0359.01
5.2.20.0060.0338.99
5.2.10.0040.0328.91
5.2.00.0060.0288.78
5.1.60.0100.0278.06
5.1.50.0070.0228.05
5.1.40.0100.0258.04
5.1.30.0020.0338.39
5.1.20.0050.0298.41
5.1.10.0090.0268.14
5.1.00.0060.0258.13
5.0.50.0070.0216.61
5.0.40.0070.0226.47
5.0.30.0030.0386.29
5.0.20.0050.0226.25
5.0.10.0020.0216.23
5.0.00.0030.0306.22
4.4.90.0030.0154.78
4.4.80.0010.0174.75
4.4.70.0020.0164.75
4.4.60.0000.0184.75
4.4.50.0010.0184.77
4.4.40.0020.0304.71
4.4.30.0040.0224.76
4.4.20.0040.0184.84
4.4.10.0040.0254.85
4.4.00.0030.0314.75
4.3.110.0030.0214.66
4.3.100.0060.0224.66
4.3.90.0010.0234.63
4.3.80.0020.0254.58
4.3.70.0020.0164.63
4.3.60.0060.0134.63
4.3.50.0050.0154.63
4.3.40.0020.0264.54
4.3.30.0020.0223.29
4.3.20.0030.0153.25
4.3.10.0030.0143.21
4.3.00.0030.01318.16

preferences:
38.71 ms | 400 KiB | 5 Q