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)
8.3.60.0030.01018.31
8.3.50.0120.00822.04
8.3.40.0080.00818.76
8.3.30.0110.00419.10
8.3.20.0170.00020.28
8.3.10.0000.00821.81
8.3.00.0000.00919.25
8.2.180.0030.01816.50
8.2.170.0140.00722.96
8.2.160.0100.00719.26
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0050.00322.24
8.2.110.0170.00320.47
8.2.100.0090.00318.09
8.2.90.0050.00319.03
8.2.80.0040.00417.97
8.2.70.0030.00617.50
8.2.60.0040.00817.68
8.2.50.0030.00618.07
8.2.40.0030.00619.70
8.2.30.0000.00817.93
8.2.20.0040.00417.79
8.2.10.0050.00317.93
8.2.00.0030.00617.56
8.1.280.0090.00625.92
8.1.270.0040.00423.91
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0090.00023.96
8.1.230.0080.00319.09
8.1.220.0080.00017.74
8.1.210.0000.00718.77
8.1.200.0030.00617.36
8.1.190.0040.00417.22
8.1.180.0080.00018.10
8.1.170.0050.00318.50
8.1.160.0000.00721.88
8.1.150.0000.01118.89
8.1.140.0040.00417.29
8.1.130.0030.00317.82
8.1.120.0040.00417.49
8.1.110.0040.00417.44
8.1.100.0030.00317.48
8.1.90.0040.00417.49
8.1.80.0040.00417.44
8.1.70.0070.00017.39
8.1.60.0000.00817.63
8.1.50.0000.00817.45
8.1.40.0040.00417.37
8.1.30.0050.00517.49
8.1.20.0000.00817.58
8.1.10.0000.00717.43
8.1.00.0040.00417.48
8.0.300.0000.00718.77
8.0.290.0000.00716.63
8.0.280.0030.00518.44
8.0.270.0030.00317.25
8.0.260.0090.00017.25
8.0.250.0040.00416.96
8.0.240.0000.00716.96
8.0.230.0000.00616.91
8.0.220.0030.00316.92
8.0.210.0000.00716.90
8.0.200.0030.00516.90
8.0.190.0040.00416.88
8.0.180.0080.00016.92
8.0.170.0040.00416.80
8.0.160.0000.00716.82
8.0.150.0050.00316.81
8.0.140.0070.00016.79
8.0.130.0030.00313.36
8.0.120.0040.00416.89
8.0.110.0070.00016.86
8.0.100.0050.00316.91
8.0.90.0080.00016.82
8.0.80.0080.00816.85
8.0.70.0070.00017.00
8.0.60.0000.00816.79
8.0.50.0000.00816.95
8.0.30.0130.00817.17
8.0.20.0110.00917.40
8.0.10.0040.00416.83
8.0.00.0100.00816.72
7.4.330.0030.00315.09
7.4.320.0060.00016.64
7.4.300.0000.00716.50
7.4.290.0070.00016.40
7.4.280.0050.00316.62
7.4.270.0030.00316.44
7.4.260.0040.00316.48
7.4.250.0070.00016.46
7.4.240.0030.00316.52
7.4.230.0080.00016.66
7.4.220.0110.00716.48
7.4.210.0030.01016.62
7.4.200.0000.00716.70
7.4.160.0110.00816.49
7.4.150.0230.00017.40
7.4.140.0150.00717.86
7.4.130.0120.00416.43
7.4.120.0050.01116.43
7.4.110.0060.01216.46
7.4.100.0070.01016.56
7.4.90.0090.00916.54
7.4.80.0070.01019.39
7.4.70.0060.00916.31
7.4.60.0080.00816.38
7.4.50.0020.00216.54
7.4.40.0090.00616.41
7.4.30.0080.00916.42
7.4.00.0070.00714.94
7.3.330.0000.00513.19
7.3.320.0060.00013.13
7.3.310.0050.00216.23
7.3.300.0030.00316.23
7.3.290.0100.00316.18
7.3.280.0040.01116.22
7.3.270.0130.01017.40
7.3.260.0080.00816.46
7.3.250.0080.00916.26
7.3.240.0060.01016.21
7.3.230.0140.00416.51
7.3.210.0130.00316.55
7.3.200.0190.00319.39
7.3.190.0100.00716.17
7.3.180.0090.00616.49
7.3.170.0030.01316.45
7.3.160.0070.00716.27
7.2.330.0070.01016.40
7.2.320.0100.00716.20
7.2.310.0090.00816.29
7.2.300.0060.01016.37
7.2.290.0000.02116.43
7.2.00.0060.00919.25
7.1.100.0000.00918.26
7.1.70.0060.00617.09
7.1.60.0030.02019.32
7.1.50.0060.01616.89
7.1.00.0100.06722.36
7.0.200.0040.01416.81
7.0.140.0030.07322.09
7.0.60.0030.04319.77
7.0.50.0100.05317.85
7.0.40.0070.08720.42
7.0.30.0330.08020.17
7.0.20.0230.08320.13
7.0.10.0270.07720.18
7.0.00.0030.05720.08
5.6.280.0100.06321.14
5.6.210.0000.04320.62
