3v4l.org

run code in 300+ PHP versions simultaneously
<?php $char = '£»øabc'; echo mb_detect_encoding($char); $char = mb_convert_encoding($char, "Windows-1252", "UTF-8"); echo mb_detect_encoding($char);

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)
8.3.60.0140.00716.75
8.3.50.0110.00922.82
8.3.40.0080.01218.54
8.3.30.0160.00618.95
8.3.20.0130.00720.22
8.3.10.0170.01418.46
8.3.00.0040.01519.25
8.2.180.0120.00416.50
8.2.170.0070.00722.96
8.2.160.0150.00620.41
8.2.150.0190.00024.18
8.2.140.0060.01224.66
8.2.130.0040.01526.16
8.2.120.0050.00321.12
8.2.110.0030.00620.40
8.2.100.0060.00618.22
8.2.90.0030.00619.47
8.2.80.0030.00517.97
8.2.70.0000.00817.75
8.2.60.0040.00418.29
8.2.50.0060.00318.07
8.2.40.0040.00420.20
8.2.30.0000.00819.48
8.2.20.0080.00017.91
8.2.10.0090.00020.05
8.2.00.0060.00317.91
8.1.280.0170.00725.92
8.1.270.0150.00423.95
8.1.260.0090.00926.35
8.1.250.0120.00628.09
8.1.240.0030.00624.09
8.1.230.0060.00619.28
8.1.220.0040.00417.77
8.1.210.0050.00318.77
8.1.200.0060.00317.25
8.1.190.0040.00417.48
8.1.180.0040.00418.10
8.1.170.0040.00418.66
8.1.160.0050.00222.04
8.1.150.0080.00018.89
8.1.140.0000.00717.47
8.1.130.0030.00317.92
8.1.120.0050.00317.57
8.1.110.0040.00417.55
8.1.100.0040.00417.43
8.1.90.0060.00317.55
8.1.80.0040.00617.50
8.1.70.0000.00717.43
8.1.60.0130.00017.60
8.1.50.0080.00017.52
8.1.40.0030.00617.58
8.1.30.0040.00417.57
8.1.20.0040.00417.69
8.1.10.0060.00317.65
8.1.00.0060.00317.56
8.0.300.0000.00818.77
8.0.290.0030.00516.75
8.0.280.0040.00418.53
8.0.270.0100.00017.43
8.0.260.0000.00717.35
8.0.250.0030.00316.95
8.0.240.0050.00317.13
8.0.230.0000.00817.01
8.0.220.0020.00516.90
8.0.210.0030.00316.97
8.0.200.0000.00716.98
8.0.190.0040.00416.91
8.0.180.0020.00516.87
8.0.170.0040.00416.96
8.0.160.0000.00716.93
8.0.150.0030.00316.86
8.0.140.0060.00316.96
8.0.130.0030.00313.34
8.0.120.0040.00416.94
8.0.110.0030.00516.83
8.0.100.0080.00016.78
8.0.90.0030.00316.88
8.0.80.0160.00316.98
8.0.70.0040.00416.82
8.0.60.0040.00416.80
8.0.50.0000.00816.99
8.0.30.0140.00517.07
8.0.20.0060.01517.40
8.0.10.0040.00417.10
8.0.00.0130.00516.84
7.4.330.0030.00315.03
7.4.320.0030.00316.56
7.4.300.0000.00616.60
7.4.290.0000.00716.41
7.4.280.0000.00716.50
7.4.270.0030.00316.63
7.4.260.0070.00016.55
7.4.250.0030.00516.66
7.4.240.0020.00516.57
7.4.230.0030.00516.68
7.4.220.0030.01416.60
7.4.210.0100.00316.68
7.4.200.0050.00316.46
7.4.160.0110.00516.72
7.4.150.0110.00717.40
7.4.140.0130.01117.86
7.4.130.0110.00616.62
7.4.120.0120.00516.46
7.4.110.0100.00716.57
7.4.100.0160.00616.44
7.4.90.0060.01116.43
7.4.80.0170.00019.39
7.4.70.0070.01116.56
7.4.60.0120.00616.52
