3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str2 = "占楼"; var_dump(mb_detect_encoding($str2, 'CP936', true)); var_dump(mb_detect_encoding($str2, 'EUC-CN', true)); var_dump(mb_detect_encoding($str2, 'UTF-8', true));

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)
8.3.60.0110.01118.06
8.3.50.0130.00522.13
8.3.40.0040.01118.59
8.3.30.0060.00918.88
8.3.20.0040.00420.16
8.3.10.0000.00920.54
8.3.00.0030.00619.25
8.2.180.0120.00416.50
8.2.170.0140.00722.96
8.2.160.0070.00720.43
8.2.150.0040.00424.18
8.2.140.0040.00724.66
8.2.130.0080.00026.16
8.2.120.0040.00422.34
8.2.110.0090.00022.24
8.2.100.0060.00618.03
8.2.90.0030.00519.47
8.2.80.0000.00817.97
8.2.70.0060.00317.75
8.2.60.0100.00018.29
8.2.50.0030.00618.07
8.2.40.0070.00218.15
8.2.30.0000.00719.58
8.2.20.0040.00417.90
8.2.10.0030.00318.11
8.2.00.0040.00417.72
8.1.280.0070.01425.92
8.1.270.0080.00022.32
8.1.260.0050.00226.35
8.1.250.0090.00028.09
8.1.240.0030.00622.12
8.1.230.0080.00319.26
8.1.220.0040.00417.77
8.1.210.0000.00818.77
8.1.200.0030.00617.25
8.1.190.0030.00517.48
8.1.180.0040.00418.10
8.1.170.0000.00818.54
8.1.160.0040.00422.03
8.1.150.0000.00818.86
8.1.140.0030.00317.56
8.1.130.0030.00318.03
8.1.120.0050.00217.59
8.1.110.0000.00817.58
8.1.100.0000.00717.62
8.1.90.0000.00717.55
8.1.80.0040.00417.57
8.1.70.0030.00317.45
8.1.60.0060.00317.66
8.1.50.0000.00817.66
8.1.40.0050.00217.51
8.1.30.0040.00417.75
8.1.20.0040.00417.69
8.1.10.0000.00717.64
8.1.00.0040.00417.67
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0030.00318.53
8.0.270.0030.00517.25
8.0.260.0000.00617.29
8.0.250.0030.00316.99
8.0.240.0000.00817.03
8.0.230.0000.00717.04
8.0.220.0000.00716.93
8.0.210.0000.00816.83
8.0.200.0060.00016.94
8.0.190.0090.00017.06
8.0.180.0040.00416.95
8.0.170.0000.00816.93
8.0.160.0040.00416.83
8.0.150.0040.00416.89
8.0.140.0000.00716.93
8.0.130.0060.00013.32
8.0.120.0080.00016.91
8.0.110.0040.00416.91
8.0.100.0070.00016.82
8.0.90.0000.00716.90
8.0.80.0000.01816.98
8.0.70.0070.00016.84
8.0.60.0000.00716.98
8.0.50.0000.00816.99
8.0.30.0100.01017.06
8.0.20.0050.01617.40
8.0.10.0040.00416.88
8.0.00.0090.00916.64
7.4.330.0000.00615.00
7.4.320.0000.00616.54
7.4.300.0030.00316.54
7.4.290.0030.00316.55
7.4.280.0040.00416.63
7.4.270.0000.00716.54
7.4.260.0050.00216.45
7.4.250.0070.00016.65
7.4.240.0050.00216.61
7.4.230.0000.00716.65
7.4.220.0090.00916.71
7.4.210.0150.00616.69
7.4.200.0040.00416.69
7.4.160.0130.00416.60
7.4.150.0140.01017.40
7.4.140.0070.01317.86
7.4.130.0110.00516.49
7.4.120.0080.00816.52
7.4.110.0090.00916.48
7.4.100.0070.01016.44
7.4.90.0080.00816.57
7.4.80.0060.01019.39
7.4.70.0080.01516.53
7.4.60.0130.00316.64
7.4.50.0050.00016.65
7.4.40.0090.00616.18
7.4.30.0060.00916.51
7.4.00.0070.01114.93
7.3.330.0060.00013.00
7.3.320.0020.00213.16
7.3.310.0070.00016.30
7.3.300.0070.00016.28
7.3.290.0070.01016.30
7.3.280.0060.00916.24
7.3.270.0050.01117.40
7.3.260.0130.00416.51
7.3.250.0130.00416.37
7.3.240.0130.00316.18
7.3.230.0080.00816.39
7.3.210.0120.00416.37
7.3.200.0120.00419.39
7.3.190.0060.01416.23
7.3.180.0080.00816.48
7.3.170.0030.01816.27
7.3.160.0070.01016.27
7.2.330.0070.01016.68
7.2.320.0170.00016.56
7.2.310.0090.00916.68
7.2.300.0130.01016.39
7.2.290.0090.00816.55
7.2.60.0040.01116.96
7.2.00.0120.00919.44
7.1.200.0060.00615.76
7.1.100.0100.01018.07
7.1.70.0000.01016.80
7.1.60.0060.01919.61
7.1.50.0030.00917.07
7.1.00.0000.07722.31
7.0.200.0070.00316.86
7.0.140.0000.07722.06
7.0.60.0070.08719.86
