3v4l.org

run code in 300+ PHP versions simultaneously
<?php $examples = array( 'Valid ASCII' => "a", 'Valid 2 Octet Sequence' => "\xc3\xb1", 'Invalid 2 Octet Sequence' => "\xc3\x28", 'Invalid Sequence Identifier' => "\xa0\xa1", 'Valid 3 Octet Sequence' => "\xe2\x82\xa1", 'Invalid 3 Octet Sequence (in 2nd Octet)' => "\xe2\x28\xa1", 'Invalid 3 Octet Sequence (in 3rd Octet)' => "\xe2\x82\x28", 'Valid 4 Octet Sequence' => "\xf0\x90\x8c\xbc", 'Invalid 4 Octet Sequence (in 2nd Octet)' => "\xf0\x28\x8c\xbc", 'Invalid 4 Octet Sequence (in 3rd Octet)' => "\xf0\x90\x28\xbc", 'Invalid 4 Octet Sequence (in 4th Octet)' => "\xf0\x28\x8c\x28", 'Valid 5 Octet Sequence (but not Unicode!)' => "\xf8\xa1\xa1\xa1\xa1", 'Valid 6 Octet Sequence (but not Unicode!)' => "\xfc\xa1\xa1\xa1\xa1\xa1", ); mb_substitute_character(0xFFFD); foreach ($examples as $k => $v) { echo "{$k}\n"; echo mb_convert_encoding($v, 'UTF-8', 'UTF-8'); echo "\n"; }

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)
8.3.60.0110.00318.41
8.3.50.0080.01221.09
8.3.40.0120.00818.67
8.3.30.0070.01118.63
8.3.20.0040.00418.74
8.3.10.0000.00821.09
8.3.00.0000.00823.61
8.2.180.0100.01016.63
8.2.170.0070.00722.96
8.2.160.0110.00420.39
8.2.150.0000.00824.18
8.2.140.0080.00024.66
8.2.130.0000.00926.16
8.2.120.0050.00321.04
8.2.110.0000.00920.57
8.2.100.0080.00317.91
8.2.90.0080.00019.23
8.2.80.0000.00917.97
8.2.70.0120.00017.50
8.2.60.0070.00517.55
8.2.50.0030.00618.07
8.2.40.0050.00317.91
8.2.30.0080.00019.32
8.2.20.0030.00517.65
8.2.10.0040.00417.82
8.2.00.0000.00917.71
8.1.280.0200.00325.92
8.1.270.0040.00423.99
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0180.00422.59
8.1.230.0070.00320.90
8.1.220.0040.00418.77
8.1.210.0080.00018.85
8.1.200.0040.00417.13
8.1.190.0000.00717.40
8.1.180.0000.00818.10
8.1.170.0000.00818.65
8.1.160.0070.00018.95
8.1.150.0000.00818.71
8.1.140.0060.00317.57
8.1.130.0030.00317.72
8.1.120.0040.00417.53
8.1.110.0040.00417.52
8.1.100.0070.00017.55
8.1.90.0000.00717.46
8.1.80.0000.00717.43
8.1.70.0030.00317.49
8.1.60.0040.00417.54
8.1.50.0000.00817.42
8.1.40.0040.00417.60
8.1.30.0040.00417.73
8.1.20.0030.00517.65
8.1.10.0000.00817.54
8.1.00.0000.00817.60
8.0.300.0000.00720.02
8.0.290.0000.00817.16
8.0.280.0040.00418.51
8.0.270.0070.00017.37
8.0.260.0030.00316.82
8.0.250.0000.00816.94
8.0.240.0040.00417.01
8.0.230.0000.00717.04
8.0.220.0040.00416.83
8.0.210.0040.00416.88
8.0.200.0030.00317.00
8.0.190.0000.00717.01
8.0.180.0030.00316.95
8.0.170.0000.00716.88
8.0.160.0000.00716.86
8.0.150.0070.00016.86
8.0.140.0070.00316.83
8.0.130.0000.00513.35
