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($test, 'UCS-2', 'UTF-8')); var_dump(mb_detect_encoding($test, ['UTF-7', '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)
8.3.40.0120.00318.54
8.3.30.0100.00719.10
8.3.20.0100.00320.13
8.3.10.0080.00021.89
8.3.00.0030.00519.13
8.2.170.0070.00722.96
8.2.160.0110.00320.48
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0100.00326.16
8.2.120.0090.00020.54
8.2.110.0060.00322.16
8.2.100.0040.00717.97
8.2.90.0090.00019.11
8.2.80.0060.00317.97
8.2.70.0000.00817.50
8.2.60.0040.00417.78
8.2.50.0000.00818.07
8.2.40.0050.00319.82
8.2.30.0040.00417.98
8.2.20.0040.00417.73
8.2.10.0040.00418.05
8.2.00.0030.00517.66
8.1.270.0030.00523.71
8.1.260.0040.00426.35
8.1.250.0030.00528.09
8.1.240.0060.00323.96
8.1.230.0080.00419.15
8.1.220.0040.00417.74
8.1.210.0030.00518.77
8.1.200.0070.00317.35
8.1.190.0080.00017.13
8.1.180.0040.00418.10
8.1.170.0050.00318.40
8.1.160.0020.00521.88
8.1.150.0030.00618.75
8.1.140.0060.00317.49
8.1.130.0070.00017.78
8.1.120.0000.00717.47
8.1.110.0050.00517.35
8.1.100.0040.00417.45
8.1.90.0040.00417.39
8.1.80.0030.00517.37
8.1.70.0040.00417.34
8.1.60.0000.00817.44
8.1.50.0030.00717.41
8.1.40.0050.00217.57
8.1.30.0050.00317.68
8.1.20.0000.00717.48
8.1.10.0070.00017.38
8.1.00.0070.00017.29
8.0.300.0040.00418.77
8.0.290.0070.00016.75
8.0.280.0030.00318.42
8.0.270.0070.00017.27
8.0.260.0090.00017.16
8.0.250.0040.00416.97
8.0.240.0000.00716.84
8.0.230.0030.00316.94
8.0.220.0040.00416.88
8.0.210.0000.00716.88
8.0.200.0040.00516.86
8.0.190.0040.00416.83
8.0.180.0040.00416.81
8.0.170.0050.00216.95
8.0.160.0000.00716.75
8.0.150.0070.00016.79
8.0.140.0030.00516.80
8.0.130.0030.00313.30
8.0.120.0040.00416.75
8.0.110.0000.00816.86
8.0.100.0040.00416.91
8.0.90.0020.00516.87
8.0.80.0090.00616.77
8.0.70.0000.00817.00
8.0.60.0070.00016.88
8.0.50.0070.00016.75
8.0.30.0070.01216.87
8.0.20.0070.01317.40
8.0.10.0050.00316.91
8.0.00.0100.00916.61
7.4.330.0000.00515.04
7.4.320.0030.00316.52
7.4.300.0000.00616.61
7.4.290.0000.00716.48
7.4.280.0080.00016.48
7.4.270.0000.00716.60
7.4.260.0060.00316.48
7.4.250.0000.00716.56
7.4.240.0040.00316.57
7.4.230.0030.00316.49
7.4.220.0030.01416.68
7.4.210.0070.00716.55
7.4.200.0070.00016.41
7.4.160.0090.01316.65
7.4.150.0110.00817.40
7.4.140.0060.01317.86
7.4.130.0140.00316.46
7.4.120.0120.00416.43
7.4.110.0120.01216.53
7.4.100.0060.01116.46
7.4.90.0080.00816.49
7.4.80.0140.00719.39
7.4.70.0090.01216.55
7.4.60.0100.00616.52
7.4.50.0040.00416.42
7.4.40.0080.00916.37
7.4.30.0160.00016.51
7.4.00.0070.01014.96
7.3.330.0030.00313.12
