3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = "some\xc2\xa0 text `"; var_dump(mb_convert_encoding($test, 'UTF-7', 'UTF-8')); var_dump(mb_convert_encoding($test, 'UCS-2', 'UTF-8')); var_dump(mb_detect_encoding($test, ['UTF-7', 'UTF-8', 'UCS-2']));

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)
8.3.60.0130.00718.30
8.3.50.0120.01021.94
8.3.40.0080.00818.61
8.3.30.0150.00018.84
8.3.20.0170.00320.34
8.3.10.0060.00921.87
8.3.00.0000.00819.00
8.2.180.0110.00718.05
8.2.170.0040.01122.96
8.2.160.0130.00320.53
8.2.150.0000.00724.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0000.00822.05
8.2.110.0000.00820.52
8.2.100.0040.00818.09
8.2.90.0040.00419.17
8.2.80.0050.00317.97
8.2.70.0040.00417.50
8.2.60.0060.00618.05
8.2.50.0000.01018.07
8.2.40.0040.00419.75
8.2.30.0000.00718.05
8.2.20.0000.00717.76
8.2.10.0000.00818.05
8.2.00.0000.00817.57
8.1.280.0070.01125.92
8.1.270.0030.00523.96
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0000.01023.74
8.1.230.0120.00019.11
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0050.00517.23
8.1.180.0000.00818.10
8.1.170.0000.00818.57
8.1.160.0040.00422.05
8.1.150.0040.00718.75
8.1.140.0040.00417.45
8.1.130.0040.00417.88
8.1.120.0000.00717.42
8.1.110.0000.00817.44
8.1.100.0030.00317.40
8.1.90.0030.00317.52
8.1.80.0080.00017.35
8.1.70.0000.00717.44
8.1.60.0040.00417.49
8.1.50.0030.00617.51
8.1.40.0020.00517.41
8.1.30.0030.00617.54
8.1.20.0000.00817.47
8.1.10.0000.00817.55
8.1.00.0070.00017.33
8.0.300.0000.00718.77
8.0.290.0030.00516.63
8.0.280.0070.00018.33
8.0.270.0000.00717.29
8.0.260.0050.00317.12
8.0.250.0000.00716.98
8.0.240.0030.00316.88
8.0.230.0000.00716.82
8.0.220.0040.00416.92
8.0.210.0040.00416.77
8.0.200.0060.00316.95
8.0.190.0040.00416.81
8.0.180.0080.00016.80
8.0.170.0070.00016.86
8.0.160.0030.00516.83
8.0.150.0000.00716.82
8.0.140.0070.00016.88
8.0.130.0030.00313.27
8.0.120.0040.00416.87
8.0.110.0000.00816.77
8.0.100.0030.00516.76
8.0.90.0070.00016.79
8.0.80.0030.01616.93
8.0.70.0000.00716.86
8.0.60.0020.00516.95
8.0.50.0000.00816.80
8.0.30.0140.00516.96
8.0.20.0110.00917.40
8.0.10.0000.00716.96
8.0.00.0060.01116.70
7.4.330.0000.00515.16
7.4.320.0030.00316.48
7.4.300.0040.00416.50
7.4.290.0070.00016.59
7.4.280.0000.00816.66
7.4.270.0020.00516.50
7.4.260.0020.00516.57
7.4.250.0000.00816.48
7.4.240.0070.00016.50
7.4.230.0040.00416.68
7.4.220.0210.00616.48
7.4.210.0000.01416.56
7.4.200.0030.00316.60
7.4.160.0120.00616.50
7.4.150.0080.01617.40
7.4.140.0100.00817.86
7.4.130.0080.01116.28
7.4.120.0070.01116.48
