3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = "Hi Mr ["; var_dump($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)
8.3.60.0140.00318.30
8.3.50.0110.00721.04
8.3.40.0120.00318.36
8.3.30.0110.00418.85
8.3.20.0050.00320.16
8.3.10.0000.00823.66
8.3.00.0090.00019.01
8.2.180.0110.01116.38
8.2.170.0100.01022.96
8.2.160.0070.01020.53
8.2.150.0060.00324.18
8.2.140.0090.00024.66
8.2.130.0040.00426.16
8.2.120.0080.00022.29
8.2.110.0100.00020.47
8.2.100.0050.00518.09
8.2.90.0050.00319.09
8.2.80.0030.00517.97
8.2.70.0050.00317.63
8.2.60.0040.00417.93
8.2.50.0000.00818.07
8.2.40.0030.00517.93
8.2.30.0050.00318.08
8.2.20.0040.00417.79
8.2.10.0040.00417.99
8.2.00.0000.00817.74
8.1.280.0100.00725.92
8.1.270.0000.00823.97
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0050.00521.95
8.1.230.0080.00419.09
8.1.220.0090.00017.74
8.1.210.0060.00318.77
8.1.200.0110.00017.35
8.1.190.0080.00017.35
8.1.180.0080.00018.10
8.1.170.0000.00718.59
8.1.160.0030.00522.02
8.1.150.0040.00418.78
8.1.140.0040.00417.32
8.1.130.0080.00017.82
8.1.120.0040.00417.48
8.1.110.0040.00417.38
8.1.100.0040.00417.35
8.1.90.0000.00717.39
8.1.80.0030.00317.44
8.1.70.0030.00317.43
8.1.60.0060.00317.45
8.1.50.0030.00617.58
8.1.40.0040.00417.49
8.1.30.0000.00917.52
8.1.20.0000.00817.63
8.1.10.0020.00517.50
8.1.00.0050.00217.41
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0030.00318.48
8.0.270.0050.00317.16
8.0.260.0020.00517.25
8.0.250.0000.00716.86
8.0.240.0030.00516.95
8.0.230.0000.00716.95
8.0.220.0000.00716.88
8.0.210.0080.00016.76
8.0.200.0000.00616.94
8.0.190.0000.00916.85
8.0.180.0030.00516.81
8.0.170.0000.00716.89
8.0.160.0030.00316.78
8.0.150.0000.00716.87
8.0.140.0060.00316.66
8.0.130.0000.00513.27
8.0.120.0030.00516.75
8.0.110.0070.00016.91
8.0.100.0070.00016.84
8.0.90.0050.00216.89
8.0.80.0030.01816.82
8.0.70.0000.00716.95
8.0.60.0080.00016.75
8.0.50.0000.00816.75
8.0.30.0100.01417.04
8.0.20.0120.00817.40
8.0.10.0000.00716.76
8.0.00.0120.00516.66
7.4.330.0030.00315.09
7.4.320.0000.00916.53
7.4.300.0040.00416.59
7.4.290.0040.00416.60
7.4.280.0050.00316.61
7.4.270.0000.00716.61
7.4.260.0040.00416.41
7.4.250.0070.00016.37
7.4.240.0050.00216.52
7.4.230.0070.00016.54
7.4.220.0090.00916.65
7.4.210.0070.00716.64
7.4.200.0050.00316.61
7.4.160.0130.00316.33
7.4.150.0100.01317.40
7.4.140.0080.01017.86
7.4.130.0130.00316.50
7.4.120.0090.00816.41
7.4.110.0120.00616.50
7.4.100.0080.00816.25
7.4.90.0140.00416.45
7.4.80.0110.00719.39
7.4.70.0090.00816.43
7.4.60.0110.00616.41
7.4.50.0000.00816.47
7.4.40.0070.01016.41
7.4.30.0080.01216.16
7.4.00.0070.01214.82
7.3.330.0000.00613.11
