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", ); echo "++Invalid UTF-8 in pattern\n"; foreach ( $examples as $name => $str ) { echo "$name\n"; preg_match("/".$str."/u",'Testing'); } echo "++ preg_match() examples\n"; foreach ( $examples as $name => $str ) { preg_match("/\xf8\xa1\xa1\xa1\xa1/u", $str, $ar); echo "$name: "; if ( count($ar) == 0 ) { echo "Matched nothing!\n"; } else { echo "Matched {$ar[0]}\n"; } } echo "++ preg_match_all() examples\n"; foreach ( $examples as $name => $str ) { preg_match_all('/./u', $str, $ar); echo "$name: "; $num_utf8_chars = count($ar[0]); if ( $num_utf8_chars == 0 ) { echo "Matched nothing!\n"; } else { echo "Matched $num_utf8_chars character\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)
8.3.60.0130.00618.55
8.3.50.0110.01121.20
8.3.40.0040.01219.04
8.3.30.0110.00720.23
8.3.20.0030.00518.82
8.3.10.0000.00921.23
8.3.00.0070.00023.66
8.2.180.0160.00617.00
8.2.170.0150.00022.96
8.2.160.0100.00720.35
8.2.150.0030.00524.18
8.2.140.0000.00824.66
8.2.130.0080.00026.16
8.2.120.0080.00019.95
8.2.110.0090.00022.38
8.2.100.0070.00418.03
8.2.90.0050.00319.05
8.2.80.0000.00819.21
8.2.70.0030.00617.88
8.2.60.0030.00517.93
8.2.50.0000.00818.07
8.2.40.0050.00318.28
8.2.30.0030.00519.50
8.2.20.0000.00717.84
8.2.10.0040.00418.16
8.2.00.0000.00917.97
8.1.280.0150.00625.92
8.1.270.0080.00023.99
8.1.260.0040.00426.35
8.1.250.0090.00028.09
8.1.240.0090.00022.61
8.1.230.0090.00320.89
8.1.220.0000.00818.77
8.1.210.0040.00418.88
8.1.200.0030.00617.48
8.1.190.0000.00917.41
8.1.180.0000.00818.10
8.1.170.0080.00018.63
8.1.160.0000.00719.01
8.1.150.0000.00818.79
8.1.140.0040.00417.53
8.1.130.0050.00217.89
8.1.120.0080.00017.69
8.1.110.0050.00317.69
8.1.100.0040.00417.54
8.1.90.0050.00317.54
8.1.80.0040.00417.62
8.1.70.0030.00317.61
8.1.60.0000.00817.80
8.1.50.0000.00817.68
8.1.40.0030.00617.71
8.1.30.0040.00417.77
8.1.20.0050.00317.82
8.1.10.0030.00617.75
8.1.00.0090.00317.71
8.0.300.0000.00820.15
8.0.290.0060.00317.16
8.0.280.0000.00718.56
8.0.270.0030.00717.30
8.0.260.0070.00017.10
8.0.250.0000.00817.25
8.0.240.0030.00717.27
8.0.230.0000.00717.32
8.0.220.0000.00717.16
8.0.210.0000.00717.05
8.0.200.0030.00317.27
8.0.190.0000.00717.25
8.0.180.0110.00017.13
8.0.170.0050.00217.19
8.0.160.0040.00417.20
8.0.150.0040.00417.17
8.0.140.0000.00717.18
8.0.130.0060.00013.66
8.0.120.0000.00817.06
8.0.110.0040.00417.10
8.0.100.0000.00817.23
8.0.90.0000.00717.07
8.0.80.0110.00617.23
8.0.70.0000.00816.98
8.0.60.0030.00517.01
8.0.50.0040.00417.18
8.0.30.0090.01117.32
8.0.20.0150.00417.52
8.0.10.0080.00017.30
8.0.00.0080.01117.12
7.4.330.0060.00015.04
7.4.320.0030.00316.84
7.4.300.0000.00616.85
7.4.290.0000.00816.82
7.4.280.0070.00016.82
7.4.270.0000.00716.76
7.4.260.0030.00313.50
7.4.250.0060.00316.73
7.4.240.0070.00016.71
7.4.230.0000.00816.61
7.4.220.0080.01116.75
7.4.210.0110.00716.94
7.4.200.0040.00416.93
7.4.190.0040.00416.70
7.4.160.0110.01116.86
7.4.150.0220.00917.40
7.4.140.0130.00717.86
7.4.130.0110.00716.85
7.4.120.0120.00816.77
7.4.110.0000.01816.70
7.4.100.0080.01216.98
7.4.90.0070.01416.85
7.4.80.0090.01619.39
7.4.70.0060.01216.68
7.4.60.0150.00916.82
7.4.50.0060.00316.74
7.4.40.0110.00322.77
7.4.30.0100.00916.69
7.4.00.0070.01215.23
