3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = 'абв'; echo mb_convert_encoding($str, 'CP1251', '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)
8.3.40.0040.01118.85
8.3.30.0120.00419.00
8.3.20.0040.00420.20
8.3.10.0150.00020.36
8.3.00.0050.00319.00
8.2.170.0090.00922.96
8.2.160.0070.00720.38
8.2.150.0080.00024.18
8.2.140.0100.01024.66
8.2.130.0040.00426.16
8.2.120.0050.00322.36
8.2.110.0090.00020.78
8.2.100.0080.00417.97
8.2.90.0040.00419.31
8.2.80.0040.00417.97
8.2.70.0060.00317.63
8.2.60.0050.00318.18
8.2.50.0040.00418.10
8.2.40.0000.00818.41
8.2.30.0030.00718.14
8.2.20.0000.00717.77
8.2.10.0050.00318.05
8.2.00.0050.00317.84
8.1.270.0000.00824.04
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0050.00522.20
8.1.230.0070.00317.89
8.1.220.0030.00617.76
8.1.210.0000.00818.77
8.1.200.0050.00417.61
8.1.190.0030.00517.48
8.1.180.0000.00818.10
8.1.170.0040.00418.63
8.1.160.0040.00422.20
8.1.150.0000.00718.84
8.1.140.0040.00417.57
8.1.130.0000.00717.82
8.1.120.0030.00417.64
8.1.110.0050.00217.63
8.1.100.0000.00717.63
8.1.90.0050.00317.49
8.1.80.0040.00417.47
8.1.70.0000.00717.46
8.1.60.0040.00417.68
8.1.50.0000.00817.56
8.1.40.0040.00417.51
8.1.30.0040.00417.65
8.1.20.0060.00317.76
8.1.10.0050.00317.58
8.1.00.0040.00417.62
8.0.300.0040.00418.77
8.0.290.0040.00416.88
8.0.280.0040.00418.61
8.0.270.0070.00017.42
8.0.260.0040.00417.29
8.0.250.0030.00316.95
8.0.240.0000.00616.95
8.0.230.0050.00216.95
8.0.220.0030.00316.98
8.0.210.0030.00316.85
8.0.200.0060.00016.99
8.0.190.0000.00916.95
8.0.180.0040.00416.94
8.0.170.0050.00316.86
8.0.160.0050.00216.84
8.0.150.0000.00716.86
8.0.140.0050.00216.81
8.0.130.0080.00013.34
8.0.120.0030.00516.87
8.0.110.0040.00416.86
8.0.100.0070.00017.00
8.0.90.0040.00416.90
8.0.80.0100.00716.95
8.0.70.0040.00416.84
8.0.60.0080.00016.93
8.0.50.0040.00416.98
8.0.30.0100.01017.21
8.0.20.0150.00817.40
8.0.10.0040.00417.04
8.0.00.0090.01116.77
7.4.330.0050.00015.06
7.4.320.0070.00016.66
7.4.300.0030.00316.63
7.4.290.0000.00716.59
7.4.280.0030.00616.56
7.4.270.0070.00016.67
7.4.260.0040.00416.63
7.4.250.0040.00416.57
7.4.240.0030.00316.53
7.4.230.0030.00316.65
7.4.220.0000.01716.77
7.4.210.0080.00616.61
7.4.200.0000.00716.46
7.4.160.0060.00916.59
7.4.150.0090.00917.40
7.4.140.0110.01017.86
7.4.130.0090.00816.65
7.4.120.0080.00816.54
7.4.110.0100.00616.52
7.4.100.0100.00716.33
7.4.90.0030.01316.43
7.4.80.0060.01019.39
7.4.70.0060.01116.68
7.4.60.0140.00316.48