7.3.320.0000.00613.09
7.3.310.0030.00316.21
7.3.300.0000.00616.06
7.3.290.0140.00716.32
7.3.280.0080.01016.17
7.3.270.0060.01217.40
7.3.260.0100.00616.41
7.3.250.0120.00616.49
7.3.240.0140.00716.40
7.3.230.0130.00416.39
7.3.210.0170.00016.27
7.3.200.0060.01719.39
7.3.190.0130.00816.14
7.3.180.0070.01016.10
7.3.170.0030.01216.46
7.3.160.0080.00816.09
7.3.120.0050.01214.64
7.3.110.0040.01014.97
7.3.100.0070.00714.70
7.3.90.0060.00914.80
7.3.80.0070.00714.65
7.3.70.0050.00914.63
7.3.60.0050.00714.74
7.3.50.0050.00814.65
7.3.40.0070.00714.75
7.3.30.0050.00814.61
7.3.20.0050.01216.56
7.3.10.0070.00716.59
7.3.00.0060.00816.53
7.2.330.0100.00716.39
7.2.320.0030.01616.41
7.2.310.0110.00516.33
7.2.300.0070.01016.60
7.2.290.0150.00916.38
7.2.250.0060.01314.58
7.2.240.0050.01015.05
7.2.230.0050.00814.74
7.2.220.0080.00714.94
7.2.210.0060.00914.61
7.2.200.0060.01114.84
7.2.190.0060.00814.71
7.2.180.0070.00914.92
7.2.170.0030.01314.89
7.2.160.0060.01714.63
7.2.150.0080.00816.77
7.2.140.0090.00616.41
7.2.130.0070.00716.88
7.2.120.0120.00316.91
7.2.110.0030.01316.63
7.2.100.0100.00616.46
7.2.90.0150.00416.78
7.2.80.0070.00716.77
7.2.70.0100.00716.50
7.2.60.0090.00616.75
7.2.50.0030.00916.57
7.2.40.0040.01116.63
7.2.30.0070.01016.64
7.2.20.0030.01516.84
7.2.10.0130.00716.73
7.2.00.0050.01017.86
7.1.330.0050.00815.87
7.1.320.0060.01015.79
7.1.310.0060.00815.73
7.1.300.0060.01015.71
7.1.290.0060.01015.65
7.1.280.0060.00915.74
7.1.270.0080.00815.62
7.1.260.0070.00715.73
7.1.250.0030.00915.80
7.1.100.0070.00418.16
7.1.70.0080.00017.05
7.1.60.0120.00317.22
7.1.50.0070.01316.93
7.1.00.0000.07722.45
7.0.200.0130.00316.70
7.0.140.0030.07322.21
7.0.70.5130.03319.95
7.0.60.0100.07719.90
7.0.50.0070.06317.77
7.0.40.0130.04720.29
7.0.30.0070.04020.00
7.0.20.0400.07020.16
7.0.10.0270.05019.96
7.0.00.0100.08720.07
5.6.280.0000.07720.92
5.6.210.0070.07720.55
5.6.200.0100.08318.22
5.6.190.0070.08720.60
5.6.180.0270.08020.38
5.6.170.0270.07020.48
5.6.160.0000.04320.40
5.6.150.0000.08318.15
5.6.140.0030.04018.14
5.6.130.0070.08718.10
5.6.120.0070.04021.13
5.6.110.0100.08320.95
5.6.100.0070.05320.99
5.6.90.0000.04321.02
5.6.80.0070.07720.43
5.6.70.0200.07720.49
5.5.350.0030.03720.40
5.5.340.0070.08317.89
5.5.330.0000.04320.16
5.5.320.0130.07720.29
5.5.310.0300.07020.24
5.5.300.0070.04018.01
5.5.290.0100.03717.92
5.5.280.0030.05320.87
5.5.270.0070.07020.88
5.5.260.0100.06320.75
5.5.250.0100.05720.57
5.5.240.0100.06720.21
5.4.450.1270.03019.58
5.4.440.0330.03719.13
5.4.430.0300.04019.25
5.4.420.0630.00019.29
5.4.410.0630.00019.39
5.4.400.0600.00019.20
5.4.390.0600.00019.15