7.3.330.0030.00313.30
7.3.320.0060.00013.52
7.3.310.0040.00416.60
7.3.300.0000.00716.56
7.3.290.0070.00716.67
7.3.280.0060.01216.64
7.3.270.0100.01017.40
7.3.260.0110.01218.24
7.3.250.0090.01016.73
7.3.240.0070.01016.80
7.3.230.0030.01516.59
7.3.210.0100.01016.50
7.3.200.0070.01019.39
7.3.190.0180.00616.40
7.3.180.0080.00816.80
7.3.170.0090.01216.51
7.3.160.0170.00016.69
7.3.120.0080.00815.20
7.3.110.0060.01214.95
7.3.100.0030.01215.26
7.3.90.0070.00715.06
7.3.80.0030.00714.80
7.3.70.0070.00715.12
7.3.60.0070.01115.18
7.3.50.0030.00614.98
7.3.40.0060.00914.89
7.3.30.0030.01015.16
7.3.20.0070.01016.79
7.3.10.0080.01016.90
7.3.00.0070.00716.85
7.2.330.0090.00916.93
7.2.320.0140.00616.79
7.2.310.0160.00916.95
7.2.300.0090.00916.89
7.2.290.0020.01616.84
7.2.250.0080.01115.25
7.2.240.0090.00915.41
7.2.230.0070.01115.26
7.2.220.0060.00915.32
7.2.210.0090.00615.36
7.2.200.0120.00015.05
7.2.190.0100.00615.46
7.2.180.0040.00715.02
7.2.170.0130.00014.91
7.2.130.0030.01317.31
7.2.120.0060.00617.23
7.2.110.0090.00616.91
7.2.100.0060.00917.20
7.2.90.0040.00817.16
7.2.80.0000.01617.29
7.2.70.0060.00917.35
7.2.60.0020.01217.22
7.2.50.0060.00916.87
7.2.40.0000.01517.25
7.2.30.0080.00817.36
7.2.20.0130.00317.16
7.2.10.0040.00817.23
7.2.00.0130.00518.35
7.1.330.0110.00316.15
7.1.320.0090.00616.23
7.1.310.0030.01315.92
7.1.300.0070.01115.98
7.1.290.0080.00016.12
7.1.280.0060.00916.10
7.1.270.0070.00316.11
7.1.260.0030.00615.94
7.1.250.0030.01415.97
7.1.200.0030.01016.07
7.1.100.0030.00918.49
7.1.70.0000.00817.53
7.1.60.0070.00317.55
7.1.50.0070.00316.88
7.1.40.0060.01216.89
7.1.30.0040.01116.92
7.1.20.0040.00717.12
7.1.10.0030.00616.88
7.1.00.0030.00516.95
7.0.200.0000.00716.83
7.0.190.0050.00217.07
7.0.180.0030.00716.70
7.0.170.0060.00316.70
7.0.160.0030.00916.70
7.0.150.0090.00616.70
7.0.140.0000.01116.81
7.0.130.0000.01016.70
7.0.120.0040.00716.82
7.0.110.0030.00616.70
7.0.100.0050.00516.70
7.0.90.0090.00616.70
7.0.80.0060.00616.70
7.0.70.0000.00916.70
7.0.60.0000.01116.70
7.0.50.0060.00316.70
7.0.40.0040.00416.70
7.0.30.0040.00816.70
7.0.20.0000.01016.70
7.0.10.0080.00416.70
7.0.00.0000.01016.70
5.6.300.0060.04820.58
5.6.290.0060.04220.95
5.6.280.0000.05120.82
5.6.270.0070.04321.00
5.6.260.0000.05321.00
5.6.250.0070.03920.90
5.6.240.0100.03821.03
5.6.230.0170.04420.95
5.6.220.0070.04120.91
5.6.210.0030.04520.63
5.6.200.0000.05121.04
5.6.190.0000.05821.04
5.6.180.0060.04521.05
5.6.170.0200.04620.96
5.6.160.0060.04321.05
5.6.150.0100.03820.75
5.6.140.0100.04120.86
5.6.130.0090.04420.99
5.6.120.0030.04220.83
5.6.110.0030.05220.98
5.6.100.0030.06320.96
5.6.90.0100.04520.92
5.6.80.0030.05220.21
5.6.70.0070.03920.38
5.6.60.0070.05120.21
5.6.50.0040.04320.35
5.6.40.0030.04020.32
5.6.30.0150.03520.39
5.6.20.0000.05420.19
5.6.10.0040.04320.10
5.6.00.0070.03720.27
5.5.380.0070.04217.44
5.5.370.0070.04317.57
5.5.360.0070.04317.45
5.5.350.0000.04417.50
5.5.340.0000.04618.03
5.5.330.0000.05317.94
5.5.320.0030.04118.03
5.5.310.0030.05017.96
5.5.300.0270.05117.71
5.5.290.0000.04818.06
5.5.280.0000.04517.70
5.5.270.0030.04018.00
5.5.260.0030.04317.85
5.5.250.0060.04517.88
5.5.240.0100.03317.50
5.5.230.0000.04517.41
5.5.220.0100.05417.43
5.5.210.0070.03317.21
5.5.200.0060.03517.06