7.3.320.0050.00012.97
7.3.310.0030.00516.34
7.3.300.0030.00316.14
7.3.290.0070.00716.19
7.3.280.0090.00816.19
7.3.270.0120.00617.40
7.3.260.0070.01016.41
7.3.250.0060.01216.24
7.3.240.0060.01216.13
7.3.230.0040.01416.39
7.3.210.0150.00616.34
7.3.200.0090.01319.39
7.3.190.0060.01316.21
7.3.180.0150.00316.22
7.3.170.0100.00716.27
7.3.160.0040.01116.23
7.3.120.0110.00414.65
7.3.110.0040.01114.52
7.3.100.0070.00714.39
7.3.90.0070.00714.69
7.3.80.0080.00414.46
7.3.70.0000.01514.89
7.3.60.0000.01014.49
7.3.50.0030.00714.71
7.3.40.0070.00714.61
7.3.30.0000.01614.61
7.3.20.0000.01616.61
7.3.10.0070.00816.38
7.3.00.0040.00916.40
7.2.330.0120.00916.55
7.2.320.0070.01116.58
7.2.310.0060.01016.33
7.2.300.0130.00316.32
7.2.290.0100.00716.27
7.2.240.0080.00814.98
7.2.230.0070.00714.69
7.2.220.0000.01815.06
7.2.210.0030.01015.07
7.2.200.0000.01414.68
7.2.190.0060.00914.96
7.2.180.0090.00614.93
7.2.170.0090.00314.94
7.2.160.0090.00314.56
7.2.150.0060.00816.69
7.2.140.0090.00616.57
7.2.130.0090.00616.67
7.2.120.0070.00916.53
7.2.110.0100.00516.62
7.2.100.0080.00816.81
7.2.90.0080.00816.62
7.2.80.0100.00816.61
7.2.70.0080.00916.68
7.2.60.0070.01016.65
7.2.50.0040.01016.57
7.2.40.0050.01016.64
7.2.30.0090.00816.78
7.2.20.0040.01116.78
7.2.10.0100.00416.58
7.2.00.0040.00817.17
7.1.330.0070.00715.86
7.1.320.0070.01015.73
7.1.310.0040.01115.76
7.1.300.0090.00615.63
7.1.290.0040.00815.71
7.1.280.0040.01115.78
7.1.270.0170.00015.85
7.1.260.0070.01015.82
7.1.250.0050.00815.41
7.1.100.0060.00918.11
7.1.70.0020.00516.93
7.1.60.0060.01919.32
7.1.50.0120.01216.71
7.1.00.0030.08022.35
7.0.200.0000.01016.41
7.0.140.0030.07322.00
7.0.60.0100.06719.91
7.0.50.0070.07717.88
7.0.40.0000.08320.05
7.0.30.0200.03720.10
7.0.20.0170.04720.18
7.0.10.0030.04320.30
7.0.00.0000.04720.16
5.6.280.0000.07720.98
5.6.210.0030.07720.47
5.6.200.0070.05318.11
5.6.190.0070.08320.35
5.6.180.0430.07720.77
5.6.170.0230.08720.38
5.6.160.0030.04020.46
5.6.150.0030.07718.13
5.6.140.0130.07718.09
5.6.130.0130.06018.18
5.6.120.0070.04320.93
5.6.110.0070.05720.95
5.6.100.0030.05321.10
5.6.90.0030.04020.96
5.6.80.0070.06020.39
5.5.350.0070.09020.45
5.5.340.0100.06318.02
5.5.330.0170.07720.07
5.5.320.0370.05720.29
5.5.310.0230.07720.29
5.5.300.0030.05017.98
5.5.290.0070.08017.90
5.5.280.0100.08020.89
5.5.270.0170.03320.85
5.5.260.0130.06720.75
5.5.250.0000.04720.70
5.5.240.0270.10020.03
5.4.450.0230.04319.56
5.4.440.0330.02719.57
5.4.430.0300.04319.38
5.4.420.0630.00019.27
5.4.410.0630.00019.21
5.4.400.0630.00019.20
5.4.390.0630.00019.07
5.4.380.0670.00018.96
