3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "Hemanth"; $encoding = mb_convert_encoding($str,'UTF-16LE', 'UTF-8'); echo $encoding; ?>

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)
8.3.40.0040.01118.71
8.3.30.0110.00418.93
8.3.20.0000.00820.13
8.3.10.0040.00423.55
8.3.00.0080.00019.07
8.2.170.0100.00322.96
8.2.160.0070.00722.08
8.2.150.0060.00324.18
8.2.140.0050.00324.66
8.2.130.0000.00726.16
8.2.120.0000.00819.55
8.2.110.0070.00322.11
8.2.100.0080.00417.72
8.2.90.0030.00719.14
8.2.80.0040.00417.97
8.2.70.0040.00917.23
8.2.60.0060.00318.05
8.2.50.0040.00418.07
8.2.40.0040.00418.16
8.2.30.0040.00418.02
8.2.20.0040.00417.65
8.2.10.0040.00418.20
8.2.00.0040.00417.68
8.1.270.0000.00818.77
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0060.00324.01
8.1.230.0070.00418.97
8.1.220.0060.00317.79
8.1.210.0080.00018.77
8.1.200.0090.00017.25
8.1.190.0030.00517.35
8.1.180.0030.00619.13
8.1.170.0080.00018.59
8.1.160.0000.00718.90
8.1.150.0070.00018.89
8.1.140.0000.00817.44
8.1.130.0070.00017.75
8.1.120.0000.00817.54
8.1.110.0000.00817.40
8.1.100.0030.00417.33
8.1.90.0000.00717.46
8.1.80.0030.00317.44
8.1.70.0000.00717.39
8.1.60.0050.00317.59
8.1.50.0030.00517.54
8.1.40.0040.00417.57
8.1.30.0030.00517.63
8.1.20.0040.00417.63
8.1.10.0000.00717.59
8.1.00.0000.00717.49
8.0.300.0040.00420.64
8.0.290.0070.00017.18
8.0.280.0030.00318.42
8.0.270.0000.00717.28
8.0.260.0040.00417.18
8.0.250.0070.00016.91
8.0.240.0040.00416.88
8.0.230.0030.00316.94
8.0.220.0070.00016.76
8.0.210.0000.00716.87
8.0.200.0070.00016.89
8.0.190.0060.00316.85
8.0.180.0040.00416.95
8.0.170.0000.00716.95
8.0.160.0000.00716.89
8.0.150.0030.00516.88
8.0.140.0080.00016.91
8.0.130.0000.00613.32
8.0.120.0000.00816.86
8.0.110.0000.00716.91
8.0.100.0030.00516.80
8.0.90.0040.00416.85
8.0.80.0000.01516.86
8.0.70.0000.00716.95
8.0.60.0000.00716.76
8.0.50.0000.00716.98
8.0.30.0180.00317.01
8.0.20.0110.01017.40
8.0.10.0040.00416.73
8.0.00.0130.00416.89
7.4.330.0050.00015.03
7.4.320.0060.00016.50
7.4.300.0060.00016.47
7.4.290.0000.00716.55
7.4.280.0060.00316.60
7.4.270.0000.00716.41
7.4.260.0040.00416.35
7.4.250.0000.00716.46
7.4.240.0060.00216.55
7.4.230.0030.00316.41
7.4.220.0060.01316.60
7.4.210.0070.00816.63
7.4.200.0040.00416.69
7.4.160.0070.01016.50
7.4.150.0070.01017.40
7.4.140.0070.00917.86
7.4.130.0100.00716.46
7.4.120.0080.00916.48
7.4.110.0110.00616.32
7.4.100.0060.01016.61
7.4.90.0090.00616.36
7.4.80.0030.01319.39
7.4.70.0090.00916.66
7.4.60.0100.00616.42
7.4.50.0000.00916.45
7.4.40.0160.00016.46
7.4.30.0150.00616.50
7.4.00.0090.00614.89
7.3.330.0000.00513.00
7.3.320.0000.00613.12
7.3.310.0040.00416.12
7.3.300.0060.00016.26
7.3.290.0070.00816.26
7.3.280.0080.00816.27
7.3.270.0190.00317.40
7.3.260.0090.01516.42
7.3.250.0150.02116.38
7.3.240.0030.01316.51
7.3.230.0130.00316.39
7.3.210.0130.00716.20
7.3.200.0140.00719.39
7.3.190.0100.00616.52
7.3.180.0130.00316.50
7.3.170.0100.00716.48
7.3.160.0100.00516.21
7.3.10.0090.00616.30
7.3.00.0120.00315.91
7.2.330.0100.00716.54
7.2.320.0170.00316.50
7.2.310.0100.00816.59
7.2.300.0070.01716.51
7.2.290.0170.00616.56
7.2.130.0120.00616.78
7.2.120.0190.00816.63
7.2.110.0180.00916.52
7.2.100.0110.01116.60
7.2.90.0070.01016.66
7.2.80.0150.00616.43
7.2.70.0090.00916.45
7.2.60.0140.01116.34
7.2.50.0000.01316.68
7.2.40.0040.01516.64
7.2.30.0000.01716.46
7.2.20.0210.00016.67
7.2.10.0030.01216.55
7.2.00.0070.00518.05
7.1.250.0050.01015.39
7.1.100.0060.00818.15
7.1.70.0030.00617.11
7.1.60.0090.01519.22
7.1.50.0150.00616.38
7.1.00.0000.07722.35
7.0.200.0030.00616.72
