3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump( mb_convert_encoding( mb_convert_kana(mb_convert_encoding("アイウエオ", "JIS", "UTF-8"), "mM", "JIS") ,"UTF-8", "JIS") );

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)
8.4.20.0140.00718.12
8.4.10.0170.00323.71
8.3.150.0090.00917.24
8.3.140.0110.00816.59
8.3.130.0070.00318.70
8.3.120.0000.00920.85
8.3.110.0000.00820.94
8.3.100.0150.00316.68
8.3.90.0120.00426.77
8.3.80.0060.00616.88
8.3.70.0110.00416.58
8.3.60.0140.00716.63
8.3.50.0100.00320.16
8.3.40.0120.00320.13
8.3.30.0160.00318.84
8.3.20.0040.00424.18
8.3.10.0080.00024.66
8.3.00.0050.00326.16
8.2.270.0030.00517.32
8.2.260.0070.00716.77
8.2.250.0060.01018.80
8.2.240.0060.01217.32
8.2.230.0060.00322.58
8.2.220.0060.00324.06
8.2.210.0110.00426.77
8.2.200.0110.00718.41
8.2.190.0170.00017.13
8.2.180.0100.01025.92
8.2.170.0070.00719.04
8.2.160.0100.00322.96
8.2.150.0080.00025.66
8.2.140.0050.00224.66
8.2.130.0040.00426.16
8.2.120.0070.00721.07
8.2.110.0050.00522.41
8.2.100.0080.00417.97
8.2.90.0050.00518.00
8.2.80.0040.00419.03
8.2.70.0000.00817.88
8.2.60.0040.00417.88
8.2.50.0090.00418.87
8.2.40.0080.00018.03
8.2.30.0080.00018.24
8.2.20.0070.00020.61
8.2.10.0040.00418.23
8.2.00.0070.00019.24
8.1.310.0090.00918.60
8.1.300.0150.00418.35
8.1.290.0090.00030.84
8.1.280.0120.00325.92
8.1.270.0050.00224.66
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0090.00024.04
8.1.230.0130.00319.29
8.1.220.0060.00317.78
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0040.00417.35
8.1.180.0000.00818.10
8.1.170.0040.00418.77
8.1.160.0000.00719.00
8.1.150.0030.00618.67
8.1.140.0080.00017.45
8.1.130.0110.00417.50
8.1.120.0050.01017.48
8.1.110.0120.00617.51
8.1.100.0110.00417.52
8.1.90.0140.00317.55
8.1.80.0100.00717.61
8.1.70.0130.00417.44
8.1.60.0100.00917.69
8.1.50.0130.00317.64
8.1.40.0180.00017.74
8.1.30.0190.00017.71
8.1.20.0110.00817.66
8.1.10.0120.00617.57
8.1.00.0100.00817.43
8.0.300.0070.00018.77
8.0.290.0040.00416.63
8.0.280.0000.00720.23
8.0.270.0030.00317.98
8.0.260.0110.00316.66
8.0.250.0110.00316.73
8.0.240.0090.00616.73
8.0.230.0160.00016.82
8.0.220.0070.00716.74
8.0.210.0100.00716.75
8.0.200.0120.00416.79
8.0.190.0130.00416.71
8.0.180.0090.00616.88
8.0.170.0110.00616.89
8.0.160.0100.00616.77
8.0.150.0110.00416.78
8.0.140.0000.01516.74
8.0.130.0090.00716.71
8.0.120.0050.01016.74
8.0.110.0100.00616.67
8.0.100.0050.01016.75
8.0.90.0120.00416.68
8.0.80.0000.01516.75
8.0.70.0090.00516.80
8.0.60.0130.00216.72
8.0.50.0120.00416.77
8.0.30.0120.00216.79
8.0.20.0110.00216.69
8.0.10.0110.00416.78
7.4.330.0100.00315.88
7.4.320.0160.00016.50
7.4.300.0080.00816.47
7.4.290.0100.00516.39
7.4.280.0080.00416.46
7.4.270.0130.00416.34
7.4.260.0170.00016.38
7.4.250.0110.00716.50
7.4.240.0080.00816.44
7.4.230.0080.00816.57
7.4.220.0140.00016.50
7.4.210.0150.00016.44
7.4.200.0120.00316.41
7.4.190.0090.00616.52
7.4.180.0130.00016.37
7.4.160.0080.00816.46
7.4.150.0080.00416.51
7.4.140.0130.00016.06
7.4.130.0110.00316.21
7.4.120.0060.00616.27
7.4.110.0090.00316.09
7.4.100.0080.00016.46
7.4.90.0000.00816.19
7.4.80.0040.00416.30
7.4.70.0080.00016.24
7.4.60.0000.00816.27
7.4.50.0050.00516.19
7.4.40.0050.00516.02
7.4.30.0060.00316.20
7.4.20.0000.01115.88
7.4.10.0060.00616.11
7.4.00.0000.01016.22

preferences:
57.32 ms | 403 KiB | 5 Q