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)
8.3.60.0180.00016.88
8.3.50.0080.01022.18
8.3.40.0080.00818.82
8.3.30.0070.00719.22
8.3.20.0030.00520.16
8.3.10.0070.00023.57
8.3.00.0080.00022.27
8.2.180.0080.00816.87
8.2.170.0160.00322.96
8.2.160.0090.00619.27
8.2.150.0000.00824.18
8.2.140.0000.00824.66
8.2.130.0080.00026.16
8.2.120.0070.00022.21
8.2.110.0060.00322.11
8.2.100.0120.00318.16
8.2.90.0030.00519.08
8.2.80.0050.00318.02
8.2.70.0030.00517.75
8.2.60.0050.00317.93
8.2.50.0030.00618.07
8.2.40.0050.00318.16
8.2.30.0000.00818.16
8.2.20.0000.00717.95
8.2.10.0000.00818.11
8.2.00.0040.00418.03
8.1.280.0070.01125.92
8.1.270.0050.00324.04
8.1.260.0050.00326.35
8.1.250.0070.00028.09
8.1.240.0060.00324.02
8.1.230.0080.00418.97
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0100.00017.72
8.1.190.0050.00317.53
8.1.180.0040.00418.10
8.1.170.0000.00918.95
8.1.160.0040.00422.07
8.1.150.0090.00018.73
8.1.140.0000.00817.51
8.1.130.0030.00317.86
8.1.120.0000.00717.70
8.1.110.0040.00417.65
8.1.100.0040.00417.61
8.1.90.0070.00017.70
8.1.80.0030.00517.66
8.1.70.0040.00417.61
8.1.60.0050.00517.80
8.1.50.0000.00817.73
8.1.40.0040.00417.69
8.1.30.0030.00517.73
8.1.20.0030.00517.75
8.1.10.0040.00417.74
8.1.00.0040.00417.59
8.0.300.0040.00418.77
8.0.290.0040.00417.30
8.0.280.0050.00218.41
8.0.270.0040.00817.32
8.0.260.0000.00717.11
8.0.250.0000.00717.17
8.0.240.0000.00817.14
8.0.230.0030.00317.24
8.0.220.0030.00317.19
8.0.210.0040.00417.19
8.0.200.0000.00617.24
8.0.190.0060.00317.26
8.0.180.0030.00517.21
8.0.170.0080.00017.28
8.0.160.0000.00717.28
8.0.150.0080.00017.17
8.0.140.0000.00817.05
8.0.130.0030.00313.63
8.0.120.0000.00717.05
8.0.110.0000.00717.09
8.0.100.0070.00017.26
8.0.90.0080.00017.04
8.0.80.0090.00617.23
8.0.70.0050.00317.14
8.0.60.0050.00317.10
8.0.50.0050.00317.23
8.0.30.0130.01217.33
8.0.20.0100.01017.40
8.0.10.0020.00517.20
8.0.00.0130.00716.96
7.4.330.0020.00215.18
7.4.320.0000.00616.88
7.4.300.0000.00716.83
7.4.290.0040.00416.68
7.4.280.0040.00416.66
7.4.270.0000.00716.85
7.4.260.0040.00416.75
7.4.250.0030.00616.78
7.4.240.0020.00516.69
7.4.230.0000.00816.64
7.4.220.0060.01216.73
7.4.210.0050.01016.88
7.4.200.0000.00716.65
7.4.190.0000.00816.94
7.4.160.0060.01116.72
7.4.150.0090.01017.40
7.4.140.0090.01217.86
7.4.130.0160.00516.76
7.4.120.0190.00716.79
7.4.110.0110.01116.72
7.4.100.0090.01116.71
7.4.90.0110.00816.63
7.4.80.0090.01118.06
7.4.70.0080.01016.68
7.4.60.0090.00916.77
7.4.50.0060.00616.68
7.4.40.0110.00819.57
7.4.30.0080.01116.55
7.4.20.0030.01916.55
7.4.10.0070.01215.91
7.4.00.0110.00715.41
7.3.330.0000.00613.29
7.3.320.0000.00513.49
7.3.310.0050.00216.43
7.3.300.0040.00416.61
7.3.290.0110.00416.64
7.3.280.0120.00616.61
7.3.270.0120.00617.40
7.3.260.0110.00616.53
7.3.250.0110.01016.78
7.3.240.0140.00316.63
7.3.230.0070.01516.58
7.3.220.0060.01316.71
7.3.210.0100.00816.61
7.3.200.0080.01017.97
7.3.190.0130.00816.64
7.3.180.0070.01216.64
7.3.170.0100.00916.68
7.3.160.0140.00416.79
7.3.150.0090.00916.44
7.3.140.0140.01116.52
