3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "\u00c5\u00a0koda"; $str = mb_convert_encoding($str, "iso-8859-1"); echo $str; $str = mb_convert_encoding($str, "utf-8"); echo $str;

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)
8.3.60.0060.00918.43
8.3.50.0140.00620.98
8.3.40.0030.01718.63
8.3.30.0070.01119.00
8.3.20.0030.00620.16
8.3.10.0050.00321.71
8.3.00.0030.00717.13
8.2.180.0120.00916.63
8.2.170.0070.01022.96
8.2.160.0070.00720.56
8.2.150.0030.00624.18
8.2.140.0080.00024.66
8.2.130.0060.00326.16
8.2.120.0000.00722.34
8.2.110.0060.00320.48
8.2.100.0110.00018.28
8.2.90.0000.00819.23
8.2.80.0030.00617.97
8.2.70.0040.00417.88
8.2.60.0040.00418.05
8.2.50.0030.00618.07
8.2.40.0080.00418.16
8.2.30.0080.00218.16
8.2.20.0000.00817.89
8.2.10.0070.00018.18
8.2.00.0070.00217.91
8.1.280.0100.01025.92
8.1.270.0060.00923.81
8.1.260.0080.00026.35
8.1.250.0110.00328.09
8.1.240.0040.00423.96
8.1.230.0110.00019.05
8.1.220.0000.00817.77
8.1.210.0000.00818.77
8.1.200.0040.00417.47
8.1.190.0000.00817.25
8.1.180.0040.00418.10
8.1.170.0060.00318.66
8.1.160.0070.00022.17
8.1.150.0060.00318.86
8.1.140.0000.00717.48
8.1.130.0040.00417.94
8.1.120.0030.00317.59
8.1.110.0040.00417.50
8.1.100.0040.00317.54
8.1.90.0050.00217.55
8.1.80.0030.00317.55
8.1.70.0000.00817.45
8.1.60.0060.00617.75
8.1.50.0040.00417.66
8.1.40.0060.00317.50
8.1.30.0050.00317.72
8.1.20.0040.00417.77
8.1.10.0080.00017.56
8.1.00.0030.00617.54
8.0.300.0030.00518.77
8.0.290.0000.00816.88
8.0.280.0070.00018.43
8.0.270.0000.00717.32
8.0.260.0030.00317.35
8.0.250.0060.00016.97
8.0.240.0040.00417.07
8.0.230.0060.00317.03
8.0.220.0050.00316.84
8.0.210.0030.00316.86
8.0.200.0040.00416.96
8.0.190.0000.00816.91
8.0.180.0040.00417.00
8.0.170.0030.00516.88
8.0.160.0050.00216.98
8.0.150.0030.00316.96
8.0.140.0040.00416.78
8.0.130.0000.00613.41
8.0.120.0050.00316.82
8.0.110.0040.00417.02
8.0.100.0070.00016.93
8.0.90.0040.00417.00
8.0.80.0000.01416.83
8.0.70.0080.00016.92
8.0.60.0000.00716.99
8.0.50.0070.00016.77
8.0.30.0080.01017.11
8.0.20.0140.00717.40
8.0.10.0080.00016.81
8.0.00.0090.01016.78
7.4.330.0050.00015.03
7.4.320.0030.00316.70
7.4.300.0000.00616.48
7.4.290.0000.00616.55
7.4.280.0040.00416.45
7.4.270.0000.00716.52
7.4.260.0030.00616.53
7.4.250.0040.00416.37
7.4.240.0020.00516.54
7.4.230.0000.00716.77
7.4.220.0120.00916.52
7.4.210.0060.00616.65
7.4.200.0030.00316.71
7.4.160.0100.00716.70
7.4.150.0040.01317.40
7.4.140.0120.00617.86
7.4.130.0090.01316.56
7.4.120.0130.00316.63
7.4.110.0040.01916.51