7.4.50.0050.00316.33
7.4.40.0100.01016.40
7.4.30.0090.01216.58
7.4.00.0030.00915.00
7.3.330.0060.00013.09
7.3.320.0040.00413.13
7.3.310.0030.00316.14
7.3.300.0030.00316.25
7.3.290.0070.01316.19
7.3.280.0090.00916.29
7.3.270.0070.01017.40
7.3.260.0070.01016.24
7.3.250.0160.00616.44
7.3.240.0150.00316.49
7.3.230.0090.00916.39
7.3.210.0070.01116.39
7.3.200.0150.00619.39
7.3.190.0110.01116.26
7.3.180.0090.00616.44
7.3.170.0120.00616.27
7.3.160.0120.00416.32
7.2.330.0090.00916.75
7.2.320.0180.00016.40
7.2.310.0030.02016.50
7.2.300.0230.00016.71
7.2.290.0100.00716.71
7.2.00.0090.00919.42
7.1.100.0040.01118.01
7.1.70.0040.01217.20
7.1.60.0070.01017.11
7.1.50.0060.01916.69
7.1.00.0030.07322.51
7.0.200.0040.01216.85
7.0.140.0000.07722.15
7.0.110.0070.03719.93
7.0.100.0170.05319.92
7.0.90.0130.06020.01
7.0.80.0130.08019.97
7.0.70.0070.05020.04
7.0.60.0030.05719.93
7.0.50.0130.05719.85
7.0.40.0100.04719.76
7.0.30.0000.04319.78
7.0.20.0070.03319.61
7.0.10.0030.04019.68
7.0.00.0070.06719.84
5.6.280.0100.07020.99
5.6.260.0030.04320.66
5.6.250.0100.08020.69
5.6.240.0130.06320.55
5.6.230.0000.09020.70
5.6.220.0070.07720.53
5.6.210.0030.03720.61
5.6.200.0130.08320.55
5.6.190.0000.04720.68
5.6.180.0030.04020.62
5.6.170.0100.03020.63
5.6.160.0070.04320.46
5.6.150.0100.05720.64
5.6.140.0030.08320.55
5.6.130.0030.07320.54
5.6.120.0070.03320.55
5.6.110.0070.03320.54
5.6.100.0000.04720.54
5.6.90.0030.06020.83
5.6.80.0030.04719.99
5.6.70.0170.06020.00
5.6.60.0130.07019.93
5.6.50.0030.04719.93
5.6.40.0100.04719.92
5.6.30.0000.06020.00
5.6.20.0070.06020.05
5.6.10.0100.03719.90
5.6.00.0100.03319.82
5.5.380.0070.07017.46
5.5.370.0030.04717.50
5.5.360.0070.03717.52
5.5.350.0030.06017.52
5.5.340.0130.05717.77
5.5.330.0070.03718.02
5.5.320.0100.07318.25
5.5.310.0000.04317.84
5.5.300.0030.05717.86
5.5.290.0100.03318.09
5.5.280.0170.06717.85
5.5.270.0100.03018.00
5.5.260.0030.04018.00
5.5.250.0030.04717.94
5.5.240.0030.06717.23
5.5.230.0030.07017.36
5.5.220.0070.03717.47
5.5.210.0070.05717.39
5.5.200.0030.05317.38
5.5.190.0030.05717.24
5.5.180.0070.04717.34
5.5.160.0000.04317.08
5.5.150.0100.07317.50
5.5.140.0070.06017.24
5.5.130.0070.08317.36
5.5.120.0030.04317.50
5.5.110.0000.07317.33
5.5.100.0070.05717.10
5.5.90.0030.04317.03
5.5.80.0000.05317.04
5.5.70.0070.07717.26
5.5.60.0070.07317.40
5.5.50.0100.07017.25
5.5.40.0070.07317.37
5.5.30.0030.07317.34
5.5.20.0000.04717.10
5.5.10.0000.04017.00
5.5.00.0070.07017.33
5.4.450.0100.03019.58
5.4.440.0030.06319.57
5.4.430.0000.07019.27
5.4.420.0100.06719.27
5.4.410.0070.03019.22
5.4.400.0030.03319.18
5.4.390.0070.06319.25
5.4.380.0070.04719.03
