3v4l.org

run code in 300+ PHP versions simultaneously
<?php $examples = array( 'Valid ASCII' => "a", 'Valid 2 Octet Sequence' => "\xc3\xb1", 'Invalid 2 Octet Sequence' => "\xc3\x28", 'Invalid Sequence Identifier' => "\xa0\xa1", 'Valid 3 Octet Sequence' => "\xe2\x82\xa1", 'Invalid 3 Octet Sequence (in 2nd Octet)' => "\xe2\x28\xa1", 'Invalid 3 Octet Sequence (in 3rd Octet)' => "\xe2\x82\x28", 'Valid 4 Octet Sequence' => "\xf0\x90\x8c\xbc", 'Invalid 4 Octet Sequence (in 2nd Octet)' => "\xf0\x28\x8c\xbc", 'Invalid 4 Octet Sequence (in 3rd Octet)' => "\xf0\x90\x28\xbc", 'Invalid 4 Octet Sequence (in 4th Octet)' => "\xf0\x28\x8c\x28", 'Valid 5 Octet Sequence (but not Unicode!)' => "\xf8\xa1\xa1\xa1\xa1", 'Valid 6 Octet Sequence (but not Unicode!)' => "\xfc\xa1\xa1\xa1\xa1\xa1", ); mb_substitute_character(0x3013); foreach ($examples as $k => $v) { echo "{$k}\n"; echo 'raw: ' . $v; echo 'default: ' . mb_convert_encoding($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)
8.3.60.0140.00716.38
8.3.50.0130.00517.47
8.3.40.0000.01418.84
8.3.30.0110.00418.50
8.3.20.0040.00418.52
8.3.10.0000.01518.78
8.3.00.0070.00419.25
8.2.180.0070.00725.92
8.2.170.0120.00319.01
8.2.160.0030.01022.96
8.2.150.0060.00324.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0000.00919.12
8.2.110.0000.00922.10
8.2.100.0130.00017.91
8.2.90.0000.00817.63
8.2.80.0030.00718.78
8.2.70.0040.00417.50
8.2.60.0000.00817.63
8.2.50.0080.00017.63
8.2.40.0030.00617.62
8.2.30.0050.00217.67
8.2.20.0000.00819.36
8.2.10.0000.00817.81
8.2.00.0030.00517.60
8.1.270.0040.00424.66
8.1.260.0060.00326.35
8.1.250.0090.00028.09
8.1.240.0080.00323.88
8.1.230.0090.00319.09
8.1.220.0030.00517.79
8.1.210.0000.00918.77
8.1.200.0080.00017.35
8.1.190.0040.00417.23
8.1.180.0030.00618.10
8.1.170.0040.00417.62
8.1.160.0050.00318.83
8.1.150.0040.00418.77
8.1.140.0040.00417.50
8.1.130.0000.00717.83
8.1.120.0090.00017.57
8.1.110.0000.00817.43
8.1.100.0030.00517.46
8.1.90.0040.00417.53
8.1.80.0040.00417.56
8.1.70.0050.00317.47
8.1.60.0080.00017.63
8.1.50.0040.00417.48
8.1.40.0040.00417.55
8.1.30.0050.00317.60
8.1.20.0040.00417.71
8.1.10.0070.00017.60
8.1.00.0000.00717.39
8.0.300.0040.00418.77
8.0.290.0040.00416.88
8.0.280.0030.00618.08
8.0.270.0000.00717.98
8.0.260.0000.00616.88
8.0.250.0040.00417.06
8.0.240.0070.00016.92
8.0.230.0070.00016.95
8.0.220.0000.00716.84
8.0.210.0000.00716.94
8.0.200.0030.00317.03
8.0.190.0050.00317.00
8.0.180.0040.00716.91
8.0.170.0060.00316.86
8.0.160.0070.00017.00
8.0.150.0050.00316.91
8.0.140.0030.00716.91
8.0.130.0000.00513.33
8.0.120.0070.00016.86
8.0.110.0040.00416.86
8.0.100.0000.00716.99
8.0.90.0000.00716.83
8.0.80.0060.01216.98
8.0.70.0080.00016.88
8.0.60.0050.00316.75
8.0.50.0070.00017.01
8.0.30.0140.00717.00
8.0.20.0100.00817.23
8.0.10.0050.00217.03
