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 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)
8.3.60.0040.01118.43
8.3.50.0090.00721.09
8.3.40.0150.00018.84
8.3.30.0120.00320.37
8.3.20.0030.00620.20
8.3.10.0030.00621.09
8.3.00.0000.00822.38
8.2.180.0160.00016.63
8.2.170.0120.00322.96
8.2.160.0130.00722.08
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0050.00321.06
8.2.110.0110.00719.33
8.2.100.0040.00717.72
8.2.90.0030.00619.17
8.2.80.0050.00317.97
8.2.70.0050.00317.50
8.2.60.0050.00317.93
8.2.50.0000.00718.07
8.2.40.0050.00318.15
8.2.30.0000.00719.50
8.2.20.0070.00017.54
8.2.10.0070.00017.70
8.2.00.0040.00417.63
8.1.280.0100.01325.92
8.1.270.0000.00823.99
8.1.260.0050.00326.35
8.1.250.0080.00028.09
8.1.240.0090.00022.42
8.1.230.0030.00720.89
8.1.220.0060.00318.77
8.1.210.0080.00018.95
8.1.200.0060.00317.13
8.1.190.0000.00717.53
8.1.180.0000.01018.10
8.1.170.0090.00018.63
8.1.160.0040.00418.83
8.1.150.0000.00718.68
8.1.140.0000.00717.39
8.1.130.0030.00617.75
8.1.120.0030.00417.45
8.1.110.0000.00817.49
8.1.100.0000.00717.49
8.1.90.0040.00417.41
8.1.80.0040.00417.49
8.1.70.0030.00317.52
8.1.60.0040.00417.64
8.1.50.0000.00717.59
8.1.40.0030.00517.57
8.1.30.0040.00417.73
8.1.20.0040.00417.62
8.1.10.0030.00617.62
8.1.00.0040.00417.38
8.0.300.0000.00719.97
8.0.290.0050.00317.18
8.0.280.0050.00318.51
8.0.270.0030.00317.30
8.0.260.0030.00316.89
8.0.250.0000.00716.93
8.0.240.0030.00717.04
8.0.230.0000.00816.95
8.0.220.0000.00716.96
8.0.210.0000.00616.82
8.0.200.0030.00316.92
8.0.190.0000.00717.03
8.0.180.0070.00016.89
8.0.170.0040.00416.98
8.0.160.0040.00417.08
8.0.150.0070.00016.86
8.0.140.0070.00016.81
8.0.130.0050.00013.38
8.0.120.0000.00816.95
8.0.110.0050.00316.87
8.0.100.0090.00016.74
8.0.90.0080.00017.02
8.0.80.0130.00616.84
8.0.70.0070.00016.96
8.0.60.0040.00417.07
8.0.50.0050.00216.83
8.0.30.0060.01217.03
8.0.20.0160.00517.40
8.0.10.0000.00817.02
8.0.00.0090.01216.80
7.4.330.0000.00614.93
7.4.320.0070.00016.68
7.4.300.0060.00016.52
7.4.290.0030.00316.59
7.4.280.0070.00016.66
7.4.270.0070.00016.67
7.4.260.0050.00013.37
7.4.250.0070.00016.55
7.4.240.0040.00316.54
7.4.230.0030.00516.62
7.4.220.0100.01316.61
7.4.210.0070.00816.61
7.4.200.0070.00016.71
7.4.190.0030.00316.72
7.4.160.0060.00916.32
7.4.150.0110.00717.40
7.4.140.0080.01017.86
7.4.130.0020.01616.58
7.4.120.0130.00516.57
7.4.110.0110.00816.59
7.4.100.0060.01216.41
7.4.90.0110.00816.54
7.4.80.0070.01119.39
7.4.70.0190.00016.63
7.4.60.0130.00316.53
7.4.50.0060.00316.61
7.4.40.0100.00722.77