8.0.120.0030.00616.94
8.0.110.0080.00016.80
8.0.100.0040.00416.86
8.0.90.0050.00216.90
8.0.80.0070.01016.98
8.0.70.0030.00517.00
8.0.60.0000.00717.03
8.0.50.0050.00216.87
8.0.30.0130.00517.16
8.0.20.0150.00617.40
8.0.10.0060.00317.14
8.0.00.0170.00316.78
7.4.330.0030.00315.02
7.4.320.0070.00016.48
7.4.300.0030.00316.59
7.4.290.0030.00316.63
7.4.280.0040.00716.65
7.4.270.0070.00016.52
7.4.260.0050.00013.34
7.4.250.0000.00816.54
7.4.240.0090.00016.53
7.4.230.0070.00016.46
7.4.220.0140.01116.52
7.4.210.0060.00816.61
7.4.200.0040.00416.73
7.4.190.0040.00316.61
7.4.160.0130.00716.74
7.4.150.0130.00617.40
7.4.140.0130.00617.86
7.4.130.0090.01116.54
7.4.120.0080.00816.57
7.4.110.0120.00416.59
7.4.100.0090.00816.39
7.4.90.0160.00716.49
7.4.80.0140.00719.39
7.4.70.0150.00316.54
7.4.60.0100.01016.52
7.4.50.0050.00316.54
7.4.40.0080.00522.77
7.4.30.0110.01516.57
7.4.00.0090.00914.85
7.3.330.0020.00213.22
7.3.320.0030.00313.26
7.3.310.0070.00016.46
7.3.300.0070.00016.43
7.3.290.0110.00916.31
7.3.280.0080.00616.34
7.3.270.0080.01117.40
7.3.260.0140.00818.24
7.3.250.0100.00616.48
7.3.240.0070.00716.59
7.3.230.0090.01516.39
7.3.210.0000.01716.32
7.3.200.0100.01016.43
7.3.190.0120.00916.57
7.3.180.0100.00616.21
7.3.170.0070.01016.34
7.3.160.0130.00316.67
7.3.120.0090.00615.11
7.2.330.0060.01316.62
7.2.320.0130.01016.64
7.2.310.0100.01016.74
7.2.300.0120.00616.56
7.2.290.0100.00616.64
7.2.00.0000.01719.27
7.1.100.0030.01318.09
7.1.70.0060.00317.11
7.1.60.0040.00717.41
7.1.50.0090.00617.02
7.1.00.0100.07022.36
7.0.200.0070.00716.78
7.0.140.0030.07722.11
7.0.60.0000.06019.95
7.0.50.0100.07717.82
7.0.40.0100.08020.09
7.0.30.0370.07320.09
7.0.20.0200.04320.16
7.0.10.0100.08020.00
7.0.00.0070.08320.19
5.6.280.0030.07321.09
5.6.210.0070.05720.72
5.6.200.0070.05018.11
5.6.190.0070.08320.61
5.6.180.0270.07020.41
5.6.170.0170.05320.61
5.6.160.0100.03320.42
5.6.150.0100.05718.09
5.6.140.0030.04318.18
5.6.130.0070.08318.09
5.6.120.0100.08321.00
5.6.110.0070.05321.13
5.6.100.0070.03720.88
5.6.90.0100.07021.09
5.6.80.0030.03720.38
5.6.70.4530.04020.39
5.5.350.0100.06320.46
5.5.340.0100.05018.02
5.5.330.0100.03720.20
5.5.320.0330.07020.20
5.5.310.0270.07720.32
5.5.300.0030.08017.91
5.5.290.0170.07317.92
5.5.280.0070.06320.73
5.5.270.0000.04720.78
5.5.260.0130.07720.76
5.5.250.0000.08020.61
5.5.240.0300.07020.36
5.4.450.2030.04319.54
5.4.440.2030.04719.46
5.4.430.1770.04319.45
5.4.420.2100.05019.45
5.4.410.1870.03319.28
5.4.400.2100.04719.20
5.4.390.1870.05019.22
5.4.380.2130.02719.16
5.4.370.2200.04319.13
5.4.360.2230.04718.80
5.4.350.1970.04318.77
