3v4l.org

run code in 300+ PHP versions simultaneously
<?php function utf8_scrub($str, $substitute = "\xE3\x80\x93") { $regex = '/ ([\x00-\x7F] # U+0000 - U+007F |[\xC2-\xDF][\x80-\xBF] # U+0080 - U+07FF | \xE0[\xA0-\xBF][\x80-\xBF] # U+0800 - U+0FFF |[\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} # U+1000 - U+CFFF | \xED[\x80-\x9F][\x80-\xBF] # U+D000 - U+D7FF | \xF0[\x90-\xBF][\x80-\xBF]{2} # U+10000 - U+3FFFF |[\xF1-\xF3][\x80-\xBF]{3} # U+40000 - U+FFFFF | \xF4[\x80-\x8F][\x80-\xBF]{2}) # U+100000 - U+10FFFF |(\xE0[\xA0-\xBF] # U+0800 - U+0FFF (invalid) |[\xE1-\xEC\xEE\xEF][\x80-\xBF] # U+1000 - U+CFFF (invalid) | \xED[\x80-\x9F] # U+D000 - U+D7FF (invalid) | \xF0[\x90-\xBF][\x80-\xBF]? # U+10000 - U+3FFFF (invalid) |[\xF1-\xF3][\x80-\xBF]{1,2} # U+40000 - U+FFFFF (invalid) | \xF4[\x80-\x8F][\x80-\xBF]?) # U+100000 - U+10FFFF (invalid) |(.) # invalid 1-byte /xs'; // $matches[1]: valid character // $matches[2]: invalid 3-byte or 4-byte character // $matches[3]: invalid 1-byte $ret = preg_replace_callback( $regex, function ($matches) use ($substitute) { if (isset($matches[2]) || isset($matches[3])) { return $substitute; } return $matches[1]; }, $str ); return $ret; } $examples = array( 'Valid ASCII' => "a", 'Valid 2 Octet Sequence' => "\xc3\xb1", 'Invalid 2 Octet Sequence' => "\xc3\x28", 'Invalid Sequence Identifier' => "\xa0\xa1", 'Valid 3 Octet Sequence' => "\xe2\x82\xa1", 'Invalid 3 Octet Sequence (in 2nd Octet)' => "\xe2\x28\xa1", 'Invalid 3 Octet Sequence (in 3rd Octet)' => "\xe2\x82\x28", 'Valid 4 Octet Sequence' => "\xf0\x90\x8c\xbc", 'Invalid 4 Octet Sequence (in 2nd Octet)' => "\xf0\x28\x8c\xbc", 'Invalid 4 Octet Sequence (in 3rd Octet)' => "\xf0\x90\x28\xbc", 'Invalid 4 Octet Sequence (in 4th Octet)' => "\xf0\x28\x8c\x28", 'Valid 5 Octet Sequence (but not Unicode!)' => "\xf8\xa1\xa1\xa1\xa1", 'Valid 6 Octet Sequence (but not Unicode!)' => "\xfc\xa1\xa1\xa1\xa1\xa1", ); foreach ($examples as $k => $v) { echo "{$k}\n"; echo utf8_scrub($v); 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)
8.3.60.0120.00318.30
8.3.50.0090.00821.27
8.3.40.0110.00418.94
8.3.30.0130.00720.34
8.3.20.0080.00020.20
8.3.10.0080.00021.27
8.3.00.0070.00022.48
8.2.180.0170.00716.88
8.2.170.0120.00322.96
8.2.160.0070.00722.23
8.2.150.0000.00824.18
8.2.140.0120.00324.66
8.2.130.0040.00426.16
8.2.120.0040.00420.80
8.2.110.0090.00319.22
8.2.100.0120.00317.84
8.2.90.0040.00419.35
8.2.80.0080.00017.97
8.2.70.0000.00817.75
8.2.60.0030.00618.04
8.2.50.0040.00418.07
8.2.40.0000.00918.15
8.2.30.0000.00719.36
8.2.20.0070.00018.01
8.2.10.0080.00018.00
8.2.00.0000.00818.09
8.1.280.0100.00725.92
8.1.270.0050.00323.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0070.00322.46
8.1.230.0090.00320.96
8.1.220.0030.00618.77
8.1.210.0080.00020.84
8.1.200.0030.00617.35
8.1.190.0000.00817.43
8.1.180.0090.00518.10
8.1.170.0050.00318.63
8.1.160.0040.00418.89
8.1.150.0000.00718.81