7.4.30.0100.00516.63
7.4.00.0090.00615.06
7.3.330.0030.00313.07
7.3.320.0000.00613.02
7.3.310.0030.00316.41
7.3.300.0040.00416.30
7.3.290.0090.00616.32
7.3.280.0060.00916.33
7.3.270.0090.00917.40
7.3.260.0120.00618.24
7.3.250.0090.01216.50
7.3.240.0130.00316.62
7.3.230.0140.00316.56
7.3.210.0000.01616.34
7.3.200.0150.00319.39
7.3.190.0070.01116.57
7.3.180.0080.00816.47
7.3.170.0070.01116.45
7.3.160.0070.01116.53
7.3.120.0070.01014.80
7.2.330.0140.00316.56
7.2.320.0000.01816.64
7.2.310.0130.00316.54
7.2.300.0120.00416.45
7.2.290.0090.00916.68
7.2.80.0080.00416.70
7.2.60.0030.01416.91
7.2.00.0090.00319.37
7.1.200.0000.01415.77
7.1.100.0000.01218.19
7.1.70.0030.00617.20
7.1.60.0130.01319.17
7.1.50.0250.00016.92
7.1.00.0000.08022.46
7.0.200.0030.00316.80
7.0.140.0070.06722.13
7.0.70.0100.07321.73
7.0.60.0130.07721.77
7.0.50.0030.08022.01
7.0.40.0100.08020.09
7.0.30.0030.08720.07
7.0.20.0030.07019.99
7.0.10.0070.08020.10
7.0.00.0030.08719.99
5.6.280.0000.07720.93
5.6.220.0000.08320.66
5.6.210.0030.07720.64
5.6.200.0130.03321.06
5.6.190.0030.07021.07
5.6.180.0070.05321.16
5.6.170.0030.09020.91
5.6.160.0070.05721.08
5.6.150.0000.08021.03
5.6.140.0070.03721.01
5.6.130.0070.05721.00
5.6.120.0130.07721.16
5.6.110.0070.08321.04
5.6.100.0030.07321.15
5.6.90.0130.06721.02
5.6.80.0070.08320.49
5.6.70.0070.07720.43
5.6.60.0030.08020.47
5.6.50.0070.08020.48
5.6.40.0070.07720.49
5.6.30.0030.08020.47
5.6.20.0100.07020.43
5.6.10.0030.08320.39
5.6.00.0000.05720.41
5.5.360.0100.07320.55
5.5.350.0030.08020.46
5.5.340.0000.08720.89
5.5.330.0070.08320.90
5.5.320.0070.08020.89
5.5.310.0070.04320.80
5.5.300.0000.04320.79
5.5.290.0030.04320.82
5.5.280.0030.08720.89
5.5.270.0170.06020.72
5.5.260.0070.05020.77
5.5.250.0070.04020.71
5.5.240.0070.07020.27
5.5.230.0000.08720.25
5.5.220.0100.07320.18
5.5.210.0030.06020.02
5.5.200.0030.06320.16
5.5.190.0070.06020.18
5.5.180.0030.07720.25
5.5.160.0100.03320.12
5.5.150.0100.05720.26
5.5.140.0070.06320.15
5.5.130.0070.08020.23
5.5.120.0070.05720.14
5.5.110.0070.08020.07
5.5.100.0100.07320.17
5.5.90.0130.06720.07
5.5.80.0000.06319.97
5.5.70.0170.06320.06
5.5.60.0030.07720.15
5.5.50.0000.07720.04
5.5.40.0070.08020.03
5.5.30.0000.08320.04
5.5.20.0170.07020.14
5.5.10.0000.05319.96
5.5.00.0070.08020.09
5.4.450.0000.05319.53
5.4.440.0030.08019.47
5.4.430.0030.07319.38
5.4.420.0030.07719.55
5.4.410.0000.08719.31
5.4.400.0070.07318.97
5.4.390.0030.06318.90
5.4.380.0070.07019.12
5.4.370.0070.06719.03
5.4.360.0130.06719.09
5.4.350.0000.08019.14
5.4.340.0100.06719.12
