3v4l.org

run code in 300+ PHP versions simultaneously
<?php $source = mb_convert_encoding('test', "unicode-le", "utf-8"); $source = unpack('C*', $source); var_dump($source); $source = mb_convert_encoding('test', "unicode-be", "utf-8"); $source = unpack('C*', $source); var_dump($source);

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)
8.3.60.0080.01516.63
8.3.50.0070.01022.76
8.3.40.0110.00718.84
8.3.30.0070.00718.92
8.3.20.0040.00420.20
8.3.10.0030.00523.65
8.3.00.0050.00319.38
8.2.180.0120.00317.00
8.2.170.0030.01722.96
8.2.160.0100.00720.52
8.2.150.0070.00024.18
8.2.140.0040.00424.66
8.2.130.0060.00326.16
8.2.120.0040.00421.02
8.2.110.0100.00022.37
8.2.100.0130.00717.84
8.2.90.0060.00319.17
8.2.80.0050.00317.97
8.2.70.0000.00917.63
8.2.60.0000.00718.05
8.2.50.0030.00618.07
8.2.40.0040.00418.34
8.2.30.0050.00317.98
8.2.20.0060.00317.79
8.2.10.0000.00818.11
8.2.00.0040.00417.71
8.1.280.0100.00725.92
8.1.270.0080.00024.04
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0060.00324.11
8.1.230.0040.00717.89
8.1.220.0000.00917.74
8.1.210.0040.00418.77
8.1.200.0030.00617.50
8.1.190.0030.00617.34
8.1.180.0050.00218.10
8.1.170.0050.00318.57
8.1.160.0000.00721.96
8.1.150.0000.00718.80
8.1.140.0070.00017.37
8.1.130.0030.00317.86
8.1.120.0070.00017.36
8.1.110.0000.00717.34
8.1.100.0050.00217.42
8.1.90.0040.00417.36
8.1.80.0030.00517.43
8.1.70.0030.00317.44
8.1.60.0080.00017.55
8.1.50.0000.00817.53
8.1.40.0000.00917.55
8.1.30.0040.00417.49
8.1.20.0040.00417.54
8.1.10.0080.00017.59
8.1.00.0000.00817.63
8.0.300.0060.00318.77
8.0.290.0040.00416.75
8.0.280.0030.00318.41
8.0.270.0030.00317.18
8.0.260.0030.00317.25
8.0.250.0000.00717.03
8.0.240.0030.00617.02
8.0.230.0070.00016.84
8.0.220.0030.00316.84
8.0.210.0000.00816.93
8.0.200.0030.00316.91
8.0.190.0040.00416.89
8.0.180.0040.00416.98
8.0.170.0040.00417.01
8.0.160.0030.00316.92
8.0.150.0030.00516.89
8.0.140.0060.00316.83
8.0.130.0030.00313.38
8.0.120.0070.00016.93
8.0.110.0040.00416.93
8.0.100.0030.00316.93
8.0.90.0030.00516.83
8.0.80.0040.01516.91
8.0.70.0040.00416.91
8.0.60.0080.00017.00
8.0.50.0040.00416.76
8.0.30.0090.01317.20
8.0.20.0080.01417.40
8.0.10.0040.00416.95
8.0.00.0090.00816.73
7.4.330.0020.00215.09
7.4.320.0060.00016.46
7.4.300.0030.00616.43
7.4.290.0000.00716.37
7.4.280.0000.00816.55
7.4.270.0040.00416.56
7.4.260.0000.00716.48
7.4.250.0050.00316.43
7.4.240.0060.00216.51
7.4.230.0050.00316.37
7.4.220.0120.00616.49
7.4.210.0060.01016.54
7.4.200.0040.00416.41
7.4.160.0060.00916.52
7.4.150.0070.01117.40
7.4.140.0080.01017.86
7.4.130.0090.00916.53
7.4.120.0100.00716.44
7.4.110.0100.00716.52
7.4.100.0130.01016.60
7.4.90.0140.00316.54
7.4.80.0090.00919.39
7.4.70.0070.01016.52
7.4.60.0040.01216.31
7.4.50.0060.00016.36
7.4.40.0100.01016.23
7.4.30.0130.00616.47
7.4.00.0030.01414.73
7.3.330.0060.00013.09
7.3.320.0030.00313.13
7.3.310.0030.00316.09
7.3.300.0000.00716.15
7.3.290.0000.01416.25
7.3.280.0100.00816.21
7.3.270.0140.00417.40
7.3.260.0160.00416.29
7.3.250.0100.00716.44
7.3.240.0070.01416.15
7.3.230.0130.00316.39
7.3.210.0130.01016.48
7.3.200.0030.01719.39
7.3.190.0120.00416.43
7.3.180.0050.01116.54
7.3.170.0060.00916.28
7.3.160.0060.01216.42
7.2.330.0100.00716.39
7.2.320.0130.00416.70
7.2.310.0120.00316.73
7.2.300.0100.00616.59
7.2.290.0160.00616.62
7.2.00.0000.01219.27
7.1.100.0100.00318.29
7.1.70.0030.00616.87
7.1.60.0040.02219.40
7.1.50.0100.01016.56
7.1.00.0030.07722.51
7.0.200.0090.01416.41
7.0.140.0070.07321.96
7.0.60.0100.04720.05