7.4.50.0030.00616.46
7.4.40.0090.00916.46
7.4.30.0130.00316.66
7.4.00.0070.00815.00
7.3.330.0030.00313.18
7.3.320.0030.00313.14
7.3.310.0040.00416.34
7.3.300.0030.00316.29
7.3.290.0140.00016.21
7.3.280.0090.00816.24
7.3.270.0090.00917.40
7.3.260.0060.01216.59
7.3.250.0090.00916.51
7.3.240.0040.01716.57
7.3.230.0060.01216.39
7.3.210.0030.01316.44
7.3.200.0110.00516.31
7.3.190.0100.00616.35
7.3.180.0070.01016.45
7.3.170.0160.00616.49
7.3.160.0000.01616.42
7.3.120.0040.01515.09
7.3.110.0110.00314.80
7.3.100.0030.01515.04
7.3.90.0060.01315.05
7.3.80.0120.00314.91
7.3.70.0000.00914.60
7.3.60.0030.01314.71
7.3.50.0120.00314.96
7.3.40.0030.01014.93
7.3.30.0060.00614.79
7.3.20.0060.00916.68
7.3.10.0120.00516.63
7.3.00.0100.00516.51
7.2.330.0090.00816.68
7.2.320.0070.01016.66
7.2.310.0130.00716.41
7.2.300.0060.01016.43
7.2.290.0030.01416.34
7.2.250.0060.01215.10
7.2.240.0000.02114.93
7.2.230.0100.00715.09
7.2.220.0180.00314.71
7.2.210.0090.00614.73
7.2.200.0000.01214.96
7.2.190.0040.01115.08
7.2.180.0070.00714.99
7.2.170.0000.01414.81
7.2.130.0120.00316.82
7.2.120.0060.01216.38
7.2.110.0040.00816.73
7.2.100.0120.00516.61
7.2.90.0130.00416.70
7.2.80.0120.00516.62
7.2.70.0080.00816.80
7.2.60.0120.00416.67
7.2.50.0150.00616.91
7.2.40.0090.00916.71
7.2.30.0120.00516.79
7.2.20.0090.01116.61
7.2.10.0060.01016.88
7.2.00.0060.00817.50
7.1.330.0100.00615.93
7.1.320.0030.01415.93
7.1.310.0030.01015.91
7.1.300.0030.00615.86
7.1.290.0090.00615.67
7.1.280.0000.01115.58
7.1.270.0100.00315.70
7.1.260.0100.00316.11
7.1.250.0120.00615.66
7.1.240.0080.00015.88
7.1.230.0090.00315.87
7.1.220.0060.00615.80
7.1.210.0070.00715.65
7.1.200.0050.00615.89
7.1.190.0060.00615.92
7.1.180.0000.01215.83
7.1.170.0030.00715.59
7.1.160.0030.00915.81
7.1.150.0090.00615.77
7.1.140.0070.00715.75
7.1.130.0030.00615.90
7.1.120.0070.00315.88
7.1.110.0030.01015.78
7.1.100.0070.00517.14
7.1.90.0000.01215.87
7.1.80.0000.01315.80
7.1.70.0070.00716.34
7.1.60.0060.00517.52
7.1.50.0050.01216.49
7.1.40.0000.00915.68
7.1.30.0060.00615.86
7.1.20.0070.00715.57
7.1.10.0000.01115.79
7.1.00.0020.04419.05
7.0.320.0000.01515.39
7.0.310.0090.00315.45
7.0.300.0050.00515.47
7.0.290.0000.00815.42
7.0.280.0030.00915.42
7.0.270.0040.00815.41
7.0.260.0030.00915.20
7.0.250.0100.00315.48
7.0.240.0000.00915.61
7.0.230.0000.01115.65
7.0.220.0050.00515.10
7.0.210.0030.00715.21
7.0.200.0020.00716.21
7.0.190.0080.00415.52
7.0.180.0030.01015.64