7.4.100.0130.01016.69
7.4.90.0070.01016.43
7.4.80.0100.00719.39
7.4.70.0130.00316.40
7.4.60.0030.01316.47
7.4.50.0000.00816.52
7.4.40.0120.00416.55
7.4.30.0090.00916.47
7.4.00.0100.00815.08
7.3.330.0040.00213.07
7.3.320.0030.00313.21
7.3.310.0070.00016.39
7.3.300.0030.00316.18
7.3.290.0070.00716.24
7.3.280.0080.00916.33
7.3.270.0120.00617.40
7.3.260.0120.00616.32
7.3.250.0070.00916.34
7.3.240.0100.01016.27
7.3.230.0100.00616.39
7.3.210.0100.00716.65
7.3.200.0090.01219.39
7.3.190.0120.00916.36
7.3.180.0090.00916.48
7.3.170.0160.00016.47
7.3.160.0060.01016.45
7.3.120.0040.01414.81
7.3.110.0100.00914.75
7.3.100.0070.01314.98
7.3.90.0070.00714.80
7.3.80.0080.00415.32
7.3.70.0100.00715.00
7.3.60.0060.00614.68
7.3.50.0030.01414.81
7.3.40.0070.00714.82
7.3.30.0090.00514.97
7.3.20.0130.00316.73
7.3.10.0070.00616.61
7.3.00.0060.00616.65
7.2.330.0100.01316.63
7.2.320.0060.01216.59
7.2.310.0080.00816.94
7.2.300.0130.00316.45
7.2.290.0090.01416.68
7.2.250.0040.01414.94
7.2.240.0040.01414.77
7.2.230.0070.00714.92
7.2.220.0100.00715.26
7.2.210.0070.01115.02
7.2.200.0100.01015.02
7.2.190.0000.01214.82
7.2.180.0040.01114.79
7.2.170.0070.00715.17
7.2.160.0040.01114.84
7.2.150.0070.00716.94
7.2.140.0000.01516.71
7.2.130.0070.00716.97
7.2.120.0070.00816.95
7.2.110.0050.00916.93
7.2.100.0050.00816.99
7.2.90.0020.01116.93
7.2.80.0070.01016.73
7.2.70.0050.00716.96
7.2.60.0100.00616.94
7.2.50.0060.00817.05
7.2.40.0050.00916.79
7.2.30.0050.00716.85
7.2.20.0060.00916.92
7.2.10.0090.00816.93
7.2.00.0030.01017.83
7.1.330.0100.00615.66
7.1.320.0090.00615.88
7.1.310.0000.01516.15
7.1.300.0110.00415.72
7.1.290.0030.01315.81
7.1.280.0040.00715.93
7.1.270.0030.00915.95
7.1.260.0070.00715.93
7.1.250.0030.01015.80
7.1.240.0110.00416.10
7.1.230.0080.00415.99
7.1.220.0070.00715.64
7.1.210.0030.01015.74
7.1.200.0070.00715.77
7.1.190.0000.00915.86
7.1.180.0040.00415.80
7.1.170.0040.00415.80
7.1.160.0030.00615.89
7.1.150.0070.00715.82
7.1.140.0030.01015.96
7.1.130.0040.01115.97
7.1.120.0100.00315.60
7.1.110.0030.00616.12
7.1.100.0020.01216.96
7.1.90.0050.00816.09
7.1.80.0040.00716.07
7.1.70.0020.00916.59
7.1.60.0050.01217.63
7.1.50.0100.00916.37
7.1.40.0070.00715.82
7.1.30.0040.01116.05
7.1.20.0000.01515.50
7.1.10.0080.00416.05
7.1.00.0080.04019.21
7.0.330.0000.01315.61
7.0.320.0080.00615.36
7.0.310.0030.01015.49
7.0.300.0100.00315.65
7.0.290.0000.01315.61
7.0.280.0000.01515.56
7.0.270.0060.00315.30
7.0.260.0060.00615.67
7.0.250.0090.00615.50
7.0.240.0060.00915.72
7.0.230.0100.00315.59
