3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(mb_list_encodings()); $source = mb_convert_encoding('test', " UTF-16BE", "utf-8"); $source = unpack('C*', $source); var_dump($source); $source = mb_convert_encoding('test', " UTF-16LE", "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)
8.3.60.0130.01018.55
8.3.50.0170.00722.92
8.3.40.0110.00419.02
8.3.30.0110.00419.00
8.3.20.0060.00320.22
8.3.10.0040.00423.71
8.3.00.0060.00319.36
8.2.180.0070.01016.75
8.2.170.0150.00322.96
8.2.160.0000.01420.62
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0060.00326.16
8.2.120.0080.00021.04
8.2.110.0060.00322.41
8.2.100.0070.00418.28
8.2.90.0070.00419.21
8.2.80.0090.00017.97
8.2.70.0000.00817.75
8.2.60.0040.00418.05
8.2.50.0060.00318.07
8.2.40.0060.00318.16
8.2.30.0040.00418.18
8.2.20.0000.00917.80
8.2.10.0030.00518.15
8.2.00.0030.00517.81
8.1.280.0110.00725.92
8.1.270.0030.00623.92
8.1.260.0030.00626.35
8.1.250.0080.00028.09
8.1.240.0030.00622.12
8.1.230.0000.01119.14
8.1.220.0000.00817.79
8.1.210.0000.00818.77
8.1.200.0030.00617.48
8.1.190.0030.00617.48
8.1.180.0000.00818.10
8.1.170.0040.00418.68
8.1.160.0050.00322.18
8.1.150.0040.00418.84
8.1.140.0000.00717.37
8.1.130.0000.00717.80
8.1.120.0040.00417.46
8.1.110.0000.00717.46
8.1.100.0000.00717.52
8.1.90.0040.00417.39
8.1.80.0040.00417.44
8.1.70.0000.00717.44
8.1.60.0030.00617.48
8.1.50.0000.00817.58
8.1.40.0030.00617.61
8.1.30.0050.00317.61
8.1.20.0000.00817.71
8.1.10.0050.00317.51
8.1.00.0040.00417.66
8.0.300.0030.00518.77
8.0.290.0000.00716.71
8.0.280.0060.00318.41
8.0.270.0030.00317.20
8.0.260.0090.00017.18
8.0.250.0030.00317.07
8.0.240.0040.00417.07
8.0.230.0040.00417.07
8.0.220.0040.00416.96
8.0.210.0030.00316.91
8.0.200.0000.00716.98
8.0.190.0090.00017.04
8.0.180.0000.00816.88
8.0.170.0000.00816.91
8.0.160.0040.00416.86
8.0.150.0050.00216.87
8.0.140.0000.00716.75
8.0.130.0030.00313.34
8.0.120.0000.00717.03
8.0.110.0040.00416.88
8.0.100.0000.00716.86
8.0.90.0070.00016.84
8.0.80.0120.00416.93
8.0.70.0040.00416.96
8.0.60.0030.00517.02
8.0.50.0050.00316.78
8.0.30.0120.01217.15
8.0.20.0120.01017.40
8.0.10.0050.00316.99
8.0.00.0120.00616.86
7.4.330.0050.00015.08
7.4.320.0000.00716.41
7.4.300.0090.00016.39
7.4.290.0000.00716.49
7.4.280.0020.00516.48
7.4.270.0000.00716.52
7.4.260.0030.00516.54
7.4.250.0040.00416.52
7.4.240.0070.00116.56
7.4.230.0030.00316.34
7.4.220.0220.00616.53
7.4.210.0130.00716.58
7.4.200.0000.00816.39
7.4.160.0120.01016.57
7.4.150.0030.01817.40
7.4.140.0160.00617.86
7.4.130.0090.01416.55
7.4.120.0150.00616.52
7.4.110.0090.01216.54
7.4.100.0160.00416.38
7.4.90.0060.01316.66
7.4.80.0110.00919.39
7.4.70.0110.00616.54
7.4.60.0110.01116.55
7.4.50.0040.00416.48
7.4.40.0140.00716.35
7.4.30.0130.00316.42
7.4.00.0030.00714.83
7.3.330.0030.00313.12
7.3.320.0050.00213.13
7.3.310.0000.00716.17
7.3.300.0040.00416.29
7.3.290.0090.00616.32
7.3.280.0070.01016.23
7.3.270.0170.00317.40
7.3.260.0090.01816.42
7.3.250.0110.00916.34
7.3.240.0120.01216.32
7.3.230.0100.01016.39
7.3.210.0130.00616.36
7.3.200.0100.01019.39
7.3.190.0160.00916.32
7.3.180.0040.01416.44
7.3.170.0170.00316.37
7.3.160.0100.00716.37
7.2.330.0110.00716.57
7.2.320.0130.00616.54
7.2.310.0070.01016.66
7.2.300.0070.01116.61
7.2.290.0060.01216.55
7.2.110.0240.01016.53
7.2.60.0140.00716.68
7.2.00.0040.01119.25
7.1.200.0100.00315.90
7.1.100.0030.00918.24
7.1.70.0080.00017.22
7.1.60.0100.01619.40
7.1.50.0030.01016.91
7.1.00.0100.07022.45
7.0.200.0030.00716.95
7.0.140.0000.07321.95
