3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = "\x2c\x0a"; var_dump($test); var_dump(mb_convert_encoding($test, 'UTF-7', 'UTF-8')); var_dump(mb_convert_encoding($test, 'UCS-2', 'UTF-8')); var_dump(mb_detect_encoding($test, ['UTF-7'])); var_dump(mb_detect_encoding($test));

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)
8.3.60.0110.00418.31
8.3.50.0100.00318.16
8.3.40.0040.01118.67
8.3.30.0110.00418.96
8.3.20.0090.00920.21
8.3.10.0030.00523.53
8.3.00.0100.00017.13
8.2.180.0120.00316.63
8.2.170.0110.00322.96
8.2.160.0070.00720.39
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0040.00422.23
8.2.110.0180.00422.31
8.2.100.0090.00318.03
8.2.90.0050.00319.17
8.2.80.0080.00017.97
8.2.70.0030.00617.63
8.2.60.0050.00517.93
8.2.50.0000.00818.07
8.2.40.0040.00419.82
8.2.30.0040.00417.94
8.2.20.0040.00417.66
8.2.10.0000.00818.17
8.2.00.0000.00917.61
8.1.280.0140.00725.92
8.1.270.0030.00623.73
8.1.260.0000.00826.35
8.1.250.0080.00028.09
8.1.240.0090.00022.14
8.1.230.0070.00417.70
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0030.00717.36
8.1.190.0050.00317.23
8.1.180.0070.00018.10
8.1.170.0080.00018.43
8.1.160.0040.00422.01
8.1.150.0050.00218.87
8.1.140.0000.00717.36
8.1.130.0030.00517.78
8.1.120.0000.00717.37
8.1.110.0070.00017.42
8.1.100.0040.00417.40
8.1.90.0040.00417.41
8.1.80.0000.00717.39
8.1.70.0000.00717.37
8.1.60.0040.00417.59
8.1.50.0040.00417.50
8.1.40.0040.00417.54
8.1.30.0030.00617.65
8.1.20.0000.00717.65
8.1.10.0040.00417.40
8.1.00.0040.00417.41
8.0.300.0070.00018.77
8.0.290.0000.00816.75
8.0.280.0030.00318.44
8.0.270.0050.00517.25
8.0.260.0000.00717.29
8.0.250.0030.00316.82
8.0.240.0030.00316.99
8.0.230.0000.00716.86
8.0.220.0070.00016.95
8.0.210.0060.00016.89
8.0.200.0100.00516.99
8.0.190.0000.00716.99
8.0.180.0050.00216.80
8.0.170.0070.00016.98
8.0.160.0070.00016.92
8.0.150.0000.00716.86
8.0.140.0040.00416.86
8.0.130.0060.00013.40
8.0.120.0050.00316.84
8.0.110.0080.00016.88
8.0.100.0070.00016.79
8.0.90.0040.00416.92
8.0.80.0150.00316.86
8.0.70.0040.00416.82
8.0.60.0100.00016.83
8.0.50.0030.00516.84
8.0.30.0080.01116.99
8.0.20.0150.00517.40
8.0.10.0000.00816.82
8.0.00.0070.01016.70
7.4.330.0060.00015.03
7.4.320.0030.00316.43
7.4.300.0000.00816.60
7.4.290.0000.00716.63
7.4.280.0030.00516.57
7.4.270.0000.00716.52
7.4.260.0030.00316.58
7.4.250.0000.00816.52
7.4.240.0020.00616.50
7.4.230.0040.00416.43
7.4.220.0060.01316.63
7.4.210.0070.00716.45
7.4.200.0000.00816.63
7.4.160.0090.01216.57
7.4.150.0160.00317.40
7.4.140.0130.00517.86
7.4.130.0110.00916.38
7.4.120.0100.00716.47
7.4.110.0050.02516.51
7.4.100.0140.00316.53
7.4.90.0090.00916.48
7.4.80.0040.01919.39
7.4.70.0060.00916.45
7.4.60.0090.00616.23
7.4.50.0040.00416.43
7.4.40.0030.01216.49
7.4.30.0080.00816.40
7.4.00.0110.00414.54
7.3.330.0050.00012.97
7.3.320.0060.00013.17
7.3.310.0000.00716.20
7.3.300.0030.00316.18
7.3.290.0140.00016.24
7.3.280.0100.00816.24
7.3.270.0120.00617.40
7.3.260.0070.01116.18
7.3.250.0110.00716.28
7.3.240.0090.00916.38
7.3.230.0160.00716.39
7.3.210.0090.01016.50
7.3.200.0130.01319.39
7.3.190.0120.00916.32
7.3.180.0090.00616.36
7.3.170.0080.00816.27
7.3.160.0030.01416.32
7.3.10.0040.00816.26
7.3.00.0000.01016.25
7.2.330.0110.00716.47
7.2.320.0100.01016.53
7.2.310.0030.01316.39
7.2.300.0090.00816.24
7.2.290.0070.01016.27
7.2.130.0070.01016.52
7.2.120.0120.00616.41
7.2.110.0190.00716.05
7.2.100.0000.01516.30
7.2.90.0050.00516.58
7.2.80.0080.00816.73
7.2.70.0120.00616.32
7.2.60.0070.00716.25
7.2.50.0040.01116.11
7.2.40.0080.00516.40
7.2.30.0030.01016.55
7.2.20.0110.00916.08
7.2.10.0060.00916.35
7.2.00.0050.01218.01
7.1.250.0080.00815.44
7.1.100.0000.01517.78
