3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = "some\xc2\xa0 text "; var_dump($test); 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)
8.3.60.0100.01018.15
8.3.50.0100.01322.07
8.3.40.0100.00718.45
8.3.30.0110.00418.97
8.3.20.0030.01620.13
8.3.10.0000.00821.76
8.3.00.0090.00019.13
8.2.180.0110.01125.92
8.2.170.0070.01418.96
8.2.160.0070.00722.96
8.2.150.0070.00025.66
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0040.00422.18
8.2.110.0030.00622.11
8.2.100.0060.00617.75
8.2.90.0040.00419.22
8.2.80.0040.00417.97
8.2.70.0050.00517.50
8.2.60.0080.00017.80
8.2.50.0040.00818.07
8.2.40.0060.00319.95
8.2.30.0040.00418.02
8.2.20.0040.00417.54
8.2.10.0030.00517.98
8.2.00.0040.00417.54
8.1.280.0110.00425.92
8.1.270.0030.00523.99
8.1.260.0000.00726.35
8.1.250.0070.00028.09
8.1.240.0000.00924.00
8.1.230.0120.00019.01
8.1.220.0000.00817.74
8.1.210.0030.00518.77
8.1.200.0040.00417.35
8.1.190.0030.00617.10
8.1.180.0040.00418.10
8.1.170.0060.00318.50
8.1.160.0000.00821.88
8.1.150.0000.00818.81
8.1.140.0040.00417.29
8.1.130.0070.00017.86
8.1.120.0030.00317.38
8.1.110.0050.00317.44
8.1.100.0000.00717.32
8.1.90.0030.00317.48
8.1.80.0000.00717.37
8.1.70.0000.00717.28
8.1.60.0030.00617.57
8.1.50.0000.00817.54
8.1.40.0000.00717.37
8.1.30.0050.00317.58
8.1.20.0080.00017.55
8.1.10.0070.00017.38
8.1.00.0000.00717.47
8.0.300.0000.00818.77
8.0.290.0040.00416.75
8.0.280.0070.00018.35
8.0.270.0000.00717.24
8.0.260.0040.00417.16
8.0.250.0070.00016.80
8.0.240.0030.00317.00
8.0.230.0040.00416.84
8.0.220.0030.00316.89
8.0.210.0030.00316.82
8.0.200.0070.00316.98
8.0.190.0040.00416.83
8.0.180.0000.00716.89
8.0.170.0000.00816.79
8.0.160.0060.00316.79
8.0.150.0000.00816.86
8.0.140.0060.00316.78
8.0.130.0000.00613.37
8.0.120.0050.00316.85
8.0.110.0040.00416.82
8.0.100.0000.00816.81
8.0.90.0050.00216.94
8.0.80.0090.00916.86
8.0.70.0000.00716.66
8.0.60.0030.00316.91
8.0.50.0070.00016.75
8.0.30.0050.01417.11
8.0.20.0070.01217.40
8.0.10.0060.00316.82
8.0.00.0110.00616.72
7.4.330.0050.00015.14
7.4.320.0030.00316.52
7.4.300.0030.00316.48
7.4.290.0070.00016.49
7.4.280.0040.00416.58
7.4.270.0030.00316.60
7.4.260.0070.00016.39
7.4.250.0000.00716.46
7.4.240.0050.00216.57
7.4.230.0030.00316.63
7.4.220.0060.01216.68
7.4.210.0050.00916.67
7.4.200.0000.00716.38
7.4.160.0100.00716.32
7.4.150.0110.00617.40
7.4.140.0070.01417.86
7.4.130.0080.01216.43
7.4.120.0120.00516.48
7.4.110.0110.01116.49
7.4.100.0120.00616.19
7.4.90.0140.00316.35
7.4.80.0070.01119.39
7.4.70.0020.01316.59
7.4.60.0070.01016.60
7.4.50.0030.00516.29
7.4.40.0150.00416.19
7.4.30.0030.01316.31
7.4.00.0070.00714.91
7.3.330.0020.00213.09
7.3.320.0020.00212.95
7.3.310.0000.00716.19
7.3.300.0000.00716.08
7.3.290.0100.00316.10
7.3.280.0080.00716.23
7.3.270.0160.00317.40
7.3.260.0100.00716.36
7.3.250.0080.00816.26
7.3.240.0150.00516.44
7.3.230.0170.00016.39
7.3.210.0170.00016.36
7.3.200.0070.01619.39
7.3.190.0090.01216.12
7.3.180.0090.00616.17
7.3.170.0070.01116.27
7.3.160.0120.00316.29
7.2.330.0080.00916.26
7.2.320.0060.01016.28
7.2.310.0160.00016.39
7.2.300.0080.00816.45
7.2.290.0030.01416.58
7.2.60.0090.00316.82
7.2.00.0000.01519.26
7.1.200.0040.01115.69
7.1.100.0030.00818.14
7.1.70.0000.00717.09
7.1.60.0100.01419.32
7.1.50.0040.01916.79
7.1.00.0070.07322.33
7.0.200.0090.00616.82
7.0.140.0030.07322.15
7.0.60.0000.06719.91
7.0.50.0000.08317.73
7.0.40.0130.08720.20
7.0.30.0300.08320.12
7.0.20.0170.04720.18
7.0.10.0200.09020.00