7.0.220.0080.00415.69
7.0.210.0090.00315.50
7.0.200.0030.01016.39
7.0.190.0000.01115.59
7.0.180.0070.00315.48
7.0.170.0070.00715.21
7.0.160.0110.00315.52
7.0.150.0090.00915.59
7.0.140.0080.04018.73
7.0.130.0090.00615.36
7.0.120.0070.00715.63
7.0.110.0030.00615.75
7.0.100.0070.00315.54
7.0.90.0030.01015.64
7.0.80.0030.01115.79
7.0.70.0000.01415.64
7.0.60.0070.04517.58
7.0.50.0080.02016.71
7.0.40.0050.03716.85
7.0.30.0270.04516.91
7.0.20.0140.03816.95
7.0.10.0080.03816.85
7.0.00.0080.03816.75
5.6.400.0090.00614.81
5.6.390.0030.00714.54
5.6.380.0040.00714.63
5.6.370.0060.00314.50
5.6.360.0110.00014.16
5.6.350.0100.00614.43
5.6.340.0000.00914.29
5.6.330.0090.00614.45
5.6.320.0150.00314.57
5.6.310.0050.00514.23
5.6.300.0140.00314.61
5.6.290.0030.01314.37
5.6.280.0020.04117.78
5.6.270.0060.00614.14
5.6.260.0070.01014.22
5.6.250.0080.00414.24
5.6.240.0030.01014.25
5.6.230.0070.00714.15
5.6.220.0030.01314.72
5.6.210.0070.04217.47
5.6.200.0090.03416.42
5.6.190.0090.02617.33
5.6.180.0090.04017.31
5.6.170.0140.02317.60
5.6.160.0060.02617.28
5.6.150.0060.04116.27
5.6.140.0030.05016.23
5.6.130.0120.04316.14
5.6.120.0050.04117.42
5.6.110.0100.04317.75
5.6.100.0050.03717.62
5.6.90.0090.03017.66
5.6.80.0050.04217.16
5.6.70.0000.01614.32
5.6.60.0110.00314.28
5.6.50.0100.00314.11
5.6.40.0030.00714.45
5.6.30.0080.00814.30
5.6.20.0070.00414.23
5.6.10.0030.01014.37
5.6.00.0040.01114.01
5.5.380.0120.00614.37
5.5.370.0040.01114.70
5.5.360.0070.01014.09
5.5.350.0120.03717.52
5.5.340.0050.03416.18
5.5.330.0050.02817.40
5.5.320.0200.03917.37
5.5.310.0130.03017.49
5.5.300.0050.03015.98
5.5.290.0100.04116.15
5.5.280.0060.02317.64
5.5.270.0100.04317.63
5.5.260.0100.04317.44
5.5.250.0050.04417.41
5.5.240.0080.01817.33
5.5.230.0000.01014.11
5.5.220.0070.00314.21
5.5.210.0030.00714.08
5.5.200.0100.00314.09
5.5.190.0000.01414.27
5.5.180.0030.00514.43
5.5.170.0040.00714.16
5.5.160.0080.00813.84
5.5.150.0060.00614.16
5.5.140.0000.00913.90
5.5.130.0080.00414.33
5.5.120.0080.00414.30
5.5.110.0000.01513.93
5.5.100.0030.00614.13
5.5.90.0040.00814.04
5.5.80.0090.00314.08
5.5.70.0090.00614.08
5.5.60.0030.01014.17
5.5.50.0030.00914.32
5.5.40.0060.00914.41
5.5.30.0000.00914.21
5.5.20.0030.01014.25
5.5.10.0070.01014.11
5.5.00.0040.01214.33
5.4.450.0150.03915.83
5.4.440.0180.02515.74
5.4.430.0130.02515.77
5.4.420.0450.00315.78
5.4.410.0340.00215.75
5.4.400.0330.00315.62
5.4.390.0360.00015.62
5.4.380.0350.00215.63
5.4.370.0360.00115.56
5.4.360.0420.00515.50
5.4.350.0370.00215.67
5.4.340.0020.02212.03