7.4.110.0120.00916.45
7.4.100.0090.00616.46
7.4.90.0100.01016.39
7.4.80.0130.00319.39
7.4.70.0070.01016.43
7.4.60.0080.00816.28
7.4.50.0000.00816.54
7.4.40.0090.00616.67
7.4.30.0060.01016.52
7.4.00.0050.01014.95
7.3.330.0050.00012.95
7.3.320.0000.00613.09
7.3.310.0070.00016.14
7.3.300.0040.00416.20
7.3.290.0110.00316.22
7.3.280.0110.00816.22
7.3.270.0100.00717.40
7.3.260.0070.01016.22
7.3.250.0110.00616.24
7.3.240.0090.00916.21
7.3.230.0090.00816.42
7.3.210.0120.01016.39
7.3.200.0110.00819.39
7.3.190.0150.00616.46
7.3.180.0070.00816.23
7.3.170.0120.00616.27
7.3.160.0100.00616.35
7.3.120.0070.01014.97
7.3.110.0150.00014.67
7.3.100.0090.00614.51
7.3.90.0070.01014.66
7.3.80.0060.00614.84
7.3.70.0000.01514.69
7.3.60.0070.00714.87
7.3.50.0090.00614.34
7.3.40.0030.01514.59
7.3.30.0040.01114.91
7.3.20.0100.00016.60
7.3.10.0120.00316.39
7.3.00.0100.00616.43
7.2.330.0120.00916.28
7.2.320.0180.00316.27
7.2.310.0030.01416.46
7.2.300.0090.00616.59
7.2.290.0120.00916.51
7.2.250.0120.00614.95
7.2.240.0030.01314.69
7.2.230.0030.00614.74
7.2.220.0040.01014.68
7.2.210.0060.00315.03
7.2.200.0060.00314.71
7.2.190.0070.00714.84
7.2.180.0060.01214.92
7.2.170.0110.00314.60
7.2.60.0070.00716.54
7.2.00.0000.01019.15
7.1.330.0100.00615.49
7.1.320.0080.00815.76
7.1.310.0000.01015.86
7.1.300.0090.00915.62
7.1.290.0040.00715.63
7.1.280.0060.00315.80
7.1.270.0060.00915.79
7.1.260.0070.00715.96
7.1.200.0030.01215.69
7.1.100.0060.00618.22
7.1.70.0000.00917.00
7.1.60.0070.01819.32
7.1.50.0070.01617.07
7.1.00.0100.07022.31
7.0.200.0000.01016.77
7.0.140.0000.07722.18
7.0.60.0130.08020.03
7.0.50.0100.07717.90
7.0.40.0100.04020.20
7.0.30.0270.04020.09
7.0.20.0300.08020.10
7.0.10.0030.06320.19
7.0.00.0030.08720.14
5.6.280.0030.07321.07
5.6.210.0070.08020.65
5.6.200.0030.08018.16
5.6.190.0100.06320.73
5.6.180.0370.03720.41
5.6.170.0230.04020.48
5.6.160.0100.03320.52
5.6.150.0200.06018.09
5.6.140.0130.07018.14
5.6.130.0030.05718.11
5.6.120.0000.04320.84
5.6.110.0030.05721.00
5.6.100.0100.06020.97
5.6.90.0030.08020.94
5.6.80.0100.07020.47
5.5.350.0070.09020.38
5.5.340.0100.07717.95
5.5.330.0030.05020.25
5.5.320.0370.07320.28
5.5.310.0200.05720.41
5.5.300.0030.04018.02
5.5.290.0100.07717.86
5.5.280.0100.03720.76
5.5.270.0000.04320.66
5.5.260.0070.08320.86
5.5.250.0100.07720.61
5.5.240.0400.06020.25
5.4.450.2070.03319.41
5.4.440.2000.05019.42
5.4.430.2400.04019.41
5.4.420.1830.04019.22
5.4.410.2070.04719.00
5.4.400.2030.04019.11
5.4.390.1830.04019.08
5.4.380.1870.03019.11
5.4.370.1900.04019.22
5.4.360.1700.04019.25
5.4.350.1600.03318.81