7.0.170.0030.00515.47
7.0.160.0080.00815.43
7.0.150.0000.00915.58
7.0.140.0060.04018.81
7.0.130.0060.00615.66
7.0.120.0090.00615.52
7.0.110.0040.01115.46
7.0.100.0070.00415.55
7.0.90.0060.00915.36
7.0.80.0030.01015.47
7.0.70.0000.01215.49
7.0.60.0050.03517.60
7.0.50.0070.02516.65
7.0.40.0030.04616.65
7.0.30.0230.02616.79
7.0.20.0160.04416.95
7.0.10.0050.02816.79
7.0.00.0080.01816.63
5.6.380.0070.00314.36
5.6.370.0070.00714.55
5.6.360.0030.01014.45
5.6.350.0100.00314.51
5.6.340.0090.00614.25
5.6.330.0090.00614.17
5.6.320.0070.00414.34
5.6.310.0000.01114.28
5.6.300.0090.00314.42
5.6.290.0070.00014.52
5.6.280.0050.04017.70
5.6.270.0040.00414.14
5.6.260.0060.00714.23
5.6.250.0000.01414.30
5.6.240.0040.00814.15
5.6.230.0030.00714.24
5.6.220.0080.00414.45
5.6.210.0080.02617.53
5.6.200.0110.04416.15
5.6.190.0020.03717.39
5.6.180.0150.03717.62
5.6.170.0120.03417.36
5.6.160.0080.02817.50
5.6.150.0050.03516.12
5.6.140.0100.04316.37
5.6.130.0100.04416.43
5.6.120.0080.02117.67
5.6.110.0070.04917.63
5.6.100.0050.04417.81
5.6.90.0050.02317.60
5.6.80.0060.04517.28
5.6.70.0100.00314.16
5.6.60.0070.00714.38
5.6.50.0040.00713.90
5.6.40.0100.00314.42
5.6.30.0030.01014.03
5.6.20.0070.00714.07
5.6.10.0060.00914.21
5.6.00.0040.01114.15
5.5.380.0060.00311.27
5.5.370.0000.01011.27
5.5.360.0000.00711.27
5.5.350.0130.03615.89
5.5.340.0080.03814.60
5.5.330.0140.03715.85
5.5.320.0120.04015.80
5.5.310.0150.03015.85
5.5.300.0070.04214.62
5.5.290.0080.02014.61
5.5.280.0080.04116.09
5.5.270.0030.03416.11
5.5.260.0050.04116.07
5.5.250.0050.02216.01
5.5.240.0130.03015.67
5.5.230.0070.00311.27
5.5.220.0040.00411.27
5.5.210.0040.00711.27
5.5.200.0050.00311.27
5.5.190.0120.00011.27
5.5.180.0000.00711.27
5.5.170.0060.00614.36
5.5.160.0090.00311.27
5.5.150.0080.00411.27
5.5.140.0030.00711.27
5.5.130.0100.00011.27
5.5.120.0040.00411.27
5.5.110.0000.01111.27
5.5.100.0100.00011.27
5.5.90.0060.00311.27
5.5.80.0000.01011.27
5.5.70.0000.00911.27
5.5.60.0060.00311.27
5.5.50.0070.00411.27
5.5.40.0080.00311.27
5.5.30.0040.00711.27
5.5.20.0050.00511.27
5.5.10.0070.00311.27
5.5.00.0070.00311.27
5.4.450.0150.02515.19
5.4.440.0470.03015.36
5.4.430.0480.02815.27
5.4.420.0350.00315.39
5.4.410.0330.00415.40
5.4.400.0360.00115.06
5.4.390.0300.00415.16
5.4.380.0350.00415.19
5.4.370.0380.00215.17
5.4.360.0420.00215.17
5.4.350.0350.00215.18
5.4.340.0380.00315.17
5.4.330.0030.00611.27
5.4.320.0050.01911.86
5.4.310.0040.02311.87
5.4.300.0050.02111.86