7.0.50.0130.06317.77
7.0.40.0070.04020.35
7.0.30.0300.06320.18
7.0.20.0270.08320.16
7.0.10.0070.08320.03
7.0.00.0000.04320.04
5.6.280.0100.06721.02
5.6.210.0030.04020.73
5.6.200.0070.08718.08
5.6.190.0070.04020.51
5.6.180.0400.06720.35
5.6.170.0230.09020.40
5.6.160.0070.05320.40
5.6.150.0130.04318.17
5.6.140.0200.04318.12
5.6.130.0000.04318.07
5.6.120.0130.07721.01
5.6.110.0100.09021.03
5.6.100.0070.08720.95
5.6.90.0070.06021.01
5.6.80.0130.07320.41
5.5.350.0330.07320.38
5.5.340.0000.07717.89
5.5.330.0000.08320.13
5.5.320.0370.06320.30
5.5.310.0230.04720.16
5.5.300.0070.08317.91
5.5.290.0030.08317.97
5.5.280.0070.04720.61
5.5.270.0100.04720.79
5.5.260.0070.08320.76
5.5.250.0100.06320.57
5.5.240.0000.08720.18
5.4.450.0270.04319.39
5.4.440.0170.05019.46
5.4.430.0200.04719.06
5.4.420.0530.04019.39
5.4.410.0370.03719.08
5.4.400.0300.03319.23
5.4.390.0230.04319.24
5.4.380.0400.04718.68
5.4.370.0330.05718.43
5.4.360.0370.05318.56
5.4.350.0330.05318.68
5.4.340.0270.05018.49
5.4.320.0060.03512.45
5.4.310.0060.03612.45
5.4.300.0040.04112.45
5.4.290.0080.03412.45
5.4.280.0050.03512.35
5.4.270.0080.04012.34
5.4.260.0090.03312.34
5.4.250.0040.03812.34
5.4.240.0090.03812.35
5.4.230.0120.03812.34
5.4.220.0080.03712.34
5.4.210.0050.03712.34
5.4.200.0050.03712.34
5.4.190.0060.04212.33
5.4.180.0060.03412.33
5.4.170.0080.04312.35
5.4.160.0090.04512.34
5.4.150.0060.03512.34
5.4.140.0090.04112.02
5.4.130.0060.04012.01
5.4.120.0050.03611.96
5.4.110.0040.03611.96
5.4.100.0050.03411.96
5.4.90.0060.03511.96
5.4.80.0050.03611.96
5.4.70.0070.03711.96
5.4.60.0040.03511.96
5.4.50.0030.03811.96
5.4.40.0050.03911.95
5.4.30.0080.04611.95
5.4.20.0080.03211.95
5.4.10.0050.03411.95
5.4.00.0050.03511.43
5.3.290.0040.04012.80
5.3.280.0050.03712.71
5.3.270.0060.03812.72
5.3.260.0090.04012.72
5.3.250.0060.03812.72
5.3.240.0100.03712.72
5.3.230.0070.03712.71
5.3.220.0060.04612.68
5.3.210.0050.04512.68
5.3.200.0080.04312.68
5.3.190.0070.04012.68
5.3.180.0070.03912.68
5.3.170.0060.03612.66
5.3.160.0050.03912.67
5.3.150.0050.03912.68
5.3.140.0060.03712.66
5.3.130.0090.03712.66
5.3.120.0040.04912.66
5.3.110.0060.04112.66
5.3.100.0050.04012.11
5.3.90.0050.03912.08
5.3.80.0050.03812.08
5.3.70.0070.03612.07
5.3.60.0110.05212.06
5.3.50.0060.03612.00
5.3.40.0060.04012.00
5.3.30.0080.04411.94
5.3.20.0040.04611.72
5.3.10.0050.03611.69
5.3.00.0080.03411.68
5.2.170.0050.0309.18
5.2.160.0050.0289.18
5.2.150.0050.0299.18
5.2.140.0050.0299.18
5.2.130.0030.0309.13
5.2.120.0050.0289.14
5.2.110.0060.0289.14
5.2.100.0060.0279.14
5.2.90.0020.0319.14
5.2.80.0040.0349.13
5.2.70.0050.0299.14
5.2.60.0020.0329.09
5.2.50.0040.0309.06
5.2.40.0010.0339.03
5.2.30.0080.0349.01
5.2.20.0050.0309.00
5.2.10.0060.0328.91
5.2.00.0010.0328.77
5.1.60.0030.0258.06
5.1.50.0030.0258.06
5.1.40.0030.0308.04
5.1.30.0040.0268.39
5.1.20.0060.0248.41
5.1.10.0060.0258.14
5.1.00.0070.0248.13
5.0.50.0040.0196.61
5.0.40.0040.0196.47
5.0.30.0020.0326.29
5.0.20.0020.0206.26
5.0.10.0060.0256.23
5.0.00.0070.0536.23
4.4.90.0030.0224.78
4.4.80.0040.0174.75
4.4.70.0020.0164.75
4.4.60.0040.0144.75
4.4.50.0040.0164.77
4.4.40.0070.0204.70
4.4.30.0050.0174.75
4.4.20.0040.0144.85
4.4.10.0020.0154.85
4.4.00.0030.0324.76
4.3.110.0010.0244.67
4.3.100.0010.0174.66
4.3.90.0020.0154.63
4.3.80.0040.0234.58
4.3.70.0040.0134.63
4.3.60.0010.0164.63
4.3.50.0010.0204.63
4.3.40.0070.0274.54
4.3.30.0000.0183.28
4.3.20.0020.0163.26
4.3.10.0000.0173.21
4.3.00.0030.01716.73

preferences:
58.41 ms | 401 KiB | 5 Q