7.0.60.0130.08320.02
7.0.50.0100.08017.73
7.0.40.0000.06020.24
7.0.30.0330.07720.20
7.0.20.0430.06720.20
7.0.10.0130.08020.19
7.0.00.0070.08320.20
5.6.280.0030.07720.78
5.6.210.0070.08320.62
5.6.200.0070.04718.18
5.6.190.0030.08320.49
5.6.180.0400.06720.60
5.6.170.0330.07720.40
5.6.160.0130.07320.49
5.6.150.0100.08018.11
5.6.140.0100.08318.22
5.6.130.0070.04018.11
5.6.120.0130.07720.93
5.6.110.0100.08721.01
5.6.100.0070.08021.11
5.6.90.0030.04320.88
5.6.80.0030.04020.35
5.5.350.0300.07320.29
5.5.340.0130.07717.96
5.5.330.0170.08020.26
5.5.320.0170.04720.31
5.5.310.0200.04320.29
5.5.300.0070.03717.96
5.5.290.0070.08317.95
5.5.280.0030.08320.76
5.5.270.0070.03720.72
5.5.260.0030.04320.84
5.5.250.0270.07320.68
5.5.240.0200.07320.34
5.4.450.0130.04719.43
5.4.440.0070.05319.46
5.4.430.0530.04319.48
5.4.420.0600.03319.41
5.4.410.0130.03319.33
5.4.400.0300.03318.78
5.4.390.0200.05018.81
5.4.380.0400.08018.67
5.4.370.0370.05318.47
5.4.360.0400.04718.77
5.4.350.0300.06318.64
5.4.340.0300.05318.58
5.4.320.0050.04112.46
5.4.310.0040.04412.46
5.4.300.0090.03512.46
5.4.290.0070.03912.46
5.4.280.0070.03612.36
5.4.270.0080.03912.36
5.4.260.0060.04012.36
5.4.250.0060.03912.36
5.4.240.0040.03812.36
5.4.230.0050.04012.35
5.4.220.0090.04112.35
5.4.210.0050.04912.35
5.4.200.0070.03812.35
5.4.190.0070.03612.35
5.4.180.0050.03812.34
5.4.170.0070.03612.36
5.4.160.0040.03912.36
5.4.150.0060.03712.35
5.4.140.0080.04212.03
5.4.130.0080.03412.02
5.4.120.0070.04211.98
5.4.110.0060.03711.98
5.4.100.0060.03511.98
5.4.90.0050.03911.97
5.4.80.0040.04011.98
5.4.70.0090.03511.97
5.4.60.0060.03611.97
5.4.50.0090.03411.97
5.4.40.0070.03511.96
5.4.30.0100.03611.96
5.4.20.0040.04011.96
5.4.10.0050.03611.96
5.4.00.0050.03811.45
5.3.290.0070.03912.80
5.3.280.0080.03812.71
5.3.270.0090.03712.73
5.3.260.0160.03312.72
5.3.250.0070.03912.71
5.3.240.0090.03512.72
5.3.230.0090.03612.71
5.3.220.0060.04012.68
5.3.210.0070.03712.68
5.3.200.0070.03712.68
5.3.190.0100.03512.68
5.3.180.0120.03512.67
5.3.170.0080.03512.67
5.3.160.0090.03412.67
5.3.150.0060.04112.67
5.3.140.0050.03712.66
5.3.130.0080.03912.66
5.3.120.0070.03812.66
5.3.110.0080.03712.66
5.3.100.0090.03612.12
5.3.90.0080.04012.09
5.3.80.0040.04412.08
5.3.70.0060.03812.07
5.3.60.0030.03912.07
5.3.50.0060.03812.00
5.3.40.0070.03612.00
5.3.30.0070.04011.95
5.3.20.0100.03111.74
5.3.10.0110.03211.70
5.3.00.0090.03411.69
5.2.170.0050.0339.19
5.2.160.0050.0299.18
5.2.150.0050.0329.18
5.2.140.0050.0319.18
5.2.130.0070.0269.14
5.2.120.0050.0289.14
5.2.110.0100.0249.15
5.2.100.0040.0309.14
5.2.90.0060.0299.15
5.2.80.0050.0329.14
5.2.70.0070.0299.14
5.2.60.0040.0409.09
5.2.50.0060.0329.06
5.2.40.0070.0279.04
5.2.30.0080.0299.02
5.2.20.0060.0299.01
5.2.10.0070.0328.94
5.2.00.0060.0348.79
5.1.60.0040.0278.09
5.1.50.0070.0338.09
5.1.40.0080.0268.06
5.1.30.0060.0268.41
5.1.20.0040.0288.43
5.1.10.0070.0268.16
5.1.00.0060.0248.16
5.0.50.0070.0246.64
5.0.40.0030.0246.50
5.0.30.0020.0356.31
5.0.20.0040.0216.28
5.0.10.0030.0206.26
5.0.00.0040.0316.25
4.4.90.0040.0144.78
4.4.80.0010.0174.75
4.4.70.0020.0164.76
4.4.60.0030.0224.76
4.4.50.0030.0154.77
4.4.40.0030.0254.71
4.4.30.0030.0164.76
4.4.20.0030.0154.84
4.4.10.0020.0174.85
4.4.00.0030.0264.76
4.3.110.0030.0204.67
4.3.100.0050.0134.66
4.3.90.0020.0164.63
4.3.80.0020.0254.58
4.3.70.0020.0154.63
4.3.60.0050.0134.62
4.3.50.0020.0174.63
4.3.40.0030.0314.53
4.3.30.0020.0163.28
4.3.20.0020.0163.25
4.3.10.0010.0163.21
4.3.00.0070.02015.65

preferences:
39.56 ms | 401 KiB | 5 Q