7.1.70.0790.00715.13
7.1.60.0060.01619.32
7.1.50.0140.00317.05
7.1.00.0070.08722.33
7.0.200.0040.00416.70
7.0.140.0030.06722.12
7.0.60.0100.07020.08
7.0.50.0170.07717.85
7.0.40.0030.08020.12
7.0.30.0570.06720.30
7.0.20.0370.07720.33
7.0.10.0300.08020.17
7.0.00.0100.07020.19
5.6.280.0100.06720.88
5.6.210.0000.04320.62
5.6.200.0030.06018.16
5.6.190.0030.04320.77
5.6.180.2770.04020.41
5.6.170.0270.08320.49
5.6.160.0170.07320.49
5.6.150.0100.08018.15
5.6.140.0100.06318.21
5.6.130.0070.08318.18
5.6.120.0130.05021.03
5.6.110.0130.04320.88
5.6.100.0130.03320.88
5.6.90.0170.07020.98
5.6.80.0030.08320.50
5.6.70.4730.03320.40
5.5.350.0330.06320.40
5.5.340.0170.07017.98
5.5.330.0170.04020.47
5.5.320.0230.05320.18
5.5.310.0270.06320.32
5.5.300.0200.04318.02
5.5.290.0030.06717.98
5.5.280.0070.04020.86
5.5.270.0030.04720.87
5.5.260.0070.04320.87
5.5.250.0200.07720.77
5.5.240.0170.02720.15
5.4.450.0330.03719.28
5.4.440.0870.05019.36
5.4.430.0630.06019.22
5.4.420.0700.00019.25
5.4.410.0630.00019.20
5.4.400.0730.00019.16
5.4.390.0630.00019.16
5.4.380.0670.00018.96
5.4.370.0630.00019.07
5.4.360.0700.00019.26
5.4.350.0670.00019.18
5.4.340.0060.04311.96
5.4.320.0070.03812.45
5.4.310.0060.04012.45
5.4.300.0050.04012.45
5.4.290.0080.03712.45
5.4.280.0070.03612.34
5.4.270.0080.04112.35
5.4.260.0060.04112.34
5.4.250.0080.03912.34
5.4.240.0030.04612.34
5.4.230.0070.03812.34
5.4.220.0050.03712.34
5.4.210.0090.04112.34
5.4.200.0070.04612.34
5.4.190.0020.04812.34
5.4.180.0080.04012.33
5.4.170.0110.03712.34
5.4.160.0040.03912.34
5.4.150.0090.04112.34
5.4.140.0060.04312.02
5.4.130.0060.03712.01
5.4.120.0040.04211.96
5.4.110.0050.04311.96
5.4.100.0050.03911.96
5.4.90.0070.04011.96
5.4.80.0090.03611.96
5.4.70.0050.03711.96
5.4.60.0050.03611.96
5.4.50.0070.03511.96
5.4.40.0050.03511.95
5.4.30.0040.03911.94
5.4.20.0060.03611.95
5.4.10.0070.03211.95
5.4.00.0090.03211.44
5.3.290.0040.04012.80
5.3.280.0070.04212.70
5.3.270.0060.03812.72
5.3.260.0100.04312.72
5.3.250.0070.03812.72
5.3.240.0060.03912.71
5.3.230.0060.03712.71
5.3.220.0070.03612.68
5.3.210.0070.03812.68
5.3.200.0080.03512.68
5.3.190.0040.04112.68
5.3.180.0040.04012.67
5.3.170.0040.03912.66
5.3.160.0050.03712.67
5.3.150.0060.03612.67
5.3.140.0050.03712.66
5.3.130.0080.04112.66
5.3.120.0070.03812.66
5.3.110.0050.03912.66
5.3.100.0070.03512.12
5.3.90.0070.03812.08
5.3.80.0040.04012.07
5.3.70.0010.04112.07
5.3.60.0080.03312.06
5.3.50.0060.03912.00
5.3.40.0060.03612.00
5.3.30.0050.04011.95
5.3.20.0060.03511.73
5.3.10.0060.04411.70
5.3.00.0060.03911.69
5.2.170.0050.0319.19
5.2.160.0060.0399.18
5.2.150.0080.0369.18
5.2.140.0070.0339.18
5.2.130.0070.0329.14
5.2.120.0060.0339.14
5.2.110.0020.0339.15
5.2.100.0020.0349.14
5.2.90.0070.0309.14
5.2.80.0040.0339.14
5.2.70.0080.0399.14
5.2.60.0070.0319.09
5.2.50.0080.0349.07
5.2.40.0110.0539.04
5.2.30.0050.0699.01
5.2.20.0040.0759.00
5.2.10.0120.1008.93
5.2.00.0070.0418.78
5.1.60.0120.0488.07
5.1.50.0160.0468.07
5.1.40.0070.0328.05
5.1.30.0060.0328.39
5.1.20.0070.0278.42
5.1.10.0040.0288.14
5.1.00.0040.0278.15
5.0.50.0030.0216.63
5.0.40.0030.0236.49
5.0.30.0050.0296.30
5.0.20.0020.0206.27
5.0.10.0030.0206.24
5.0.00.0050.0296.23
4.4.90.0030.0194.78
4.4.80.0060.0114.75
4.4.70.0010.0174.76
4.4.60.0030.0154.75
4.4.50.0020.0174.77
4.4.40.0040.0244.70
4.4.30.0070.0134.76
4.4.20.0030.0204.84
4.4.10.0040.0144.85
4.4.00.0040.0244.76
4.3.110.0040.0144.67
4.3.100.0010.0214.67
4.3.90.0010.0164.63
4.3.80.0010.0264.58
4.3.70.0030.0164.63
4.3.60.0010.0174.62
4.3.50.0030.0164.62
4.3.40.0020.0254.54
4.3.30.0070.0333.29
4.3.20.0030.0163.27
4.3.10.0030.0153.22
4.3.00.0070.01713.37

preferences:
48.64 ms | 400 KiB | 5 Q