8.0.00.0100.01216.72
7.4.330.0050.00013.10
7.4.320.0000.00616.69
7.4.300.0030.00316.58
7.4.290.0030.00316.59
7.4.280.0060.00316.71
7.4.270.0000.00716.55
7.4.260.0000.00513.40
7.4.250.0030.00516.63
7.4.240.0070.00016.63
7.4.230.0040.00416.38
7.4.220.0100.00916.67
7.4.210.0080.00916.69
7.4.200.0000.00716.61
7.4.190.0040.00416.59
7.4.160.0080.00816.24
7.4.150.0100.01316.54
7.4.140.0070.01016.48
7.4.130.0090.01216.41
7.4.120.0180.00116.40
7.4.110.0110.00616.37
7.4.100.0090.00916.57
7.4.90.0070.01016.56
7.4.80.0150.01019.39
7.4.70.0140.00316.51
7.4.60.0110.00616.48
7.4.50.0030.00616.26
7.4.40.0060.01016.39
7.4.30.0170.00016.46
7.4.00.0040.01115.12
7.3.330.0060.00013.22
7.3.320.0000.00513.25
7.3.310.0040.00416.32
7.3.300.0000.00716.33
7.3.290.0090.00616.37
7.3.280.0080.00916.29
7.3.270.0100.00716.52
7.3.260.0090.00916.37
7.3.250.0070.01016.33
7.3.240.0030.01316.36
7.3.230.0120.01216.52
7.3.210.0030.01716.29
7.3.200.0080.00816.24
7.3.190.0080.00916.35
7.3.180.0090.00616.52
7.3.170.0120.00616.25
7.3.160.0100.00716.54
7.3.120.0030.01015.11
7.2.330.0070.01016.69
7.2.320.0150.00316.62
7.2.310.0120.00616.64
7.2.300.0160.00616.52
7.2.290.0100.01416.48
7.2.00.0030.00619.24
7.1.100.0100.00018.00
7.1.70.0040.00416.95
7.1.60.0130.01319.40
7.1.50.0140.01116.88
7.1.00.0030.03322.57
7.0.200.0280.00414.85
7.0.140.0070.07022.07
7.0.120.0000.03322.26
7.0.60.0030.07019.92
7.0.50.0030.04017.92
7.0.40.0030.05717.69
7.0.30.0000.04317.70
7.0.20.0100.08017.73
7.0.10.0070.04017.79
7.0.00.0070.04717.77
5.6.280.0030.07020.81
5.6.210.0170.07320.56
5.6.200.0070.07718.12
5.6.190.0130.07318.18
5.6.180.0000.04718.15
5.6.170.0100.04318.16
5.6.160.0070.08318.04
5.6.150.0170.05318.09
5.6.140.0100.04718.15
5.6.130.0030.08018.13
5.6.120.0000.05318.18
5.6.110.0030.06318.11
5.6.100.0100.04718.18
5.6.90.0070.06318.11
5.6.80.0070.07017.59
5.6.70.0130.03017.46
5.6.60.0000.05717.49
5.6.50.0070.04017.56
5.6.40.0130.04317.54
5.6.30.0030.04717.45
5.6.20.0030.04017.46
5.6.10.0030.06317.47
5.6.00.0070.08017.54
5.5.350.0330.07720.37
5.5.340.0130.07317.91
5.5.330.0070.04018.01
5.5.320.0000.04317.96
5.5.310.0070.05317.91
5.5.300.0100.05718.00
5.5.290.0030.04717.96
5.5.280.0130.04717.94
5.5.270.0030.04717.94
5.5.260.0100.04717.91
5.5.250.0070.05317.73
5.5.240.0100.07017.39
5.5.230.0030.04017.36
5.5.220.0030.04017.29
5.5.210.0070.07017.30
5.5.200.0100.04017.37
5.5.190.0000.04717.36
5.5.180.0070.04717.33
5.5.160.0100.07717.27
5.5.150.0100.03017.32
5.5.140.0030.08017.31
5.5.130.0000.04017.26
5.5.120.0030.05017.26
5.5.110.0000.05017.30
5.5.100.0070.07317.27
5.5.90.0030.04017.21
5.5.80.0000.07317.22
5.5.70.0100.04317.19
5.5.60.0030.04317.22
5.5.50.0030.07017.25
5.5.40.0030.03717.25
5.5.30.0000.06317.26
5.5.20.0030.04017.16
5.5.10.0100.04717.24
5.5.00.0000.05017.25