5.4.340.2030.04319.16
5.4.320.2070.04718.89
5.4.310.1830.04019.13
5.4.300.1930.03319.06
5.4.290.1930.04018.91
5.4.280.2070.04718.93
5.4.270.2070.04319.13
5.4.260.2100.03719.11
5.4.250.2100.04019.23
5.4.240.2030.03319.21
5.4.230.2030.05018.91
5.4.220.1970.05018.77
5.4.210.1970.05019.09
5.4.200.2000.04719.09
5.4.190.2100.04318.91
5.4.180.2030.04318.92
5.4.170.1800.03719.12
5.4.160.2000.04019.22
5.4.150.1870.04019.04
5.4.140.2100.04016.54
5.4.130.1800.03016.44
5.4.120.2030.04716.31
5.4.110.1870.03016.20
5.4.100.1800.04016.30
5.4.90.1830.03316.23
5.4.80.2100.03716.46
5.4.70.1900.03316.20
5.4.60.1830.03316.47
5.4.50.1770.04016.36
5.4.40.1930.04016.27
5.4.30.2130.04316.38
5.4.20.1730.02716.16
5.4.10.1900.03016.18
5.4.00.0130.04015.61
5.3.290.0000.05714.61
5.3.280.0070.06714.63
5.3.270.1500.03014.65
5.3.260.2200.04314.45
5.3.250.2200.03714.65
5.3.240.1970.04714.51
5.3.230.1900.04014.45
5.3.220.2070.04714.43
5.3.210.1900.03014.40
5.3.200.1830.03714.44
5.3.190.1900.03014.41
5.3.180.1900.03714.61
5.3.170.2130.04014.39
5.3.160.1900.03714.50
5.3.150.2070.03714.65
5.3.140.1770.03714.40
5.3.130.1970.04714.40
5.3.120.2030.03014.38
5.3.110.2070.04314.59
5.3.100.1930.04013.97
5.3.90.1870.02713.89
5.3.80.2030.04013.97
5.3.70.2100.03713.81
5.3.60.2070.03713.95
5.3.50.1770.03713.79
5.3.40.1870.04013.80
5.3.30.2100.04013.74
5.3.20.2030.04313.76
5.3.10.2000.04313.77
5.3.00.2000.03713.68
5.2.170.1470.02711.09
5.2.160.1700.03311.00
5.2.150.1530.03011.23
5.2.140.1630.03311.22
5.2.130.1500.03011.05
5.2.120.1730.03711.11
5.2.110.1400.03311.06
5.2.100.0600.04711.01
5.2.90.0030.03710.96
5.2.80.0000.03311.15
5.2.70.0000.06711.14
5.2.60.0630.03010.94
5.2.50.1800.03010.91
5.2.40.1500.03310.95
5.2.30.1300.03010.98
5.2.20.1430.03010.86
5.2.10.1370.03310.77
5.2.00.1270.02310.87
5.1.60.1370.02710.41
5.1.50.1200.02710.41
5.1.40.1330.02710.41
5.1.30.1370.02310.41
5.1.20.1170.02710.46
5.1.10.1270.02710.41
5.1.00.1200.02310.41
5.0.50.0830.03310.41
5.0.40.0770.02310.41
5.0.30.0770.04310.41
5.0.20.0770.03310.41
5.0.10.0800.03310.41
5.0.00.0670.03010.41
4.4.90.0730.02310.41
4.4.80.0770.01710.41
4.4.70.0900.02310.41
4.4.60.0770.01710.41
4.4.50.0930.02010.41
4.4.40.0930.02710.41
4.4.30.0670.02010.41
4.4.20.0830.02310.41
4.4.10.0800.02010.41
4.4.00.0770.02710.41
4.3.110.0800.02310.41
4.3.100.0630.01310.41
4.3.90.0730.02710.41
4.3.80.0600.02710.41
4.3.70.0770.02310.41
4.3.60.0670.01010.41
4.3.50.0800.02310.41
4.3.40.0630.02010.41
4.3.30.0300.02010.41
4.3.20.0270.02010.41
4.3.10.0300.01710.41
4.3.00.0330.01310.41

preferences:
50.85 ms | 401 KiB | 5 Q