5.4.290.0070.02011.86
5.4.280.0070.01911.81
5.4.270.0050.02011.81
5.4.260.0070.02011.81
5.4.250.0070.02011.81
5.4.240.0050.02311.81
5.4.230.0070.02511.80
5.4.220.0040.02211.80
5.4.210.0050.02311.80
5.4.200.0020.02511.80
5.4.190.0060.01911.80
5.4.180.0040.02111.80
5.4.170.0040.02111.81
5.4.160.0070.01911.80
5.4.150.0040.02411.80
5.4.140.0050.02211.65
5.4.130.0040.02111.64
5.4.120.0020.02211.62
5.4.110.0040.02311.62
5.4.100.0040.02111.62
5.4.90.0100.01811.62
5.4.80.0030.02211.62
5.4.70.0030.02011.61
5.4.60.0060.02011.61
5.4.50.0030.02111.61
5.4.40.0020.02511.61
5.4.30.0020.02411.61
5.4.20.0070.01711.61
5.4.10.0020.02211.61
5.4.00.0030.02211.35
5.3.290.0050.02212.04
5.3.280.0030.02111.99
5.3.270.0040.02311.99
5.3.260.0020.02512.00
5.3.250.0060.02111.99
5.3.240.0040.02111.99
5.3.230.0060.02011.99
5.3.220.0060.02111.97
5.3.210.0040.02211.97
5.3.200.0040.02111.98
5.3.190.0060.02011.97
5.3.180.0060.02111.97
5.3.170.0050.02111.97
5.3.160.0060.02011.97
5.3.150.0060.02011.97
5.3.140.0060.02011.96
5.3.130.0040.02311.96
5.3.120.0060.02211.96
5.3.110.0050.02011.96
5.3.100.0020.02311.70
5.3.90.0020.02411.68
5.3.80.0040.02111.67
5.3.70.0090.01711.67
5.3.60.0080.01711.67
5.3.50.0050.02111.63
5.3.40.0040.02211.64
5.3.30.0020.02111.61
5.3.20.0040.02211.49
5.3.10.0040.02311.48
5.3.00.0070.02211.47
5.2.170.0050.02110.22
5.2.160.0060.02110.22
5.2.150.0070.01510.22
5.2.140.0050.01810.22
5.2.130.0050.02110.20
5.2.120.0060.01610.20
5.2.110.0060.01410.21
5.2.100.0060.01810.21
5.2.90.0050.01410.20
5.2.80.0050.02010.20
5.2.70.0040.02110.20
5.2.60.0060.01610.17
5.2.50.0050.01810.16
5.2.40.0040.01710.15
5.2.30.0040.02410.14
5.2.20.0080.01310.13
5.2.10.0050.01610.09
5.2.00.0020.01710.02
5.1.60.0040.0149.66
5.1.50.0050.0139.66
5.1.40.0020.0149.65
5.1.30.0060.0129.83
5.1.20.0070.0139.84
5.1.10.0060.0139.70
5.1.00.0040.0159.70
5.0.50.0000.0158.94
5.0.40.0050.0098.87
5.0.30.0010.0218.78
5.0.20.0020.0128.76
5.0.10.0030.0118.75
5.0.00.0030.0158.75
4.4.90.0020.0098.03
4.4.80.0010.0108.01
4.4.70.0060.0068.01
4.4.60.0040.0088.01
4.4.50.0020.0118.02
4.4.40.0020.0197.99
4.4.30.0020.0098.01
4.4.20.0030.0108.06
4.4.10.0030.0098.06
4.4.00.0040.0138.01
4.3.110.0030.0107.97
4.3.100.0030.0097.97
4.3.90.0020.0087.95
4.3.80.0010.0157.93
4.3.70.0040.0077.95
4.3.60.0020.0097.95
4.3.50.0020.0097.95
4.3.40.0030.0137.90
4.3.30.0020.0097.27
4.3.20.0000.0117.26
4.3.10.0030.0107.24
4.3.00.0020.00813.89

preferences:
55.68 ms | 400 KiB | 5 Q