3v4l.org

run code in 300+ PHP versions simultaneously
<?php function documentNotUTF8($content) { $exprs = array( '#<\?xml[^>]+encoding=([\'"])[Uu][Tt][Ff]-8\1#U', '#<meta\s+(?:(?:name\s*=\s*([\'"])http_equiv\1\s*)|(?:content\s*=\s*([\'"])text/html\s*;.*charset\s*=\s*utf-?8.*\2\s*)){2}#Ui', ); foreach ($exprs as $expr) { if ( $match = preg_match($expr, $content) ) { break; } } return (bool) $match; } $content = array( <<<HTML <?xml version="1.0" encoding="foo"?> <HTML> <!-- $Revision: 317718 $ --> <HEAD> <TITLE>PHP Manual</TITLE> <LINK REL="STYLESHEET" HREF="style.css"> </HEAD> HTML , <<<HTML <HTML> <!-- $Revision: 317718 $ --> <HEAD> <TITLE>PHP Manual</TITLE> <META NAME="HTTP_EQUIV" CONTENT="text/html; charset=UTF-8"> <LINK REL="STYLESHEET" HREF="style.css"> </HEAD> HTML , <<<HTML <?xml version="1.0" encoding="foo" bar="baz"?> <HTML> <!-- $Revision: 317718 $ --> <HEAD> <TITLE>PHP Manual</TITLE> <LINK REL="STYLESHEET" HREF="style.css"> </HEAD> HTML , <<<HTML <HTML> <!-- $Revision: 317718 $ --> <HEAD> <TITLE>PHP Manual</TITLE> <META CONTENT="text/html; charset=UTF-8" NAME="HTTP_EQUIV"> <LINK REL="STYLESHEET" HREF="style.css"> </HEAD> HTML , <<<HTML <HTML> <!-- $Revision: 317718 $ --> <HEAD> <TITLE>PHP Manual</TITLE> <META NAME="HTTP_EQUIV" CONTENT="text/html; charset=UTF-8"> <LINK REL="STYLESHEET" HREF="style.css"> </HEAD> HTML , <<<HTML <HTML> <!-- $Revision: 317718 $ --> <HEAD> <TITLE>PHP Manual</TITLE> <META NAME="HTTP_EQUIV" CONTENT="text/html; stuff=things, charset=UTF-8, otherparam=foo"> <LINK REL="STYLESHEET" HREF="style.css"> </HEAD> HTML , <<<HTML <HTML> <!-- $Revision: 317718 $ --> <HEAD> <TITLE>PHP Manual</TITLE> <LINK REL="STYLESHEET" HREF="style.css"> </HEAD> HTML ); foreach ($content as $str) { var_dump(documentNotUTF8($content)); }

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)
8.3.60.0180.00318.55
8.3.50.0100.01021.92
8.3.40.0160.00618.88
8.3.30.0120.00418.75
8.3.20.0080.00018.90
8.3.10.0040.00421.04
8.3.00.0050.00221.77
8.2.180.0060.01318.41
8.2.170.0070.00722.96
8.2.160.0070.00720.39
8.2.150.0060.00324.18
8.2.140.0050.00324.66
8.2.130.0080.00026.16
8.2.120.0000.00821.04
8.2.110.0030.00721.03
8.2.100.0040.00718.03
8.2.90.0000.00819.20
8.2.80.0040.00417.97
8.2.70.0090.00317.50
8.2.60.0000.00818.05
8.2.50.0050.00318.07
8.2.40.0030.00618.09
8.2.30.0040.00419.41
8.2.20.0060.00317.65
8.2.10.0080.00017.89
8.2.00.0040.00417.70
8.1.280.0110.00425.92
8.1.270.0000.00823.99
8.1.260.0040.00426.35
8.1.250.0050.00228.09
8.1.240.0120.00017.76
8.1.230.0070.00420.93
8.1.220.0040.00418.77
8.1.210.0030.00518.89
8.1.200.0100.00017.23
8.1.190.0080.00017.63
8.1.180.0040.00418.10
8.1.170.0080.00018.69
8.1.160.0020.00518.96
8.1.150.0040.00418.66
8.1.140.0000.00717.43
8.1.130.0030.00317.73
8.1.120.0040.00417.49
8.1.110.0080.00017.41
8.1.100.0040.00417.50
8.1.90.0000.00717.45
8.1.80.0040.00417.50
8.1.70.0000.00717.44
8.1.60.0000.00917.59
8.1.50.0070.00017.41