8.1.140.0080.00017.63
8.1.130.0030.00617.75
8.1.120.0070.00017.68
8.1.110.0000.00817.63
8.1.100.0040.00417.54
8.1.90.0080.00017.60
8.1.80.0000.00717.56
8.1.70.0030.00317.59
8.1.60.0030.00617.76
8.1.50.0050.00317.59
8.1.40.0080.00017.64
8.1.30.0040.00417.82
8.1.20.0000.00917.79
8.1.10.0000.00717.66
8.1.00.0080.00017.58
8.0.300.0000.00720.02
8.0.290.0040.00417.18
8.0.280.0030.00318.48
8.0.270.0000.00717.25
8.0.260.0040.00416.89
8.0.250.0030.00317.15
8.0.240.0060.00317.00
8.0.230.0070.00017.12
8.0.220.0000.00817.12
8.0.210.0070.00017.00
8.0.200.0070.00017.12
8.0.190.0070.00017.05
8.0.180.0000.00817.11
8.0.170.0060.00317.11
8.0.160.0040.00416.94
8.0.150.0070.00017.02
8.0.140.0070.00016.98
8.0.130.0000.00613.50
8.0.120.0000.00817.04
8.0.110.0070.00017.11
8.0.100.0040.00416.98
8.0.90.0070.00016.95
8.0.80.0070.01317.03
8.0.70.0040.00417.04
8.0.60.0000.00817.12
8.0.50.0000.00817.05
8.0.30.0070.01117.37
8.0.20.0160.00917.40
8.0.10.0000.00717.05
8.0.00.0120.00716.93
7.4.330.0030.00314.95
7.4.320.0060.00016.82
7.4.300.0000.00616.81
7.4.290.0030.00316.85
7.4.280.0070.00016.83
7.4.270.0030.00516.71
7.4.260.0050.00013.43
7.4.250.0040.00416.61
7.4.240.0020.00616.78
7.4.230.0030.00316.63
7.4.220.0030.01316.90
7.4.210.0100.00716.81
7.4.200.0030.00316.57
7.4.190.0000.00716.84
7.4.160.0100.00716.55
7.4.150.0130.00317.40
7.4.140.0100.00817.86
7.4.130.0070.01016.75
7.4.120.0040.01516.68
7.4.110.0080.01216.80
7.4.100.0100.00716.58
7.4.90.0140.01016.68
7.4.80.0100.01319.39
7.4.70.0130.00916.88
7.4.60.0160.00016.93
7.4.50.0030.00616.64
7.4.40.0050.00522.77
7.4.30.0100.00716.71
7.4.00.0060.00615.00
7.3.330.0050.00013.34
7.3.320.0060.00013.29
7.3.310.0070.00016.43
7.3.300.0070.00016.54
7.3.290.0080.00816.49
7.3.280.0060.01316.43
7.3.270.0060.01217.40
7.3.260.0080.01318.24
7.3.250.0130.00916.61
7.3.240.0090.00916.81
7.3.230.0180.00016.69
7.3.210.0080.00816.84
7.3.200.0170.00319.39
7.3.190.0170.00316.54
7.3.180.0090.00616.79
7.3.170.0100.00716.66
7.3.160.0080.00816.47
7.3.120.0040.01414.63
7.2.330.0110.00816.99
7.2.320.0030.02016.98
7.2.310.0110.00716.86
7.2.300.0070.01617.03
7.2.290.0000.01816.94
7.2.60.0070.00717.04
7.2.00.0030.00719.76
7.1.200.0040.01115.84
7.1.100.0060.00618.32
7.1.70.0030.00517.18
7.1.60.0060.00919.17
7.1.50.0130.01017.35
7.1.00.0030.06722.38
7.0.200.0000.00916.65
7.0.140.0030.07322.09
7.0.60.0070.07320.04
7.0.50.0100.08317.81
7.0.40.0100.07720.44
7.0.30.0300.06320.26
7.0.20.0300.07020.10
7.0.10.0070.05020.13
7.0.00.0070.08020.09
5.6.280.0100.07020.91
5.6.210.0030.07320.76
5.6.200.0070.08018.17
5.6.190.0100.07020.63
5.6.180.0400.04020.77
5.6.170.0230.07720.56
5.6.160.0030.05320.48
5.6.150.0070.07318.23
5.6.140.0130.07318.19
5.6.130.0070.08318.18
5.6.120.0000.04320.98
5.6.110.0170.05721.14
5.6.100.0100.08021.01
5.6.90.0030.05020.98
5.6.80.0100.03720.39
5.5.350.0300.06320.54
5.5.340.0130.07317.98
5.5.330.0100.06020.32
5.5.320.0100.08020.34
5.5.310.0270.03020.31
5.5.300.0070.04317.91