5.6.200.0000.09318.17
5.6.190.0100.08720.64
5.6.180.0200.04020.40
5.6.170.0170.04720.45
5.6.160.0100.08020.50
5.6.150.0030.04018.12
5.6.140.0100.04318.16
5.6.130.0100.07718.18
5.6.120.0030.06021.14
5.6.110.0100.07721.10
5.6.100.0070.08320.89
5.6.90.0200.07020.97
5.6.80.0100.04720.36
5.6.70.4100.03720.49
5.5.350.0130.07320.34
5.5.340.0000.04018.02
5.5.330.0100.03720.23
5.5.320.0200.04320.26
5.5.310.0200.05020.27
5.5.300.0030.04317.94
5.5.290.0100.03318.01
5.5.280.0070.05020.84
5.5.270.0170.04020.83
5.5.260.0270.06320.88
5.5.250.0100.07320.68
5.5.240.0300.06720.11
5.4.450.1130.04319.43
5.4.440.0330.04019.58
5.4.430.0230.04319.56
5.4.420.0630.00019.45
5.4.410.0630.00019.38
5.4.400.0630.00019.19
5.4.390.0630.00019.16
5.4.380.0630.00019.16
5.4.370.0600.00019.11
5.4.360.0800.00019.00
5.4.350.0630.00019.16
5.4.340.0050.03711.97
5.4.320.0050.03812.45
5.4.310.0080.03712.45
5.4.300.0080.03512.45
5.4.290.0070.03812.45
5.4.280.0060.03612.35
5.4.270.0040.03812.34
5.4.260.0080.04012.34
5.4.250.0030.04212.35
5.4.240.0070.04212.34
5.4.230.0060.04412.34
5.4.220.0060.03912.34
5.4.210.0060.03712.34
5.4.200.0070.03712.34
5.4.190.0050.04012.34
5.4.180.0070.04912.34
5.4.170.0090.04212.34
5.4.160.0040.03712.34
5.4.150.0060.03512.34
5.4.140.0030.04012.02
5.4.130.0060.03612.01
5.4.120.0090.03511.97
5.4.110.0090.03311.96
5.4.100.0080.03511.96
5.4.90.0040.03911.96
5.4.80.0050.03911.96
5.4.70.0050.03411.96
5.4.60.0050.04711.96
5.4.50.0050.03511.96
5.4.40.0070.03311.95
5.4.30.0040.03711.95
5.4.20.0080.03311.95
5.4.10.0090.03211.95
5.4.00.0050.03711.44
5.3.290.0080.03712.80
5.3.280.0030.04012.71
5.3.270.0050.04012.72
5.3.260.0060.05012.72
5.3.250.0070.03712.71
5.3.240.0090.03612.71
5.3.230.0060.03812.71
5.3.220.0050.04412.68
5.3.210.0050.03912.68
5.3.200.0040.03812.68
5.3.190.0070.03712.68
5.3.180.0080.03512.68
5.3.170.0080.03512.67
5.3.160.0040.04112.67
5.3.150.0080.04712.67
5.3.140.0070.03612.66
5.3.130.0050.04012.66
5.3.120.0030.04212.66
5.3.110.0040.04312.65
5.3.100.0050.03812.12
5.3.90.0030.03912.08
5.3.80.0040.03712.08
5.3.70.0050.03812.07
5.3.60.0050.03712.06
5.3.50.0080.03312.00
5.3.40.0090.03212.00
5.3.30.0100.03411.94
5.3.20.0060.03511.72
5.3.10.0070.03211.69
5.3.00.0060.03511.69
5.2.170.0060.0339.18
5.2.160.0060.0299.18
5.2.150.0070.0289.18
5.2.140.0060.0329.17
5.2.130.0040.0309.14
5.2.120.0070.0289.13
5.2.110.0030.0309.14
5.2.100.0060.0279.14
5.2.90.0060.0289.14
5.2.80.0080.0329.13
5.2.70.0040.0319.14
5.2.60.0050.0309.09
5.2.50.0050.0299.05
5.2.40.0040.0299.03
5.2.30.0050.0289.01
5.2.20.0030.0308.99
5.2.10.0070.0298.91
5.2.00.0050.0318.78
5.1.60.0090.0208.06
5.1.50.0060.0238.05
5.1.40.0000.0318.04
5.1.30.0080.0228.39
5.1.20.0030.0288.41
5.1.10.0050.0258.13
5.1.00.0060.0248.14
5.0.50.0020.0236.62
5.0.40.0030.0196.47
5.0.30.0050.0296.29
5.0.20.0030.0206.26
5.0.10.0050.0226.23
5.0.00.0030.0316.22
4.4.90.0060.0124.78
4.4.80.0040.0154.75
4.4.70.0010.0174.75
4.4.60.0050.0134.76
4.4.50.0030.0144.77
4.4.40.0040.0234.71
4.4.30.0020.0164.75
4.4.20.0020.0164.84
4.4.10.0020.0164.84
4.4.00.0040.0234.76
4.3.110.0040.0154.67
4.3.100.0040.0144.66
4.3.90.0010.0164.64
4.3.80.0010.0314.58
4.3.70.0030.0144.63
4.3.60.0030.0144.63
4.3.50.0030.0164.63
4.3.40.0040.0234.54
4.3.30.0030.0173.28
4.3.20.0030.0203.26
4.3.10.0020.0353.22
4.3.00.0000.01313.37

preferences:
41.43 ms | 401 KiB | 5 Q