5.4.380.0630.00018.95
5.4.370.0630.00019.25
5.4.360.0670.00018.92
5.4.350.0670.00018.95
5.4.340.0090.04011.96
5.4.320.0080.03412.45
5.4.310.0050.03912.45
5.4.300.0080.03412.45
5.4.290.0050.03912.45
5.4.280.0060.03512.34
5.4.270.0050.03612.35
5.4.260.0070.03512.34
5.4.250.0060.03612.34
5.4.240.0060.03812.35
5.4.230.0080.03812.34
5.4.220.0060.03512.34
5.4.210.0050.03712.34
5.4.200.0110.05312.34
5.4.190.0060.03912.34
5.4.180.0060.03812.34
5.4.170.0100.03912.35
5.4.160.0060.04212.34
5.4.150.0100.03512.34
5.4.140.0060.03912.02
5.4.130.0100.03512.01
5.4.120.0030.04211.96
5.4.110.0050.03711.96
5.4.100.0060.03611.96
5.4.90.0110.03711.96
5.4.80.0070.04211.96
5.4.70.0050.03511.96
5.4.60.0060.03411.96
5.4.50.0060.03711.96
5.4.40.0070.04011.95
5.4.30.0100.04611.95
5.4.20.0080.04311.95
5.4.10.0090.04911.95
5.4.00.0050.04211.43
5.3.290.0110.03912.80
5.3.280.0050.04512.71
5.3.270.0060.04512.73
5.3.260.0100.06212.72
5.3.250.0110.04812.72
5.3.240.0080.06012.71
5.3.230.0120.06412.70
5.3.220.0070.05312.68
5.3.210.0070.05312.68
5.3.200.0080.03912.68
5.3.190.0150.05012.68
5.3.180.0070.04212.68
5.3.170.0080.03612.67
5.3.160.0050.03712.67
5.3.150.0070.03612.68
5.3.140.0090.03412.66
5.3.130.0050.03912.66
5.3.120.0040.04012.66
5.3.110.0020.04212.66
5.3.100.0050.03712.12
5.3.90.0090.03312.08
5.3.80.0060.03612.07
5.3.70.0080.03312.08
5.3.60.0090.03412.06
5.3.50.0070.03912.00
5.3.40.0110.04712.00
5.3.30.0050.04411.95
5.3.20.0050.03911.73
5.3.10.0050.04511.70
5.3.00.0050.03611.68
5.2.170.0040.0309.19
5.2.160.0010.0359.19
5.2.150.0050.0359.19
5.2.140.0040.0329.18
5.2.130.0080.0269.14
5.2.120.0040.0319.14
5.2.110.0040.0309.15
5.2.100.0080.0309.14
5.2.90.0060.0349.14
5.2.80.0070.0299.14
5.2.70.0040.0309.14
5.2.60.0060.0279.09
5.2.50.0050.0309.06
5.2.40.0060.0289.03
5.2.30.0020.0339.02
5.2.20.0070.0279.00
5.2.10.0050.0288.93
5.2.00.0070.0278.78
5.1.60.0050.0298.07
5.1.50.0050.0248.06
5.1.40.0040.0248.05
5.1.30.0040.0268.40
5.1.20.0070.0248.42
5.1.10.0050.0258.15
5.1.00.0030.0278.15
5.0.50.0040.0226.63
5.0.40.0050.0216.48
5.0.30.0030.0326.29
5.0.20.0030.0206.27
5.0.10.0050.0186.24
5.0.00.0060.0276.23
4.4.90.0020.0164.77
4.4.80.0050.0124.75
4.4.70.0030.0144.76
4.4.60.0020.0164.76
4.4.50.0040.0134.77
4.4.40.0040.0244.71
4.4.30.0020.0174.76
4.4.20.0040.0144.85
4.4.10.0010.0174.85
4.4.00.0050.0274.76
4.3.110.0040.0154.67
4.3.100.0020.0154.66
4.3.90.0020.0154.63
4.3.80.0010.0264.58
4.3.70.0020.0154.63
4.3.60.0050.0124.63
4.3.50.0040.0144.63
4.3.40.0040.0234.54
4.3.30.0020.0163.29
4.3.20.0020.0163.26
4.3.10.0030.0153.22
4.3.00.0100.01711.06

preferences:
40.37 ms | 400 KiB | 5 Q