5.5.190.0030.04217.09
5.5.180.0060.03517.21
5.5.160.0030.04017.21
5.5.150.0000.07417.29
5.5.140.0030.03717.28
5.5.130.0000.04717.37
5.5.120.0030.03817.37
5.5.110.0090.03217.41
5.5.100.0070.03717.28
5.5.90.0030.04217.36
5.5.80.0030.06717.11
5.5.70.0000.04016.94
5.5.60.0040.04917.10
5.5.50.0000.04317.27
5.5.40.0070.03717.36
5.5.30.0000.04117.27
5.5.20.0060.05117.18
5.5.10.0100.04917.26
5.5.00.0060.07116.95
5.4.450.0030.04819.38
5.4.440.0000.04519.16
5.4.430.0030.03819.39
5.4.420.0000.04319.30
5.4.410.0030.04219.20
5.4.400.0000.04019.14
5.4.390.0070.03318.98
5.4.380.0070.03518.98
5.4.370.0040.03919.09
5.4.360.0070.04718.86
5.4.350.0070.04018.98
5.4.340.0030.04419.02
5.4.320.0030.05019.17
5.4.310.0000.04819.12
5.4.300.0000.05918.97
5.4.290.0030.03818.91
5.4.280.0000.04219.16
5.4.270.0070.03319.01
5.4.260.0000.04418.98
5.4.250.0030.04019.16
5.4.240.0070.05018.88
5.4.230.0030.03719.09
5.4.220.0000.05019.07
5.4.210.0000.04118.97
5.4.200.0000.04219.05
5.4.190.0070.03319.13
5.4.180.0100.04319.16
5.4.170.0070.05319.08
5.4.160.0030.04119.05
5.4.150.0070.04019.05
5.4.140.0040.03916.70
5.4.130.0000.04716.70
5.4.120.0000.03916.72
5.4.110.0030.03716.70
5.4.100.0030.03716.70
5.4.90.0060.03116.70
5.4.80.0000.04116.70
5.4.70.0000.04516.70
5.4.60.0030.04116.70
5.4.50.0030.03716.70
5.4.40.0100.03016.70
5.4.30.0030.03616.71
5.4.20.0000.04116.70
5.4.10.0090.03816.70
5.4.00.0000.03916.70
5.3.290.0030.03816.70
5.3.280.0030.03716.70
5.3.270.0100.03516.70
5.3.260.0070.03616.70
5.3.250.0000.04716.70
5.3.240.0040.03516.70
5.3.230.0000.05716.70
5.3.220.0030.03616.70
5.3.210.0030.04516.70
5.3.200.0030.03516.70
5.3.190.0030.06116.70
5.3.180.0070.03616.70
5.3.170.0030.03816.70
5.3.160.0100.04516.70
5.3.150.0000.04216.70
5.3.140.0240.03716.70
5.3.130.0000.04216.70
5.3.120.0030.04716.70
5.3.110.0060.03816.70
5.3.100.0000.04116.70
5.3.90.0030.03716.70
5.3.80.0000.04016.70
5.3.70.0000.04016.70
5.3.60.0030.03816.70
5.3.50.0030.03916.70
5.3.40.0070.06016.70
5.3.30.0030.03416.70
5.3.20.0000.03716.70
5.3.10.0030.03116.70
5.3.00.0030.03716.70
5.2.170.0030.02816.70
5.2.160.0070.05716.70
5.2.150.0000.03416.70
5.2.140.0030.02816.70
5.2.130.0000.02916.70
5.2.120.0030.03816.70
5.2.110.0000.03016.70
5.2.100.0000.03216.70
5.2.90.0030.03016.70
5.2.80.0070.04316.70
5.2.70.0030.03616.70
5.2.60.0030.06616.70
5.2.50.0070.04316.70
5.2.40.0000.05416.70
5.2.30.0100.02616.70
5.2.20.0070.05416.70
5.2.10.0070.03816.70
5.2.00.0030.03616.70
5.1.60.0040.02516.70
5.1.50.0030.02316.70
5.1.40.0030.02516.70
5.1.30.0030.02816.70
5.1.20.0000.03016.70
5.1.10.0000.02716.70
5.1.00.0000.02716.70
5.0.50.0000.02216.70
5.0.40.0070.04016.70
5.0.30.0060.02616.70
5.0.20.0070.01716.70
5.0.10.0030.02316.70
5.0.00.0030.03016.70
4.4.90.0030.02116.70
4.4.80.0000.01716.70
4.4.70.0070.01116.70
4.4.60.0070.02016.70
4.4.50.0000.03716.70
4.4.40.0000.04416.70
4.4.30.0000.02016.70
4.4.20.0000.02016.70
4.4.10.0000.02516.70
4.4.00.0000.03816.70
4.3.110.0000.01916.70
4.3.100.0070.01316.70
4.3.90.0040.01416.70
4.3.80.0030.02216.70
4.3.70.0000.01816.70
4.3.60.0070.01616.70
4.3.50.0000.01816.70
4.3.40.0030.02216.70
4.3.30.0100.01616.70
4.3.20.0000.02016.70
4.3.10.0000.02016.70
4.3.00.0030.01916.70

preferences:
44.58 ms | 401 KiB | 5 Q