3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = ["a", "b"]; mb_convert_variables("UTF-8", "SJIS,EUC-JP", $x);

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)
8.3.60.0090.00616.25
8.3.50.0110.00418.20
8.3.40.0040.01118.30
8.3.30.0120.00618.59
8.3.20.0040.00421.77
8.3.10.0040.00421.74
8.3.00.0070.00023.48
8.2.180.0100.01016.63
8.2.170.0140.00022.96
8.2.160.0070.00720.38
8.2.150.0030.00625.66
8.2.140.0090.00024.66
8.2.130.0050.00319.51
8.2.120.0040.00426.35
8.2.110.0030.00721.12
8.2.100.0070.00419.33
8.2.90.0040.00417.75
8.2.80.0050.00318.15
8.2.70.0000.00918.05
8.2.60.0000.00818.03
8.2.50.0040.00418.10
8.2.40.0000.00819.34
8.2.30.0080.00021.16
8.2.20.0050.00218.16
8.2.10.0000.00718.23
8.2.00.0000.00817.78
8.1.280.0130.00725.92
8.1.270.0070.00023.97
8.1.260.0040.00428.09
8.1.250.0080.00028.09
8.1.240.0080.00022.33
8.1.230.0070.00320.83
8.1.220.0050.00517.74
8.1.210.0050.00318.77
8.1.200.0060.00317.35
8.1.190.0060.00317.35
8.1.180.0080.00018.10
8.1.170.0030.00718.67
8.1.160.0000.00822.11
8.1.150.0070.00018.94
8.1.140.0030.00519.54
8.1.130.0080.00017.56
8.1.120.0030.00317.39
8.1.110.0040.00417.40
8.1.100.0000.00717.45
8.1.90.0050.00217.49
8.1.80.0040.00417.45
8.1.70.0070.00017.41
8.1.60.0040.00417.57
8.1.50.0030.00617.57
8.1.40.0100.00017.61
8.1.30.0000.00917.57
8.1.20.0030.00617.67
8.1.10.0000.00717.67
8.1.00.0060.00617.55
8.0.300.0080.00020.16
8.0.290.0060.00316.88
8.0.280.0000.00718.37
8.0.270.0050.00316.90
8.0.260.0030.00316.82
8.0.250.0040.00417.00
8.0.240.0080.00016.96
8.0.230.0000.00717.00
8.0.220.0040.00416.90
8.0.210.0030.00316.94
8.0.200.0030.00316.99
8.0.190.0060.00316.98
8.0.180.0000.00716.91
8.0.170.0000.00816.94
8.0.160.0040.00416.91
8.0.150.0050.00216.91
8.0.140.0070.00016.82
8.0.130.0000.00513.43
8.0.120.0000.00816.80
8.0.110.0040.00416.94
8.0.100.0000.00716.89
8.0.90.0030.00616.73
8.0.80.0140.00716.81
8.0.70.0000.00716.88
8.0.60.0000.00716.90
8.0.50.0040.00416.96
8.0.30.0080.01016.99
8.0.20.0090.01117.40
8.0.10.0040.00416.87
8.0.00.0030.01316.87
7.4.330.0050.00015.55
7.4.320.0000.00616.65
7.4.300.0030.00316.64
7.4.290.0000.00716.64
7.4.280.0070.00016.57
7.4.270.0030.00316.55
7.4.260.0050.00516.54
7.4.250.0060.00316.61
7.4.240.0070.00016.65
7.4.230.0000.00716.66
7.4.220.0110.01516.51
7.4.210.0070.01116.52
7.4.200.0030.00316.67
7.4.160.0050.01116.41
7.4.150.0100.00617.40
7.4.140.0110.00817.86
7.4.130.0130.01016.46
7.4.120.0120.00916.44
7.4.110.0030.01416.64
7.4.100.0150.00316.40
7.4.90.0090.00916.53
7.4.80.0110.00617.96
7.4.70.0110.00816.61
7.4.60.0090.00816.57
7.4.50.0100.00616.63
7.4.40.0100.00816.50
7.4.30.0100.00816.50
7.4.20.0150.00316.59
7.4.10.0090.00916.50
7.4.00.0100.00615.47
7.3.330.0090.00212.99
7.3.320.0030.00313.09
7.3.310.0000.00716.19
7.3.300.0060.00016.16
7.3.290.0080.00916.26
7.3.280.0090.01016.27
7.3.270.0130.00317.40
7.3.260.0050.01416.29
7.3.250.0110.00616.27
7.3.240.0110.00616.51
7.3.230.0040.01116.45
7.3.210.0050.01316.41
7.3.200.0090.00916.38
7.3.190.0090.01216.46
7.3.180.0080.01416.45
7.3.170.0080.01016.36
7.3.160.0110.00516.34
7.3.150.0120.00716.32
7.3.140.0100.00716.43
7.3.130.0030.01816.54
7.3.120.0140.00615.60
7.3.110.0050.01515.50
7.3.100.0090.00815.52
7.3.90.0090.00515.46
7.3.80.0040.01115.41
7.3.70.0110.00415.26
7.3.60.0090.00815.34
7.3.50.0090.00715.19