7.0.00.0100.05320.17
5.6.280.0030.07320.98
5.6.210.0030.04020.62
5.6.200.0200.03318.25
5.6.190.0100.04020.64
5.6.180.0270.04020.67
5.6.170.0230.04020.50
5.6.160.0070.05320.52
5.6.150.0100.08018.16
5.6.140.0070.07718.22
5.6.130.0100.04318.21
5.6.120.0030.06021.11
5.6.110.0230.03321.00
5.6.100.0070.08321.00
5.6.90.0000.07020.87
5.6.80.0070.07320.36
5.6.70.4500.03720.36
5.5.350.0170.04720.48
5.5.340.0130.07317.94
5.5.330.0070.04020.43
5.5.320.0370.04020.18
5.5.310.0300.05020.21
5.5.300.0030.06017.96
5.5.290.0100.07317.91
5.5.280.0000.05320.76
5.5.270.0070.07020.85
5.5.260.0100.08320.86
5.5.250.0030.08320.79
5.5.240.0270.07720.28
5.4.450.0430.03319.21
5.4.440.0330.04719.10
5.4.430.0470.04719.40
5.4.420.0500.07319.25
5.4.410.0500.06719.43
5.4.400.0570.05319.16
5.4.390.0330.04718.93
5.4.380.0530.05718.92
5.4.370.0400.04018.93
5.4.360.0400.03719.24
5.4.350.0370.04018.80
5.4.340.0670.03719.13
5.4.320.0430.05319.09
5.4.310.0470.03319.24
5.4.300.0400.05318.95
5.4.290.0470.03019.08
5.4.280.0600.05718.79
5.4.270.0430.04019.23
5.4.260.0400.03719.21
5.4.250.0600.06019.08
5.4.240.0430.04318.91
5.4.230.0500.04719.08
5.4.220.0430.05019.07
5.4.210.0570.05718.80
5.4.200.0470.03319.04
5.4.190.0400.04319.04
5.4.180.0530.05719.12
5.4.170.0600.04718.78
5.4.160.0400.04019.08
5.4.150.0530.04319.25
5.4.140.0370.04016.29
5.4.130.0470.04016.25
5.4.120.0570.05716.34
5.4.110.0530.06716.24
5.4.100.0430.03716.43
5.4.90.0500.03716.39
5.4.80.0330.04016.41
5.4.70.0470.06016.41
5.4.60.0470.03316.36
5.4.50.0500.04316.36
5.4.40.0430.04316.40
5.4.30.0300.04016.27
5.4.20.0430.06316.04
5.4.10.0370.03716.19
5.4.00.0530.06015.88
5.3.290.0500.04014.57
5.3.280.0470.05314.45
5.3.270.0530.06314.70
5.3.260.0430.03714.46
5.3.250.0430.03314.45
5.3.240.0370.04014.62
5.3.230.0500.06314.54
5.3.220.0670.05014.66
5.3.210.0530.04714.42
5.3.200.0530.05714.59
5.3.190.0530.07014.42
5.3.180.0400.05014.41
5.3.170.0530.06014.40
5.3.160.0430.04714.51
5.3.150.0430.05014.41
5.3.140.0530.06314.54
5.3.130.0570.06014.48
5.3.120.0530.04014.49
5.3.110.0530.04314.55
5.3.100.0530.04313.98
5.3.90.0530.05713.85
5.3.80.0400.04714.12
5.3.70.0630.05013.97
5.3.60.0500.04313.96
5.3.50.0500.06713.79
5.3.40.0430.03713.89
5.3.30.0300.04313.92
5.3.20.0400.04013.52
5.3.10.0430.06013.63
5.3.00.0300.03713.48
5.2.170.0230.03312.45
5.2.160.0330.03312.45
5.2.150.0300.02712.45
5.2.140.0400.03012.45
5.2.130.0400.05012.45
5.2.120.0430.05012.45
5.2.110.0270.03012.45
5.2.100.0300.03012.45
5.2.90.0370.05012.45
5.2.80.0400.04012.45
5.2.70.0300.03712.45
5.2.60.0370.03012.45
5.2.50.0370.06012.45
5.2.40.0300.02312.45
5.2.30.0230.02712.45
5.2.20.0330.05312.45
5.2.10.0270.02312.45
5.2.00.0400.04312.45
5.1.60.0300.02712.45
5.1.50.0270.02312.45
5.1.40.0300.03012.45
5.1.30.0300.02012.45
5.1.20.0230.03012.45
5.1.10.0270.02712.45
5.1.00.0270.02312.45
5.0.50.0130.02712.45
5.0.40.0200.01712.45
5.0.30.0170.06012.45
5.0.20.0230.03712.45
5.0.10.0200.04012.45
5.0.00.0130.03712.45
4.4.90.0130.03312.45
4.4.80.0170.02712.45
4.4.70.0230.01312.45
4.4.60.0230.01012.45
4.4.50.0170.03312.45
4.4.40.0230.04012.45
4.4.30.0130.02712.45
4.4.20.0170.02712.45
4.4.10.0170.03312.45
4.4.00.0170.03712.45
4.3.110.0200.01312.45
4.3.100.0130.01712.45
4.3.90.0170.03012.45
4.3.80.0130.03012.45
4.3.70.0230.02712.45
4.3.60.0130.02012.45
4.3.50.0200.03012.45
4.3.40.0130.04312.45
4.3.30.0070.03712.45
4.3.20.0070.03712.45
4.3.10.0070.02012.45
4.3.00.0100.03312.45

preferences:
56.34 ms | 401 KiB | 5 Q