3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = "some\xc2\xa0 text"; var_dump(mb_convert_encoding($test, 'UTF-7', 'UTF-8')); var_dump(mb_convert_encoding($test, 'UCS-2', 'UTF-8'));

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)
8.3.60.0100.00318.30
8.3.50.0110.01022.12
8.3.40.0140.00718.54
8.3.30.0110.00418.93
8.3.20.0070.01020.16
8.3.10.0120.00621.95
8.3.00.0090.00019.15
8.2.180.0210.00016.63
8.2.170.0110.00422.96
8.2.160.0090.00622.21
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0080.00626.16
8.2.120.0050.00222.05
8.2.110.0060.00322.14
8.2.100.0070.00717.97
8.2.90.0000.00819.05
8.2.80.0000.00917.97
8.2.70.0040.00417.63
8.2.60.0000.00717.80
8.2.50.0000.01118.07
8.2.40.0030.00619.70
8.2.30.0030.00618.12
8.2.20.0040.00417.74
8.2.10.0030.00517.93
8.2.00.0000.00817.66
8.1.280.0110.00325.92
8.1.270.0050.00323.77
8.1.260.0000.00726.35
8.1.250.0000.00728.09
8.1.240.0090.00023.86
8.1.230.0110.00019.01
8.1.220.0090.00017.74
8.1.210.0040.00418.77
8.1.200.0040.00417.35
8.1.190.0030.00617.22
8.1.180.0040.00418.10
8.1.170.0080.00018.57
8.1.160.0030.00621.92
8.1.150.0050.00318.76
8.1.140.0000.00717.32
8.1.130.0000.00717.70
8.1.120.0070.00017.48
8.1.110.0080.00017.41
8.1.100.0040.00417.43
8.1.90.0000.00817.45
8.1.80.0030.00517.47
8.1.70.0050.00217.39
8.1.60.0030.00717.56
8.1.50.0040.00417.42
8.1.40.0020.00517.51
8.1.30.0030.00617.70
8.1.20.0040.00417.53
8.1.10.0070.00017.44
8.1.00.0040.00417.44
8.0.300.0050.00318.77
8.0.290.0070.00016.63
8.0.280.0030.00318.38
8.0.270.0000.00817.25
8.0.260.0040.00417.26
8.0.250.0070.00016.84
8.0.240.0030.00316.88
8.0.230.0030.00317.00
8.0.220.0000.00816.82
8.0.210.0030.00316.89
8.0.200.0030.00616.90
8.0.190.0030.00316.84
8.0.180.0040.00416.94
8.0.170.0050.00316.91
8.0.160.0040.00416.86
8.0.150.0070.00016.83
8.0.140.0050.00216.92
8.0.130.0000.00713.34
8.0.120.0040.00416.92
8.0.110.0000.00716.79
8.0.100.0040.00416.87
8.0.90.0000.00716.84
8.0.80.0040.01316.85
8.0.70.0000.00716.94
8.0.60.0070.00017.00
8.0.50.0040.00416.69
8.0.30.0110.01117.05
8.0.20.0120.00817.40
8.0.10.0070.00016.82
8.0.00.0100.00916.67
7.4.330.0050.00015.12
7.4.320.0000.00616.50
7.4.300.0060.00016.60
7.4.290.0040.00416.48
7.4.280.0040.00416.59
7.4.270.0030.00316.64
7.4.260.0050.00216.50
7.4.250.0030.00616.55
7.4.240.0030.00416.54
7.4.230.0000.00716.50
7.4.220.0150.00316.59
7.4.210.0070.00716.49
7.4.200.0070.00016.63
7.4.160.0030.01316.58
7.4.150.0110.00717.40
7.4.140.0120.00717.86
7.4.130.0130.00716.41
7.4.120.0090.00916.48
7.4.110.0110.00716.40
7.4.100.0100.00716.42
7.4.90.0080.00816.48
7.4.80.0160.00619.39
7.4.70.0080.00816.33
7.4.60.0140.00316.39
7.4.50.0020.00516.08
7.4.40.0100.00716.21
7.4.30.0040.01516.57
7.4.00.0040.00715.15
7.3.330.0000.00512.95
7.3.320.0030.00213.14
7.3.310.0000.00816.05
7.3.300.0060.00016.20
7.3.290.0070.00716.20
7.3.280.0120.00416.21
7.3.270.0090.00917.40
7.3.260.0100.00716.19
7.3.250.0110.00516.18
7.3.240.0110.00516.14
7.3.230.0100.00716.39
7.3.210.0070.01016.14
7.3.200.0150.00919.39
7.3.190.0040.01616.21
7.3.180.0080.00816.30
7.3.170.0070.01016.36
7.3.160.0070.00716.40
7.2.330.0060.01016.39
7.2.320.0120.00916.48
7.2.310.0060.01616.25
7.2.300.0100.00516.56
7.2.290.0140.00816.47
7.1.100.0040.00818.04
7.1.70.0070.01417.07
7.1.60.0140.01019.32
7.1.50.0070.01716.96
7.1.00.0070.08022.45
7.0.200.0050.00516.82
7.0.140.0000.07722.08
7.0.60.0100.08019.89
7.0.50.0100.05717.77
7.0.40.0100.07720.03
7.0.30.0200.04020.30