5.5.290.0030.04318.01
5.5.280.0130.06320.88
5.5.270.0070.08720.98
5.5.260.0070.08020.96
5.5.250.0000.05020.70
5.5.240.0300.06720.27
5.4.450.0300.06019.31
5.4.440.0230.08719.18
5.4.430.0230.07019.31
5.4.420.0230.07019.52
5.4.410.0270.05019.42
5.4.400.0300.06319.25
5.4.390.0200.04018.85
5.4.380.0270.03019.09
5.4.370.0170.05718.86
5.4.360.0170.04319.25
5.4.350.0230.07719.22
5.4.340.0270.07019.23
5.4.320.0170.07019.31
5.4.310.0230.06019.23
5.4.300.0200.06719.22
5.4.290.0230.06018.98
5.4.280.0370.05719.21
5.4.270.0200.07319.08
5.4.260.0130.05719.13
5.4.250.0230.05718.84
5.4.240.0300.04319.16
5.4.230.0170.08019.08
5.4.220.0170.05719.31
5.4.210.0170.04719.07
5.4.200.0270.04319.23
5.4.190.0430.04318.93
5.4.180.0300.05319.05
5.4.170.0270.04319.13
5.4.160.0200.06718.98
5.4.150.0330.04019.22
5.4.140.0270.04716.52
5.4.130.0270.05316.28
5.4.120.0200.04016.29
5.4.110.0200.07016.52
5.4.100.0170.04316.37
5.4.90.0270.04316.55
5.4.80.0330.05716.62
5.4.70.0200.07716.44
5.4.60.0230.07016.53
5.4.50.0100.06016.50
5.4.40.0330.03316.38
5.4.30.0270.06716.24
5.4.20.0230.05016.48
5.4.10.0370.06716.42
5.4.00.0230.06015.90
5.3.290.0270.05314.61
5.3.280.0170.05014.56
5.3.270.0200.06014.63
5.3.260.0200.06014.73
5.3.250.0200.03714.52
5.3.240.0230.07714.70
5.3.230.0200.06014.72
5.3.220.0330.06314.57
5.3.210.0270.03714.48
5.3.200.0230.04014.81
5.3.190.0230.07014.48
5.3.180.0300.06714.57
5.3.170.0330.08014.57
5.3.160.0170.07314.48
5.3.150.0170.06714.55
5.3.140.0300.03714.68
5.3.130.0300.07314.56
5.3.120.0330.06014.48
5.3.110.0270.07314.64
5.3.100.0270.06014.02
5.3.90.0200.04313.94
5.3.80.0230.07014.07
5.3.70.0200.05314.07
5.3.60.0300.04714.13
5.3.50.0300.06313.98
5.3.40.0200.06314.04
5.3.30.0170.05013.89
5.3.20.0300.07013.70
5.3.10.0170.05713.75
5.3.00.0100.05713.63
5.2.170.0100.04712.03
5.2.160.0200.03712.03
5.2.150.0300.06312.03
5.2.140.0300.06012.03
5.2.130.0270.05312.03
5.2.120.0230.04012.03
5.2.110.0170.04012.03
5.2.100.0170.04012.03
5.2.90.0200.04012.03
5.2.80.0200.05712.03
5.2.70.0170.04012.03
5.2.60.0370.04312.03
5.2.50.0200.02712.03
5.2.40.0300.03312.03
5.2.30.0200.05712.03
5.2.20.0370.05312.03
5.2.10.0230.06012.03
5.2.00.0270.06012.03
5.1.60.0170.03312.03
5.1.50.0200.04712.03
5.1.40.0200.03712.03
5.1.30.0170.05312.03
5.1.20.0170.03012.03
5.1.10.0230.03312.03
5.1.00.0170.03312.03
5.0.50.0070.04312.03
5.0.40.0100.04012.03
5.0.30.0070.05312.03
5.0.20.0100.04012.03
5.0.10.0130.02312.03
5.0.00.0070.05712.03
4.4.90.0130.02012.03
4.4.80.0030.01712.03
4.4.70.0130.03312.03
4.4.60.0070.03312.03
4.4.50.0070.03012.03
4.4.40.0130.04712.03
4.4.30.0070.03312.03
4.4.20.0030.02712.03
4.4.10.0070.02312.03
4.4.00.0070.05712.03
4.3.110.0200.02712.03
4.3.100.0070.03312.03
4.3.90.0130.02312.03
4.3.80.0100.04312.03
4.3.70.0030.02312.03
4.3.60.0030.03012.03
4.3.50.0100.01712.03
4.3.40.0030.05012.03
4.3.30.0030.03012.03
4.3.20.0030.03712.03
4.3.10.0030.02312.03
4.3.00.0030.03312.03

preferences:
41.73 ms | 401 KiB | 5 Q