5.4.370.0630.00018.96
5.4.360.0630.00019.02
5.4.350.0630.00018.96
5.4.340.0070.03511.97
5.4.320.0060.03612.45
5.4.310.0070.03712.45
5.4.300.0070.03812.45
5.4.290.0060.04012.45
5.4.280.0050.04012.34
5.4.270.0040.04212.34
5.4.260.0080.04512.34
5.4.250.0060.04612.35
5.4.240.0050.03912.34
5.4.230.0040.04212.34
5.4.220.0060.03612.34
5.4.210.0070.03612.34
5.4.200.0060.05112.34
5.4.190.0090.03412.34
5.4.180.0080.05012.34
5.4.170.0110.04812.34
5.4.160.0110.05012.34
5.4.150.0080.05012.34
5.4.140.0080.05012.02
5.4.130.0110.04512.01
5.4.120.0050.05211.97
5.4.110.0100.06011.96
5.4.100.0050.04411.96
5.4.90.0080.03911.96
5.4.80.0090.03611.96
5.4.70.0110.04311.96
5.4.60.0090.03811.96
5.4.50.0050.04211.96
5.4.40.0050.04811.95
5.4.30.0120.05011.95
5.4.20.0110.04311.95
5.4.10.0060.05011.95
5.4.00.0060.03711.43
5.3.290.0050.04812.80
5.3.280.0100.04712.71
5.3.270.0060.05712.73
5.3.260.0100.04812.72
5.3.250.0080.04512.72
5.3.240.0080.04112.72
5.3.230.0070.04112.71
5.3.220.0110.03712.68
5.3.210.0080.05512.68
5.3.200.0100.05412.68
5.3.190.0060.03812.68
5.3.180.0060.03712.67
5.3.170.0080.03612.67
5.3.160.0100.03412.68
5.3.150.0070.03712.67
5.3.140.0070.03712.66
5.3.130.0070.03812.66
5.3.120.0080.03712.66
5.3.110.0070.04012.66
5.3.100.0090.03912.12
5.3.90.0060.03712.08
5.3.80.0040.03812.07
5.3.70.0070.03612.07
5.3.60.0070.03612.07
5.3.50.0080.03412.00
5.3.40.0030.04012.00
5.3.30.0050.03611.95
5.3.20.0100.03511.73
5.3.10.0070.03511.70
5.3.00.0060.03611.69
5.2.170.0030.0329.18
5.2.160.0090.0249.18
5.2.150.0060.0299.18
5.2.140.0040.0339.18
5.2.130.0020.0329.14
5.2.120.0060.0269.14
5.2.110.0060.0279.15
5.2.100.0050.0299.14
5.2.90.0060.0299.14
5.2.80.0050.0309.14
5.2.70.0060.0299.14
5.2.60.0050.0309.09
5.2.50.0060.0299.06
5.2.40.0070.0269.04
5.2.30.0030.0329.02
5.2.20.0080.0309.00
5.2.10.0030.0308.92
5.2.00.0070.0308.78
5.1.60.0050.0238.07
5.1.50.0070.0228.07
5.1.40.0060.0238.04
5.1.30.0030.0278.40
5.1.20.0060.0258.41
5.1.10.0050.0268.14
5.1.00.0040.0268.15
5.0.50.0060.0196.63
5.0.40.0040.0206.48
5.0.30.0070.0296.30
5.0.20.0050.0196.27
5.0.10.0070.0226.25
5.0.00.0080.0376.23
4.4.90.0050.0204.78
4.4.80.0030.0204.75
4.4.70.0040.0214.75
4.4.60.0040.0204.76
4.4.50.0030.0224.77
4.4.40.0050.0314.71
4.4.30.0030.0214.76
4.4.20.0060.0204.84
4.4.10.0060.0214.85
4.4.00.0070.0334.76
4.3.110.0050.0254.67
4.3.100.0040.0244.67
4.3.90.0030.0274.63
4.3.80.0050.0334.58
4.3.70.0040.0214.63
4.3.60.0030.0204.63
4.3.50.0090.0214.63
4.3.40.0050.0464.54
4.3.30.0040.0213.29
4.3.20.0060.0193.27
4.3.10.0030.0213.23
4.3.00.0000.01313.37

preferences:
41.28 ms | 400 KiB | 5 Q