7.3.40.0090.00715.27
7.3.30.0090.00815.03
7.3.20.0100.01215.76
7.3.10.0130.01015.79
7.3.00.0090.00915.89
7.2.330.0070.01116.47
7.2.320.0120.00816.44
7.2.310.0060.01516.45
7.2.300.0110.00916.48
7.2.290.0120.00616.44
7.2.280.0130.00616.71
7.2.270.0060.01516.57
7.2.260.0060.01616.33
7.2.250.0110.01015.73
7.2.240.0080.01115.81
7.2.230.0080.01015.75
7.2.220.0100.00615.70
7.2.210.0090.00715.55
7.2.200.0060.01015.38
7.2.190.0070.00815.39
7.2.180.0070.01015.44
7.2.170.0090.00715.46
7.2.160.0060.01015.69
7.2.150.0170.00815.59
7.2.140.0180.00615.65
7.2.130.0200.00515.61
7.2.120.0220.00515.60
7.2.110.0120.00915.74
7.2.100.0160.00915.68
7.2.90.0480.01015.66
7.2.80.0190.00515.58
7.2.70.0200.00315.71
7.2.60.0170.00316.07
7.2.50.0100.00916.13
7.2.40.0410.01017.04
7.2.30.0320.01217.04
7.2.20.0450.01016.96
7.2.10.0450.00816.88
7.2.00.0450.01016.97
7.1.330.0140.00915.63
7.1.320.0150.01015.66
7.1.310.0140.00915.60
7.1.300.0140.01114.97
7.1.290.0270.00915.07
7.1.280.0150.00614.90
7.1.270.0140.00814.92
7.1.260.0170.01015.13
7.1.250.0200.01114.68
7.1.240.0220.00814.55
7.1.230.0280.00314.67
7.1.220.0250.00714.70
7.1.210.0200.01114.70
7.1.200.0150.00914.95
7.1.190.0260.00514.65
7.1.180.0220.00814.56
7.1.170.0270.00414.72
7.1.160.0440.00715.95
7.1.150.0380.00615.81
7.1.140.0650.01015.88
7.1.130.0420.00915.80
7.1.120.1520.01015.87
7.1.110.1580.01015.61
7.1.100.1010.00815.62
7.1.90.0540.01015.53
7.1.80.0620.01015.53
7.1.70.1030.00914.95
7.1.60.1050.01025.73
7.1.50.0910.01025.58
7.1.40.0650.01325.30
7.1.30.0590.01125.43
7.1.20.0540.01225.54
7.1.10.0840.00814.70
7.1.00.0740.00814.75
7.0.330.0220.00814.25
7.0.320.0190.00814.40
7.0.310.0220.00814.25
7.0.300.0200.01114.27
7.0.290.0420.00915.57
7.0.280.0260.00614.47
7.0.270.0470.00815.61
7.0.260.2080.01115.68
7.0.250.0590.00815.29
7.0.240.0880.01015.29
7.0.230.0990.00915.22
7.0.220.1500.01015.30
7.0.210.0850.00814.54
7.0.200.0550.01014.64
7.0.190.0940.01014.65
7.0.180.0780.00914.37
7.0.170.0620.00914.39
7.0.160.0660.00714.43
7.0.150.0690.00914.49
7.0.140.0700.00714.43
7.0.130.0780.00714.45
7.0.120.0670.00814.48
7.0.110.0560.00714.42
7.0.100.0770.00814.31
7.0.90.0410.00814.38
7.0.80.0850.01114.36
7.0.70.0620.00814.34
7.0.60.0760.00814.41
7.0.50.0740.01014.46
7.0.40.0840.01214.49
7.0.30.0870.00914.56
7.0.20.0630.01214.49
7.0.10.1060.01114.50
7.0.00.0710.01214.46
5.6.400.0160.01015.16
5.6.390.0150.00915.09
5.6.380.0160.00915.21
5.6.370.0180.00815.07
5.6.360.0140.01415.17
5.6.350.0150.01515.18
5.6.340.0200.00815.20
5.6.330.0120.01715.20
5.6.320.0180.01015.14
5.6.310.0190.00815.08
5.6.300.0170.04318.51
5.6.290.0180.03818.38
5.6.280.0120.04218.48
5.6.270.0160.03818.47
5.6.260.0160.04218.64
5.6.250.0170.03618.50
5.6.240.0170.04018.59
5.6.230.0140.03918.54
5.6.220.0180.04418.48
5.6.210.0180.04018.50
5.6.200.0180.04118.48
5.6.190.0170.04818.55
5.6.180.0190.04318.48
5.6.170.0210.03818.47
5.6.160.0190.04318.50
5.6.150.0180.03718.52
5.6.140.0200.04318.50
5.6.130.0150.04518.45
5.6.120.0210.04518.56
5.6.110.0190.04718.56
5.6.100.0160.04318.51
5.6.90.0150.04018.43
5.6.80.0150.04518.09
5.6.70.0160.03818.11
5.6.60.0180.04018.10
5.6.50.0180.03818.05
5.6.40.0150.04118.07
5.6.30.0160.04518.08
5.6.20.0170.03718.16
5.6.10.0160.03818.13
5.6.00.0170.03718.16

preferences:
59.57 ms | 401 KiB | 5 Q