8.1.40.0040.00417.52
8.1.30.0000.00817.57
8.1.20.0050.00317.53
8.1.10.0020.00517.58
8.1.00.0000.00817.52
8.0.300.0080.00019.85
8.0.290.0070.00017.05
8.0.280.0030.00318.44
8.0.270.0000.00717.29
8.0.260.0000.00716.91
8.0.250.0040.00416.92
8.0.240.0030.00717.01
8.0.230.0070.00017.09
8.0.220.0080.00016.96
8.0.210.0040.00416.82
8.0.200.0030.00316.94
8.0.190.0070.00016.98
8.0.180.0040.00416.90
8.0.170.0030.00517.01
8.0.160.0000.00717.00
8.0.150.0030.00516.90
8.0.140.0040.00416.97
8.0.130.0000.00513.30
8.0.120.0050.00216.93
8.0.110.0000.00717.09
8.0.100.0040.00416.80
8.0.90.0000.00816.94
8.0.80.0060.01016.94
8.0.70.0030.00516.85
8.0.60.0050.00317.04
8.0.50.0000.00817.10
8.0.30.0130.00617.11
8.0.20.0120.00917.40
8.0.10.0040.00417.18
8.0.00.0100.00816.68
7.4.330.0000.00516.84
7.4.320.0030.00316.67
7.4.300.0040.00416.48
7.4.290.0080.00016.52
7.4.280.0000.00716.54
7.4.270.0030.00316.55
7.4.260.0000.00713.30
7.4.250.0000.00916.51
7.4.240.0030.00316.43
7.4.230.0050.00316.43
7.4.220.0000.01516.51
7.4.210.0070.00716.68
7.4.200.0000.00716.70
7.4.190.0030.00316.67
7.4.160.0160.00616.68
7.4.150.0060.01117.40
7.4.140.0110.01117.86
7.4.130.0070.01116.60
7.4.120.0080.01016.55
7.4.110.0000.01816.57
7.4.100.0060.01216.58
7.4.90.0090.00916.58
7.4.80.0060.01419.39
7.4.70.0100.00616.54
7.4.60.0030.01316.62
7.4.50.0040.00416.24
7.4.40.0060.00922.77
7.4.30.0120.00316.57
7.4.00.0110.00615.07
7.3.330.0050.00013.41
7.3.320.0030.00213.46
7.3.310.0060.00316.49
7.3.300.0040.00416.46
7.3.290.0080.00616.43
7.3.280.0060.01016.45
7.3.270.0100.01017.40
7.3.260.0120.00818.24
7.3.250.0070.01416.49
7.3.240.0090.00616.54
7.3.230.0040.01316.51
7.3.210.0130.00316.54
7.3.200.0070.01319.39
7.3.190.0060.01116.58
7.3.180.0090.00616.63
7.3.170.0130.00316.38
7.3.160.0060.00916.50
7.3.120.0080.00914.87
7.3.110.0040.01414.74
7.3.100.0040.01514.75
7.3.90.0030.01014.98
7.3.80.0090.00614.85
7.3.70.0040.01414.60
7.3.60.0040.01114.72
7.3.50.0000.01114.93
7.3.40.0060.00814.88
7.3.30.0060.00614.93
7.3.20.0070.00716.70
7.3.10.0030.00716.64
7.3.00.0040.01116.73
7.2.330.0090.00916.77
7.2.320.0110.00716.77
7.2.310.0140.00316.60
7.2.300.0130.00416.53
7.2.290.0080.00816.59
7.2.250.0060.01215.14
7.2.240.0040.01414.98
7.2.230.0040.01214.93
7.2.220.0080.00814.95
7.2.210.0080.00314.79
7.2.200.0100.01015.03
7.2.190.0060.00914.89
7.2.180.0030.01114.93
7.2.170.0000.01315.19
7.2.160.0140.00015.02
7.2.150.0110.00416.90
7.2.140.0070.00716.75
7.2.130.0000.01517.02
7.2.120.0030.01016.67
7.2.110.0110.00416.90
7.2.100.0100.00316.68
7.2.90.0000.01216.76
7.2.80.0070.01017.07
7.2.70.0040.01217.08
7.2.60.0040.01316.89
7.2.50.0060.00916.81
7.2.40.0000.01316.77
7.2.30.0090.00617.01
7.2.20.0030.00616.98
7.2.10.0090.00616.86
7.2.00.0060.00816.91
7.1.330.0030.01615.79
7.1.320.0070.00715.85
7.1.310.0000.01115.75
7.1.300.0090.00315.51
7.1.290.0090.00615.56
7.1.280.0000.01415.86
7.1.270.0040.00415.83
7.1.260.0000.01515.86
7.1.250.0030.00715.88