5.4.370.0070.03718.98
5.4.360.0170.06718.95
5.4.350.0030.04719.15
5.4.340.0130.06718.98
5.4.320.0130.07018.93
5.4.310.0070.05318.95
5.4.300.0030.08019.02
5.4.290.0070.03319.18
5.4.280.0070.05019.10
5.4.270.0070.04719.09
5.4.260.0030.05019.02
5.4.250.0030.03719.27
5.4.240.0000.05018.97
5.4.230.0070.07719.02
5.4.220.0030.05719.02
5.4.210.0030.05019.07
5.4.200.0030.08019.10
5.4.190.0000.04018.99
5.4.180.0000.04319.17
5.4.170.0070.03319.00
5.4.160.0100.08019.15
5.4.150.0030.05719.00
5.4.140.0030.05316.48
5.4.130.0030.07316.55
5.4.120.0100.06716.55
5.4.110.0070.05316.28
5.4.100.0030.07316.50
5.4.90.0030.06316.20
5.4.80.0070.07316.48
5.4.70.0030.09016.51
5.4.60.0070.02716.48
5.4.50.0070.03016.10
5.4.40.0100.03016.51
5.4.30.0100.06016.22
5.4.20.0000.03316.50
5.4.10.0030.03716.48
5.4.00.0000.03315.63
5.3.290.0100.07714.56
5.3.280.0000.04314.45
5.3.270.0070.03314.43
5.3.260.0070.06014.39
5.3.250.0070.07314.43
5.3.240.0030.07314.68
5.3.230.0100.07314.43
5.3.220.0030.04014.46
5.3.210.0000.07714.55
5.3.200.0070.07714.50
5.3.190.0030.08014.49
5.3.180.0100.06014.44
5.3.170.0030.03714.45
5.3.160.0030.03314.35
5.3.150.0030.03714.57
5.3.140.0070.04314.57
5.3.130.0000.04014.45
5.3.120.0000.04014.61
5.3.110.0030.03714.56
5.3.100.0070.03014.11
5.3.90.0000.03314.08
5.3.80.0070.03313.80
5.3.70.0030.03713.91
5.3.60.0070.03314.01
5.3.50.0070.03313.88
5.3.40.0070.03314.04
5.3.30.0000.03713.84
5.3.20.0030.03013.63
5.3.10.0000.03013.59
5.3.00.0000.03313.71
5.2.170.0000.03011.95
5.2.160.0030.02711.95
5.2.150.0030.02711.95
5.2.140.0000.03011.95
5.2.130.0030.02711.95
5.2.120.0000.02711.95
5.2.110.0000.03011.95
5.2.100.0000.03011.95
5.2.90.0000.02711.95
5.2.80.0030.02311.95
5.2.70.0070.02311.95
5.2.60.0000.03011.95
5.2.50.0070.02011.95
5.2.40.0000.02711.95
5.2.30.0000.02711.95
5.2.20.0000.02711.95
5.2.10.0000.02711.95
5.2.00.0000.02711.95
5.1.60.0070.02011.95
5.1.50.0000.02311.95
5.1.40.0030.01711.95
5.1.30.0030.02011.95
5.1.20.0030.02011.95
5.1.10.0000.02311.95
5.1.00.0000.02311.95
5.0.50.0000.01711.95
5.0.40.0000.01711.95
5.0.30.0000.02711.95
5.0.20.0000.01711.95
5.0.10.0000.01711.95
5.0.00.0030.02711.95
4.4.90.0000.01311.95
4.4.80.0000.01311.95
4.4.70.0000.01311.95
4.4.60.0000.01311.95
4.4.50.0000.01311.95
4.4.40.0000.02311.95
4.4.30.0000.01311.95
4.4.20.0030.01311.95
4.4.10.0000.01311.95
4.4.00.0030.01711.95
4.3.110.0000.01311.95
4.3.100.0000.01311.95
4.3.90.0000.01311.95
4.3.80.0030.01711.95
4.3.70.0000.01311.95
4.3.60.0030.01311.95
4.3.50.0030.01011.95
4.3.40.0000.02011.95
4.3.30.0000.01311.95
4.3.20.0000.01311.95
4.3.10.0000.01311.95
4.3.00.0000.01311.95

preferences:
42.12 ms | 401 KiB | 5 Q