7.0.20.0230.04020.04
7.0.10.0070.04720.30
7.0.00.0130.07720.08
5.6.280.0070.07020.86
5.6.210.0130.06720.50
5.6.200.0100.07718.13
5.6.190.0070.06020.48
5.6.180.0230.04320.35
5.6.170.0400.04020.62
5.6.160.0000.04320.37
5.6.150.0100.08018.13
5.6.140.0070.04018.21
5.6.130.0030.04318.09
5.6.120.0100.03320.93
5.6.110.0070.04021.02
5.6.100.0070.06321.13
5.6.90.0130.07720.99
5.6.80.0000.07320.40
5.5.350.0100.04720.37
5.5.340.0070.05717.98
5.5.330.0000.05720.40
5.5.320.0300.05720.30
5.5.310.0200.08320.26
5.5.300.0030.04718.00
5.5.290.0030.05317.88
5.5.280.0170.07320.79
5.5.270.0030.04020.72
5.5.260.0130.07720.86
5.5.250.0100.08020.78
5.5.240.0230.07020.33
5.4.450.0430.04019.26
5.4.440.0330.04019.46
5.4.430.0200.04719.13
5.4.420.0700.00019.46
5.4.410.0630.00019.52
5.4.400.0630.00019.02
5.4.390.0630.00018.92
5.4.380.0630.00018.95
5.4.370.0600.00019.16
5.4.360.0600.00019.16
5.4.350.0630.00019.14
5.4.340.0100.03511.96
5.4.320.0050.04312.45
5.4.310.0080.03812.45
5.4.300.0060.04212.45
5.4.290.0080.04212.45
5.4.280.0100.04212.35
5.4.270.0090.03312.34
5.4.260.0080.03512.34
5.4.250.0080.03612.35
5.4.240.0050.03612.35
5.4.230.0050.03912.34
5.4.220.0060.03912.34
5.4.210.0070.03412.34
5.4.200.0080.04012.34
5.4.190.0070.03412.33
5.4.180.0040.03612.34
5.4.170.0020.03912.35
5.4.160.0060.03512.34
5.4.150.0070.04512.34
5.4.140.0060.03712.02
5.4.130.0040.03612.01
5.4.120.0040.03611.97
5.4.110.0050.04011.96
5.4.100.0040.03811.96
5.4.90.0090.03611.96
5.4.80.0060.03711.96
5.4.70.0070.03311.96
5.4.60.0040.03611.96
5.4.50.0070.03411.96
5.4.40.0060.03511.95
5.4.30.0060.03511.95
5.4.20.0070.03411.95
5.4.10.0070.03311.95
5.4.00.0060.03611.43
5.3.290.0050.04212.80
5.3.280.0060.03612.71
5.3.270.0040.03912.72
5.3.260.0090.03512.71
5.3.250.0040.03912.72
5.3.240.0070.03612.72
5.3.230.0100.03612.71
5.3.220.0040.03912.68
5.3.210.0050.04212.68
5.3.200.0140.04512.68
5.3.190.0080.03712.67
5.3.180.0060.04512.67
5.3.170.0040.04312.67
5.3.160.0090.03312.68
5.3.150.0050.03812.68
5.3.140.0080.03612.66
5.3.130.0060.04312.65
5.3.120.0050.04612.66
5.3.110.0070.03812.66
5.3.100.0070.04312.12
5.3.90.0080.04312.09
5.3.80.0080.03512.07
5.3.70.0030.04112.07
5.3.60.0080.03412.07
5.3.50.0100.03212.00
5.3.40.0060.03612.00
5.3.30.0090.03311.94
5.3.20.0070.03511.72
5.3.10.0060.03411.69
5.3.00.0050.03711.68
5.2.170.0020.0339.18
5.2.160.0050.0299.18
5.2.150.0040.0329.18
5.2.140.0060.0309.18
5.2.130.0040.0299.13
5.2.120.0070.0259.14
5.2.110.0060.0299.14
5.2.100.0040.0319.14
5.2.90.0030.0309.14
5.2.80.0030.0319.13
5.2.70.0030.0329.13
5.2.60.0040.0319.09
5.2.50.0080.0319.06
5.2.40.0050.0289.03
5.2.30.0030.0319.01
5.2.20.0040.0298.99
5.2.10.0020.0308.91
5.2.00.0060.0278.77
5.1.60.0040.0278.06
5.1.50.0060.0318.06
5.1.40.0040.0248.04
5.1.30.0030.0278.39
5.1.20.0030.0278.41
5.1.10.0020.0288.13
5.1.00.0030.0278.13
5.0.50.0080.0166.62
5.0.40.0050.0186.47
5.0.30.0060.0296.29
5.0.20.0000.0226.26
5.0.10.0050.0186.24
5.0.00.0040.0306.23
4.4.90.0050.0124.78
4.4.80.0020.0154.75
4.4.70.0020.0154.76
4.4.60.0020.0154.75
4.4.50.0040.0134.77
4.4.40.0000.0284.71
4.4.30.0020.0164.76
4.4.20.0030.0154.84
4.4.10.0030.0164.85
4.4.00.0010.0264.76
4.3.110.0040.0144.67
4.3.100.0040.0144.66
4.3.90.0010.0164.63
4.3.80.0020.0254.58
4.3.70.0030.0144.63
4.3.60.0040.0134.63
4.3.50.0040.0144.63
4.3.40.0030.0244.54
4.3.30.0020.0163.28
4.3.20.0030.0153.26
4.3.10.0010.0173.22
4.3.00.0030.02013.37

preferences:
42.32 ms | 401 KiB | 5 Q