7.1.240.0070.00715.46
7.1.230.0060.00615.65
7.1.220.0120.00015.80
7.1.210.0060.00615.78
7.1.200.0060.00615.83
7.1.190.0070.00715.85
7.1.180.0080.00415.80
7.1.170.0070.00715.90
7.1.160.0090.00315.95
7.1.150.0070.01015.69
7.1.140.0000.01415.61
7.1.130.0000.01415.68
7.1.120.0060.00615.71
7.1.110.0100.00715.70
7.1.100.0060.00817.11
7.1.90.0030.00615.92
7.1.80.0060.00315.75
7.1.70.0050.00516.56
7.1.60.0080.01217.64
7.1.50.0130.01325.30
7.1.40.0060.00815.75
7.1.30.0030.01015.87
7.1.20.0070.01015.86
7.1.10.0060.00615.89
7.1.00.0080.03519.13
7.0.330.0060.00315.21
7.0.320.0000.01315.29
7.0.310.0070.00715.25
7.0.300.0030.00715.28
7.0.290.0090.00615.46
7.0.280.0060.00615.43
7.0.270.0000.00815.60
7.0.260.0040.01115.43
7.0.250.0090.00915.42
7.0.240.0040.01215.54
7.0.230.0000.01015.25
7.0.220.0070.00715.41
7.0.210.0030.01315.31
7.0.200.0060.00516.23
7.0.190.0100.00315.42
7.0.180.0070.00715.21
7.0.170.0050.00515.50
7.0.160.0000.01215.10
7.0.150.0070.00715.38
7.0.140.0050.03818.77
7.0.130.0030.01015.30
7.0.120.0030.00915.27
7.0.110.0030.00615.62
7.0.100.0000.01315.25
7.0.90.0030.00715.52
7.0.80.0030.00915.49
7.0.70.0070.01918.49
7.0.60.0090.01718.51
7.0.50.0050.02318.89
7.0.40.0070.01716.66
7.0.30.0050.02016.78
7.0.20.0120.01516.75
7.0.10.0080.02016.55
7.0.00.0030.02616.87
5.6.400.0000.01414.57
5.6.390.0030.00914.63
5.6.380.0100.00613.98
5.6.370.0120.00014.67
5.6.360.0030.00614.18
5.6.350.0030.00614.36
5.6.340.0060.00614.66
5.6.330.0000.01314.55
5.6.320.0030.01014.50
5.6.310.0000.01414.27
5.6.300.0070.00714.40
5.6.290.0040.00813.86
5.6.280.0030.04317.74
5.6.270.0040.01114.53
5.6.260.0030.01014.38
5.6.250.0110.00414.59
5.6.240.0030.00514.12
5.6.230.0070.00714.48
5.6.220.0040.02117.65
5.6.210.0090.01717.38
5.6.200.0030.02217.59
5.6.190.0040.02217.75
5.6.180.0040.02617.74
5.6.170.0070.02017.74
5.6.160.0020.02417.71
5.6.150.0000.02717.54
5.6.140.0050.04817.63
5.6.130.0030.03917.72
5.6.120.0120.03817.85
5.6.110.0070.04717.71
5.6.100.0040.03717.59
5.6.90.0050.04917.66
5.6.80.0040.04917.21
5.6.70.0040.04517.39
5.6.60.0050.03517.28
5.6.50.0080.03917.27
5.6.40.0080.04117.21
5.6.30.0070.04017.46
5.6.20.0070.04217.38
5.6.10.0050.04217.47
5.6.00.0000.04917.47
5.5.380.0030.01214.30
5.5.370.0090.00614.38
5.5.360.0020.02017.42
5.5.350.0050.02217.32
5.5.340.0030.02617.70
5.5.330.0050.02017.74
5.5.320.0050.02617.43
5.5.310.0030.02317.56
5.5.300.0070.04217.29
5.5.290.0080.04317.67
5.5.280.0170.03717.64
5.5.270.0040.04517.56
5.5.260.0050.04717.53
5.5.250.0080.03717.48
5.5.240.0030.04917.20
5.5.230.0000.04416.94
5.5.220.0070.04417.00
5.5.210.0080.03317.23
5.5.200.0080.04017.07
5.5.190.0020.05017.29
5.5.180.0030.04417.33
5.5.170.0090.00613.84
5.5.160.0020.02517.27
5.5.150.0070.02517.25
5.5.140.0080.03817.05
5.5.130.0070.02017.10
5.5.120.0060.03417.22
5.5.110.0050.03217.14
5.5.100.0070.02416.92
5.5.90.0090.03017.13
5.5.80.0050.02617.11
5.5.70.0060.04017.22
5.5.60.0070.04016.88
5.5.50.0050.04716.95