5.4.340.2270.03018.88
5.4.320.1970.03718.91
5.4.310.2100.04319.09
5.4.300.1630.03719.13
5.4.290.1930.04718.89
5.4.280.2100.04719.09
5.4.270.1930.04719.24
5.4.260.1930.04018.80
5.4.250.2000.05019.18
5.4.240.2130.03318.80
5.4.230.1770.05018.88
5.4.220.2070.04019.24
5.4.210.2170.04319.23
5.4.200.1930.04018.88
5.4.190.1630.04318.94
5.4.180.2000.04719.09
5.4.170.1800.04019.09
5.4.160.1600.03719.06
5.4.150.2030.04018.93
5.4.140.1770.03316.26
5.4.130.2000.04316.31
5.4.120.2000.03316.42
5.4.110.1970.03716.31
5.4.100.2070.04016.46
5.4.90.1770.04316.40
5.4.80.1830.03716.37
5.4.70.1700.04316.04
5.4.60.1970.04016.29
5.4.50.1870.02316.40
5.4.40.2030.04316.31
5.4.30.1900.03716.18
5.4.20.1700.04016.36
5.4.10.1770.03316.20
5.4.00.1800.04015.69
5.3.290.2070.04314.76
5.3.280.2070.04014.45
5.3.270.1930.04314.44
5.3.260.1970.04314.46
5.3.250.2070.04314.46
5.3.240.1800.05014.46
5.3.230.1970.04014.46
5.3.220.1970.04314.48
5.3.210.2200.04014.47
5.3.200.2200.04314.59
5.3.190.1870.03714.58
5.3.180.1800.03714.46
5.3.170.1830.03314.41
5.3.160.1770.04014.58
5.3.150.1900.03714.51
5.3.140.2030.04014.39
5.3.130.2100.04014.39
5.3.120.1870.03714.45
5.3.110.2200.04014.38
5.3.100.1830.04013.96
5.3.90.1800.03713.87
5.3.80.2170.04013.90
5.3.70.2070.03314.01
5.3.60.1830.03713.95
5.3.50.1870.03313.74
5.3.40.2300.04013.98
5.3.30.2200.04714.00
5.3.20.1970.03013.74
5.3.10.2170.02313.46
5.3.00.2030.03013.60
5.2.170.1670.03311.20
5.2.160.1500.02310.99
5.2.150.1470.03010.99
5.2.140.0030.02711.16
5.2.130.0000.03310.94
5.2.120.0000.03311.04
5.2.110.1570.02711.06
5.2.100.1400.03310.99
5.2.90.1530.02710.94
5.2.80.1670.02710.95
5.2.70.1630.02311.00
5.2.60.1570.03010.95
5.2.50.1570.03010.86
5.2.40.1270.03010.93
5.2.30.1300.02710.91
5.2.20.1300.03010.98
5.2.10.1530.03310.93
5.2.00.1130.02310.69
5.1.60.1300.0239.97
5.1.50.0930.0309.97
5.1.40.0030.0209.90
5.1.30.0000.03310.34
5.1.20.0000.03010.46
5.1.10.0170.0279.96
5.1.00.0770.02010.15
5.0.50.0200.0208.64
5.0.40.0670.0278.35
5.0.30.0770.0338.18
5.0.20.0600.0178.18
5.0.10.0600.0208.18
5.0.00.0500.0338.21
4.4.90.0600.0138.18
4.4.80.0630.0108.18
4.4.70.0630.0138.18
4.4.60.0670.0208.18
4.4.50.0600.0178.18
4.4.40.0670.0308.18
4.4.30.0570.0138.18
4.4.20.0600.0108.18
4.4.10.0630.0208.18
4.4.00.0570.0238.18
4.3.110.0730.0208.18
4.3.100.0530.0138.18
4.3.90.0700.0238.18
4.3.80.0530.0278.18
4.3.70.0600.0208.18
4.3.60.0570.0178.18
4.3.50.0700.0238.18
4.3.40.0630.0278.18
4.3.30.0300.0108.18
4.3.20.0370.0278.18
4.3.10.0300.0138.18
4.3.00.0270.0178.18

preferences:
45.65 ms | 401 KiB | 5 Q