5.4.320.0070.08019.02
5.4.310.0000.06019.11
5.4.300.0070.06718.98
5.4.290.0070.07319.06
5.4.280.0000.08318.96
5.4.270.0030.07718.98
5.4.260.0100.07019.07
5.4.250.0070.07719.14
5.4.240.0030.07719.11
5.4.230.0000.08019.11
5.4.220.0000.06019.05
5.4.210.0030.05018.89
5.4.200.0070.05019.02
5.4.190.0070.05719.07
5.4.180.0000.05319.02
5.4.170.0070.06719.11
5.4.160.0000.08318.76
5.4.150.0070.08019.21
5.4.140.0030.05716.39
5.4.130.0030.04716.36
5.4.120.0100.07316.36
5.4.110.0130.07016.33
5.4.100.0100.07016.38
5.4.90.0100.06316.32
5.4.80.0100.07316.34
5.4.70.0030.07716.42
5.4.60.0030.06716.42
5.4.50.0130.06716.36
5.4.40.0130.02716.37
5.4.30.0030.05316.26
5.4.20.0030.07716.21
5.4.10.0070.07316.30
5.4.00.0030.07715.73
5.3.290.0000.08714.52
5.3.280.0070.06314.57
5.3.270.0000.08014.57
5.3.260.0100.07014.46
5.3.250.0000.05014.42
5.3.240.0070.07314.57
5.3.230.0000.07314.53
5.3.220.0000.08014.58
5.3.210.0100.07714.47
5.3.200.0030.07314.43
5.3.190.0070.05314.51
5.3.180.0030.06314.43
5.3.170.0030.07714.43
5.3.160.0100.05014.55
5.3.150.0070.04714.55
5.3.140.0070.08014.56
5.3.130.0070.03714.36
5.3.120.0100.03714.54
5.3.110.0030.08014.41
5.3.100.0100.06713.99
5.3.90.0130.06713.97
5.3.80.0030.06314.00
5.3.70.0030.07014.01
5.3.60.0070.06313.96
5.3.50.0100.07013.90
5.3.40.0070.07313.70
5.3.30.0030.08313.66
5.3.20.0070.07313.64
5.3.10.0070.06713.50
5.3.00.0030.08013.59
5.2.170.0030.04312.39
5.2.160.0030.06012.39
5.2.150.0000.04712.39
5.2.140.0130.05312.39
5.2.130.0030.06012.39
5.2.120.0030.06012.39
5.2.110.0000.04312.39
5.2.100.0070.06012.39
5.2.90.0100.05312.39
5.2.80.0030.05312.39
5.2.70.0070.04012.39
5.2.60.0000.04312.39
5.2.50.0030.06012.39
5.2.40.0100.05712.39
5.2.30.0070.05312.39
5.2.20.0070.06012.39
5.2.10.0070.05712.39
5.2.00.0070.06012.39
5.1.60.0000.04312.39
5.1.50.0030.03712.39
5.1.40.0030.05312.39
5.1.30.0030.04712.39
5.1.20.0100.04712.39
5.1.10.0000.05012.39
5.1.00.0100.05312.39
5.0.50.0000.05012.39
5.0.40.0000.04312.39
5.0.30.0030.04012.39
5.0.20.0000.04712.39
5.0.10.0070.04012.39
5.0.00.0000.06312.39
4.4.90.0000.03312.39
4.4.80.0000.03712.39
4.4.70.0030.03312.39
4.4.60.0000.03712.39
4.4.50.0030.03012.39
4.4.40.0030.05012.39
4.4.30.0000.03712.39
4.4.20.0000.03012.39
4.4.10.0000.03712.39
4.4.00.0000.05312.39
4.3.110.0030.03312.39
4.3.100.0000.01712.39
4.3.90.0000.03312.39
4.3.80.0030.05012.39
4.3.70.0030.03312.39
4.3.60.0030.02712.39
4.3.50.0000.02712.39
4.3.40.0030.05012.39
4.3.30.0030.03712.39
4.3.20.0000.02712.39
4.3.10.0000.03312.39
4.3.00.0000.02712.39

preferences:
31.26 ms | 400 KiB | 5 Q