7.0.50.0070.08017.83
7.0.40.0000.05020.12
7.0.30.0330.07020.02
7.0.20.0270.05320.16
7.0.10.0030.06320.16
7.0.00.0100.07320.20
5.6.280.0000.07721.06
5.6.210.0070.06020.71
5.6.200.0070.05018.18
5.6.190.0000.05020.40
5.6.180.3600.04720.49
5.6.170.0300.08020.41
5.6.160.0170.06320.32
5.6.150.0100.07718.11
5.6.140.0130.04718.17
5.6.130.0170.07018.08
5.6.120.0030.04021.13
5.6.110.0070.05720.98
5.6.100.0170.07721.03
5.6.90.0130.08021.03
5.6.80.0100.06320.39
5.6.70.4830.04320.38
5.5.350.0130.07720.39
5.5.340.0030.05017.98
5.5.330.0100.04320.16
5.5.320.0500.06320.30
5.5.310.0200.07020.07
5.5.300.0030.08717.95
5.5.290.0070.06017.90
5.5.280.0100.06320.95
5.5.270.0000.04720.86
5.5.260.0230.07020.86
5.5.250.0000.08720.49
5.5.240.0170.07720.35
5.4.450.0130.05319.23
5.4.440.0200.04019.39
5.4.430.0200.04719.38
5.4.420.0230.05019.21
5.4.410.0270.04319.12
5.4.400.0400.03318.81
5.4.390.0170.04018.89
5.4.380.0400.04318.71
5.4.370.0370.05718.50
5.4.360.0270.05318.59
5.4.350.0330.05018.77
5.4.340.0300.05018.73
5.4.320.0050.03812.45
5.4.310.0070.05312.45
5.4.300.0080.05012.45
5.4.290.0070.04512.45
5.4.280.0060.03512.35
5.4.270.0060.03512.34
5.4.260.0060.04512.34
5.4.250.0070.03912.34
5.4.240.0050.03712.35
5.4.230.0040.04012.34
5.4.220.0070.03812.34
5.4.210.0030.03812.34
5.4.200.0020.04112.34
5.4.190.0060.03612.33
5.4.180.0050.03712.33
5.4.170.0040.03812.35
5.4.160.0070.03512.34
5.4.150.0040.03712.34
5.4.140.0040.03912.02
5.4.130.0040.03712.01
5.4.120.0030.03811.97
5.4.110.0040.04011.96
5.4.100.0040.03811.96
5.4.90.0080.03811.96
5.4.80.0060.03611.96
5.4.70.0110.03711.96
5.4.60.0030.04611.96
5.4.50.0100.03511.96
5.4.40.0050.03411.95
5.4.30.0060.03511.94
5.4.20.0070.03311.95
5.4.10.0040.03511.95
5.4.00.0080.03311.44
5.3.290.0090.05012.80
5.3.280.0090.05112.71
5.3.270.0050.04312.72
5.3.260.0080.03812.72
5.3.250.0050.03912.72
5.3.240.0060.03712.71
5.3.230.0120.04112.71
5.3.220.0080.03612.68
5.3.210.0060.03912.68
5.3.200.0050.03712.68
5.3.190.0060.03712.68
5.3.180.0070.03912.67
5.3.170.0050.03812.67
5.3.160.0070.03512.67
5.3.150.0050.03712.67
5.3.140.0010.04312.66
5.3.130.0070.03912.66
5.3.120.0110.04012.66
5.3.110.0070.04212.65
5.3.100.0020.04012.12
5.3.90.0080.03912.08
5.3.80.0100.03512.07
5.3.70.0090.03312.08
5.3.60.0060.03512.07
5.3.50.0060.04212.00
5.3.40.0060.03512.00
5.3.30.0030.03711.94
5.3.20.0050.03511.72
5.3.10.0050.03511.69
5.3.00.0030.03911.68
5.2.170.0080.0339.18
5.2.160.0070.0309.18
5.2.150.0050.0369.18
5.2.140.0030.0319.17
5.2.130.0060.0289.14
5.2.120.0010.0329.14
5.2.110.0050.0339.14
5.2.100.0070.0379.14
5.2.90.0030.0339.14
5.2.80.0030.0329.13
5.2.70.0030.0329.13
5.2.60.0030.0319.09
5.2.50.0070.0279.06
5.2.40.0010.0329.03
5.2.30.0050.0299.01
5.2.20.0040.0299.00
5.2.10.0040.0298.93
5.2.00.0060.0278.79
5.1.60.0020.0258.08
5.1.50.0050.0248.07
5.1.40.0060.0268.05
5.1.30.0100.0208.40
5.1.20.0040.0318.42
5.1.10.0070.0248.15
5.1.00.0050.0258.15
5.0.50.0050.0196.62
5.0.40.0050.0186.48
5.0.30.0040.0316.30
5.0.20.0060.0166.27
5.0.10.0040.0196.25
5.0.00.0040.0306.24
4.4.90.0040.0144.78
4.4.80.0020.0154.75
4.4.70.0060.0124.75
4.4.60.0020.0164.75
4.4.50.0030.0154.77
4.4.40.0030.0254.71
4.4.30.0050.0134.76
4.4.20.0040.0144.84
4.4.10.0010.0174.85
4.4.00.0010.0274.75
4.3.110.0030.0154.67
4.3.100.0050.0194.66
4.3.90.0050.0204.63
4.3.80.0060.0214.59
4.3.70.0040.0134.63
4.3.60.0040.0134.62
4.3.50.0020.0164.62
4.3.40.0010.0254.54
4.3.30.0020.0163.29
4.3.20.0030.0163.27
4.3.10.0020.0163.23
4.3.00.0070.01315.65

preferences:
48.05 ms | 401 KiB | 5 Q