5.4.330.0030.01012.08
5.4.320.0020.02312.27
5.4.310.0080.02012.27
5.4.300.0050.02312.27
5.4.290.0040.02112.27
5.4.280.0090.01712.21
5.4.270.0040.02512.21
5.4.260.0060.01912.21
5.4.250.0030.02212.21
5.4.240.0070.01912.21
5.4.230.0070.01912.21
5.4.220.0050.02012.21
5.4.210.0020.02512.21
5.4.200.0060.02212.21
5.4.190.0050.02112.21
5.4.180.0040.02412.21
5.4.170.0080.01912.21
5.4.160.0070.02212.21
5.4.150.0070.02112.21
5.4.140.0020.02212.05
5.4.130.0060.02112.04
5.4.120.0060.02112.03
5.4.110.0090.01512.02
5.4.100.0070.02012.02
5.4.90.0020.02612.02
5.4.80.0040.02312.03
5.4.70.0060.01912.02
5.4.60.0020.02212.02
5.4.50.0060.01812.02
5.4.40.0050.01812.02
5.4.30.0070.01612.01
5.4.20.0040.02012.02
5.4.10.0060.01912.01
5.4.00.0020.02211.76
5.3.290.0060.04012.80
5.3.280.0090.03412.71
5.3.270.0070.03712.73
5.3.260.0140.03712.72
5.3.250.0060.03512.72
5.3.240.0040.03712.72
5.3.230.0060.03612.71
5.3.220.0070.04012.68
5.3.210.0030.04312.68
5.3.200.0050.03812.68
5.3.190.0060.03812.68
5.3.180.0060.03612.67
5.3.170.0100.03212.67
5.3.160.0050.03712.67
5.3.150.0040.04112.67
5.3.140.0030.03712.66
5.3.130.0050.04212.66
5.3.120.0100.04112.65
5.3.110.0050.03912.66
5.3.100.0050.03712.11
5.3.90.0080.03312.08
5.3.80.0060.03712.08
5.3.70.0100.03312.07
5.3.60.0050.03912.07
5.3.50.0070.03412.00
5.3.40.0040.03712.00
5.3.30.0060.03411.94
5.3.20.0050.03811.72
5.3.10.0090.03711.69
5.3.00.0070.03911.68
5.2.170.0020.0329.18
5.2.160.0050.0319.17
5.2.150.0050.0319.18
5.2.140.0040.0389.17
5.2.130.0050.0279.14
5.2.120.0010.0309.14
5.2.110.0080.0259.14
5.2.100.0070.0289.14
5.2.90.0010.0329.14
5.2.80.0060.0309.13
5.2.70.0040.0309.13
5.2.60.0040.0349.09
5.2.50.0040.0349.05
5.2.40.0070.0259.03
5.2.30.0040.0349.00
5.2.20.0070.0259.00
5.2.10.0050.0278.91
5.2.00.0030.0308.77
5.1.60.0040.0248.06
5.1.50.0030.0258.05
5.1.40.0020.0268.04
5.1.30.0050.0248.39
5.1.20.0050.0258.41
5.1.10.0050.0248.14
5.1.00.0040.0248.13
5.0.50.0020.0216.61
5.0.40.0010.0206.48
5.0.30.0010.0326.29
5.0.20.0030.0196.26
5.0.10.0040.0196.24
5.0.00.0040.0296.23
4.4.90.0020.0164.78
4.4.80.0010.0154.76
4.4.70.0060.0124.75
4.4.60.0030.0144.75
4.4.50.0050.0184.77
4.4.40.0010.0264.71
4.4.30.0040.0144.75
4.4.20.0030.0154.85
4.4.10.0040.0164.85
4.4.00.0050.0224.76
4.3.110.0050.0224.67
4.3.100.0050.0124.66
4.3.90.0030.0164.63
4.3.80.0030.0274.58
4.3.70.0030.0144.63
4.3.60.0040.0144.63
4.3.50.0020.0164.63
4.3.40.0030.0244.54
4.3.30.0060.0183.28
4.3.20.0040.0143.26
4.3.10.0050.0143.22
4.3.00.0070.02314.27

preferences:
41.86 ms | 401 KiB | 5 Q