5.4.450.0070.05719.21
5.4.440.0070.07719.45
5.4.430.0000.04719.29
5.4.420.0070.07019.29
5.4.410.0130.06019.35
5.4.400.0130.04018.98
5.4.390.0100.06719.13
5.4.380.0070.05318.82
5.4.370.0030.07319.21
5.4.360.0030.05319.01
5.4.350.0030.07318.98
5.4.340.0030.05718.96
5.4.320.0070.07719.03
5.4.310.0130.03019.07
5.4.300.0070.08018.94
5.4.290.0100.04018.98
5.4.280.0070.06719.00
5.4.270.0070.05018.98
5.4.260.0000.04318.98
5.4.250.0130.06019.08
5.4.240.0070.05318.97
5.4.230.0070.03719.11
5.4.220.0070.07318.81
5.4.210.0030.04019.09
5.4.200.0030.04719.06
5.4.190.0030.07719.01
5.4.180.0100.07018.95
5.4.170.0100.07319.08
5.4.160.0070.03319.04
5.4.150.0070.07719.18
5.4.140.0170.06316.33
5.4.130.0100.07716.36
5.4.120.0000.08716.29
5.4.110.0070.03716.52
5.4.100.0030.03716.36
5.4.90.0100.03016.39
5.4.80.0070.07016.24
5.4.70.0000.07716.21
5.4.60.0100.07316.14
5.4.50.0070.05716.38
5.4.40.0000.07716.39
5.4.30.0000.05016.35
5.4.20.0070.05016.22
5.4.10.0000.05716.49
5.4.00.0070.03715.75
5.3.290.0130.03314.45
5.3.280.0070.05014.68
5.3.270.0130.06714.57
5.3.260.0130.07014.56
5.3.250.0130.03714.56
5.3.240.0100.04714.70
5.3.230.0030.07314.57
5.3.220.0070.06014.54
5.3.210.0100.06014.35
5.3.200.0030.07714.48
5.3.190.0000.08314.54
5.3.180.0030.04014.53
5.3.170.0130.06314.39
5.3.160.0100.07014.53
5.3.150.0070.07714.53
5.3.140.0070.05714.64
5.3.130.0030.04014.63
5.3.120.0100.03314.48
5.3.110.0070.08014.46
5.3.100.0070.03313.98
5.3.90.0030.04013.87
5.3.80.0030.08013.77
5.3.70.0100.07713.98
5.3.60.0130.05713.85
5.3.50.0070.06713.91
5.3.40.0030.05313.87
5.3.30.0130.03313.87
5.3.20.0100.05313.77
5.3.10.0100.07013.43
5.3.00.0100.07313.61
5.2.170.0000.03711.14
5.2.160.0030.06311.12
5.2.150.0030.06711.12
5.2.140.0130.05010.92
5.2.130.0000.03310.88
5.2.120.0030.06011.07
5.2.110.0030.06710.93
5.2.100.0100.05311.07
5.2.90.0070.05311.05
5.2.80.0100.06010.87
5.2.70.0130.04711.06
5.2.60.0130.02711.00
5.2.50.0130.05311.02
5.2.40.0100.05710.98
5.2.30.0030.06710.88
5.2.20.0070.03310.79
5.2.10.0070.05310.82
5.2.00.0000.06310.68
5.1.60.0030.0509.93
5.1.50.0030.0279.82
5.1.40.0000.02710.00
5.1.30.0030.06010.33
5.1.20.0030.06010.35
5.1.10.0000.06310.05
5.1.00.0100.0479.98
5.0.50.0070.0438.57
5.0.40.0000.0438.39
5.0.30.0070.0608.36
5.0.20.0070.0438.24
5.0.10.0030.0478.19
5.0.00.0000.0708.13
4.4.90.0000.0207.43
4.4.80.0000.0377.43
4.4.70.0070.0337.43
4.4.60.0000.0377.43
4.4.50.0070.0307.43
4.4.40.0000.0407.43
4.4.30.0000.0277.43
4.4.20.0070.0277.43
4.4.10.0000.0337.43
4.4.00.0070.0507.43
4.3.110.0030.0337.43
4.3.100.0030.0377.43
4.3.90.0000.0237.43
4.3.80.0030.0507.43
4.3.70.0030.0337.43
4.3.60.0030.0337.43
4.3.50.0030.0377.43
4.3.40.0000.0537.43
4.3.30.0030.0377.43
4.3.20.0030.0307.43
4.3.10.0030.0237.43
4.3.00.0070.0177.43

preferences:
56.07 ms | 400 KiB | 5 Q