7.0.140.0070.03022.11
7.0.60.0070.05719.92
7.0.50.0070.08017.66
7.0.40.0070.04020.20
7.0.30.0370.07020.34
7.0.20.0200.08320.19
7.0.10.0100.07020.15
7.0.00.0030.09020.01
5.6.280.0000.07721.04
5.6.210.0100.08020.46
5.6.200.0100.07718.12
5.6.190.0100.08320.77
5.6.180.0330.06720.28
5.6.170.0330.06720.71
5.6.160.0030.08020.62
5.6.150.0070.03718.12
5.6.140.0030.06018.10
5.6.130.0130.07318.09
5.6.120.0100.08020.89
5.6.110.0100.08321.13
5.6.100.0100.07321.03
5.6.90.0130.04721.07
5.6.80.0130.08020.39
5.5.350.0300.07320.38
5.5.340.0070.08017.99
5.5.330.0070.06720.21
5.5.320.0270.06720.23
5.5.310.0170.05320.12
5.5.300.0100.05018.02
5.5.290.0070.04017.92
5.5.280.0100.08020.89
5.5.270.0100.08320.78
5.5.260.0170.07320.88
5.5.250.0030.04020.55
5.5.240.0070.08020.34
5.4.450.0500.05019.48
5.4.440.0630.06019.22
5.4.430.0630.07319.51
5.4.420.0700.06319.63
5.4.410.0430.05019.54
5.4.400.0770.04719.13
5.4.390.0600.05319.19
5.4.380.0130.05718.68
5.4.370.0170.05318.58
5.4.360.0130.05718.73
5.4.350.0230.04718.78
5.4.340.0070.06318.79
5.4.320.0230.05318.65
5.4.310.0170.05318.56
5.4.300.0270.04318.49
5.4.290.0130.05318.51
5.4.280.0100.05718.68
5.4.270.0170.05018.71
5.4.260.0200.04718.68
5.4.250.0230.04718.77
5.4.240.0170.05318.58
5.4.230.0230.05018.71
5.4.220.0230.05318.73
5.4.210.0130.05718.61
5.4.200.0130.06016.50
5.4.190.0200.05318.69
5.4.180.0270.05718.67
5.4.170.0270.05018.68
5.4.160.0230.05318.57
5.4.150.0200.06018.58
5.4.140.0200.04716.20
5.4.130.0270.04016.16
5.4.120.0200.04716.22
5.4.110.0230.04316.16
5.4.100.0170.05316.30
5.4.90.0200.04716.24
5.4.80.0100.05716.22
5.4.70.0200.05016.11
5.4.60.0270.05316.27
5.4.50.0130.05316.21
5.4.40.0200.04716.16
5.4.30.0100.05316.21
5.4.20.0130.05316.17
5.4.10.0100.05716.00
5.4.00.0170.04715.75
5.3.290.0130.06014.63
5.3.280.0130.05314.48
5.3.270.0130.05714.69
5.3.260.0230.05314.58
5.3.250.0270.04014.70
5.3.240.0170.05314.61
5.3.230.0130.05714.69
5.3.220.0230.04314.65
5.3.210.0100.06314.46
5.3.200.0200.05314.61
5.3.190.0230.04314.54
5.3.180.0170.05014.46
5.3.170.0170.05014.47
5.3.160.0230.04314.61
5.3.150.0130.06014.47
5.3.140.0230.04314.52
5.3.130.0200.05314.62
5.3.120.0100.06014.53
5.3.110.0100.06014.57
5.3.100.0100.05714.13
5.3.90.0200.05014.02
5.3.80.0200.05014.09
5.3.70.0230.04313.98
5.3.60.0300.06013.98
5.3.50.0200.05013.94
5.3.40.0200.06014.04
5.3.30.0070.06013.83
5.3.20.0200.06013.68
5.3.10.0230.05313.62
5.3.00.0170.05013.54
5.2.170.0130.05011.13
5.2.160.0200.04011.12
5.2.150.0130.04311.10
5.2.140.0170.03711.17
5.2.130.0170.03711.15
5.2.120.0070.04711.09
5.2.110.0030.05311.01
5.2.100.0170.03711.04
5.2.90.0170.04011.07
5.2.80.0170.04011.01
5.2.70.0130.04011.05
5.2.60.0130.04011.10
5.2.50.0130.04311.17
5.2.40.0070.04711.04
5.2.30.0130.04011.02
5.2.20.0130.04010.91
5.2.10.0130.03710.84
5.2.00.0070.04710.77
5.1.60.0130.0409.98
5.1.50.0100.0379.96
5.1.40.0200.02310.02
5.1.30.0070.04010.37
5.1.20.0130.03710.48
5.1.10.0200.03010.13
5.1.00.0130.03310.11
5.0.50.0100.0278.60
5.0.40.0000.0338.42
5.0.30.0100.0408.32
5.0.20.0070.0308.23
5.0.10.0070.0278.22
5.0.00.0070.0408.13
4.4.90.0030.0275.88
4.4.80.0000.0275.81
4.4.70.0100.0275.84
4.4.60.0030.0335.86
4.4.50.0030.0235.86
4.4.40.0070.0335.90
4.4.30.0030.0235.82
4.4.20.0070.0205.91
4.4.10.0000.0275.93
4.4.00.0030.0405.88
4.3.110.0030.0235.87
4.3.100.0000.0275.79
4.3.90.0030.0235.82
4.3.80.0070.0375.80
4.3.70.0070.0205.87
4.3.60.0030.0235.82
4.3.50.0000.0275.79
4.3.40.0030.0375.75
4.3.30.0030.0234.53
4.3.20.0000.0274.62
4.3.10.0030.0234.50
4.3.00.0030.0277.76

preferences:
49.71 ms | 400 KiB | 5 Q