5.5.40.0050.04617.13
5.5.30.0020.04216.94
5.5.20.0090.02417.13
5.5.10.0040.02217.00
5.5.00.0050.02317.03
5.4.450.0130.03716.31
5.4.440.0000.04916.35
5.4.430.0050.04216.32
5.4.420.0150.03516.24
5.4.410.0100.03816.14
5.4.400.0080.03416.14
5.4.390.0060.04316.16
5.4.380.0050.04416.16
5.4.370.0070.03716.07
5.4.360.0030.04316.12
5.4.350.0030.04116.03
5.4.340.0080.03315.99
5.4.330.0090.00313.14
5.4.320.0040.04016.09
5.4.310.0030.02516.15
5.4.300.0080.03616.09
5.4.290.0030.03416.09
5.4.280.0030.02816.02
5.4.270.0000.04816.12
5.4.260.0050.03816.12
5.4.250.0060.04016.09
5.4.240.0110.02216.04
5.4.230.0030.02215.99
5.4.220.0030.03516.13
5.4.210.0050.04216.02
5.4.200.0070.04016.17
5.4.190.0050.03016.02
5.4.180.0090.02516.02
5.4.170.0050.03316.13
5.4.160.0070.02216.18
5.4.150.0050.04316.01
5.4.140.0050.02314.77
5.4.130.0050.03714.67
5.4.120.0060.02814.71
5.4.110.0130.02014.79
5.4.100.0030.04214.84
5.4.90.0040.02814.84
5.4.80.0030.04014.76
5.4.70.0060.02514.70
5.4.60.0070.04014.76
5.4.50.0070.03814.73
5.4.40.0050.02714.73
5.4.30.0070.03714.77
5.4.20.0090.03614.73
5.4.10.0030.02214.74
5.4.00.0070.02014.47
5.3.290.0050.03413.91
5.3.280.0110.03613.85
5.3.270.0060.04313.85
5.3.260.0020.04513.86
5.3.250.0060.03313.93
5.3.240.0040.04113.93
5.3.230.0050.04113.88
5.3.220.0050.04113.82
5.3.210.0040.04213.88
5.3.200.0070.03713.85
5.3.190.0020.02413.89
5.3.180.0050.03813.92
5.3.170.0030.03013.82
5.3.160.0020.04313.92
5.3.150.0060.03813.82
5.3.140.0030.03313.84
5.3.130.0000.02513.82
5.3.120.0050.02213.91
5.3.110.0000.02613.83
5.3.100.0060.04013.59
5.3.90.0030.03513.60
5.3.80.0030.04013.58
5.3.70.0100.03713.58
5.3.60.0000.04113.58
5.3.50.0030.03813.54
5.3.40.0070.04013.54
5.3.30.0030.02013.53
5.3.20.0030.04213.38
5.3.10.0020.04013.41
5.3.00.0020.04313.34
5.2.170.0070.06311.15
5.2.160.0030.06011.23
5.2.150.0000.05711.24
5.2.140.0030.04011.23
5.2.130.0070.05711.12
5.2.120.0070.05711.12
5.2.110.0100.05310.96
5.2.100.0030.06011.00
5.2.90.0030.06711.17
5.2.80.0130.05711.04
5.2.70.0070.05311.18
5.2.60.0100.04711.04
5.2.50.0100.07011.14
5.2.40.0030.06311.06
5.2.30.0000.06710.86
5.2.20.0000.05310.94
5.2.10.0000.06311.03
5.2.00.0070.06310.92
5.1.60.0030.05310.56
5.1.50.0030.05310.56
5.1.40.0070.05310.56
5.1.30.0030.04710.56
5.1.20.0070.05310.56
5.1.10.0100.05310.56
5.1.00.0100.03310.56
5.0.50.0030.04310.56
5.0.40.0030.04710.56
5.0.30.0030.06010.56
5.0.20.0000.04310.56
5.0.10.0100.03710.56
5.0.00.0030.05310.56
4.4.90.0000.03710.56
4.4.80.0000.03710.56
4.4.70.0000.02710.56
4.4.60.0000.02310.56
4.4.50.0030.03710.56
4.4.40.0030.05310.56
4.4.30.0000.03310.56
4.4.20.0030.03710.56
4.4.10.0000.04010.56
4.4.00.0030.05010.56
4.3.110.0030.03010.56
4.3.100.0070.02010.56
4.3.90.0030.03010.56
4.3.80.0000.05710.56
4.3.70.0000.03310.56
4.3.60.0000.03710.56
4.3.50.0000.02710.56
4.3.40.0030.05010.56
4.3.30.0000.04010.56
4.3.20.0000.03710.56
4.3.10.0000.04010.56
4.3.00.0000.03710.56

preferences:
43.03 ms | 401 KiB | 5 Q