7.3.130.0110.00716.07
7.3.120.0060.01315.38
7.3.110.0140.00515.49
7.3.100.0060.01415.62
7.3.90.0090.00815.73
7.3.80.0050.01115.68
7.3.70.0050.01015.54
7.3.60.0090.01015.52
7.3.50.0040.01015.65
7.3.40.0050.01215.56
7.3.30.0030.01215.61
7.3.20.0100.00716.78
7.3.10.0120.00616.70
7.3.00.0120.00316.72
7.2.340.0110.00916.88
7.2.330.0090.01216.79
7.2.320.0100.01116.80
7.2.310.0110.00916.91
7.2.300.0090.01016.81
7.2.290.0110.01016.86
7.2.280.0040.01416.78
7.2.270.0150.00816.89
7.2.260.0080.01015.98
7.2.250.0080.01215.78
7.2.240.0110.01015.78
7.2.230.0060.01115.78
7.2.220.0100.00715.70
7.2.210.0060.00815.75
7.2.200.0060.00915.73
7.2.190.0060.01015.76
7.2.180.0060.01115.80
7.2.170.0060.01115.78
7.2.160.0060.01115.96
7.2.150.0070.01116.94
7.2.140.0090.00716.91
7.2.130.0140.00816.96
7.2.120.0050.01016.99
7.2.110.0100.01017.13
7.2.100.0040.01116.80
7.2.90.0080.01017.10
7.2.80.0100.00516.87
7.2.70.0100.00816.98
7.2.60.0060.01317.01
7.2.50.0120.00916.92
7.2.40.0120.00817.09
7.2.30.0090.00717.00
7.2.20.0100.01016.99
7.2.10.0070.01017.02
7.2.00.0090.00916.96
7.1.330.0130.00815.89
7.1.320.0130.00215.79
7.1.310.0070.01115.84
7.1.300.0080.01315.90
7.1.290.0090.00815.89
7.1.280.0100.00615.89
7.1.270.0120.00615.82
7.1.260.0090.00715.91
7.1.250.0090.01015.74
7.1.240.0150.00615.66
7.1.230.0090.01015.76
7.1.220.0140.00315.71
7.1.210.0100.01015.78
7.1.200.0110.00615.68
7.1.190.0130.01015.58
7.1.180.0110.01015.82
7.1.170.0160.00615.65
7.1.160.0070.01415.63
7.1.150.0120.00915.74
7.1.140.0120.00915.65
7.1.130.0110.01015.69
7.1.120.0110.01015.64
7.1.110.0130.00915.68
7.1.100.0070.01015.75
7.1.90.0100.00915.67
7.1.80.0120.00515.79
7.1.70.0110.00416.40
7.1.60.0160.00916.97
7.1.50.0050.01216.21
7.1.40.0180.00715.71
7.1.30.0150.00515.78
7.1.20.0130.00715.77
7.1.10.0160.00215.78
7.1.00.0080.03217.97
7.0.330.0120.01115.42
7.0.320.0150.00615.46
7.0.310.0150.00815.48
7.0.300.0140.01015.51
7.0.290.0140.00815.55
7.0.280.0160.00615.57
7.0.270.0170.00515.63
7.0.260.0130.00815.49
7.0.250.0100.01415.60
7.0.240.0260.00215.57
7.0.230.0130.00815.54
7.0.220.0110.01215.60
7.0.210.0140.00915.46
7.0.200.0120.00816.05
7.0.190.0120.00815.53
7.0.180.0150.00915.61
7.0.170.0140.00815.55
7.0.160.0150.00815.34
7.0.150.0170.01115.47
7.0.140.0160.02417.64
7.0.130.0180.01015.49
7.0.120.0110.01315.51
7.0.110.0160.00615.62
7.0.100.0130.00915.57
7.0.90.0120.00715.40
7.0.80.0130.00615.47
7.0.70.0160.00415.60
7.0.60.0210.03117.03
7.0.50.0110.03116.35
7.0.40.0130.03016.44
7.0.30.0200.02616.42
7.0.20.0170.03216.52
7.0.10.0110.03116.34
7.0.00.0100.02016.38
5.6.400.0110.00415.25
5.6.390.0200.00315.06
5.6.380.0160.01115.37
5.6.370.0140.01115.51
5.6.360.0120.01015.36
5.6.350.0120.01115.32
5.6.340.0120.01215.03
5.6.330.0150.00815.27
5.6.320.0120.00815.21
5.6.310.0160.01115.54
5.6.300.0130.01015.29
5.6.290.0160.00815.13
5.6.280.0120.03017.18
5.6.270.0070.01415.31
5.6.260.0080.01415.23
5.6.250.0150.00715.03
5.6.240.0160.00515.28
5.6.230.0140.00915.30
5.6.220.0150.01015.36
5.6.210.0100.02417.03
5.6.200.0130.03016.30
5.6.190.0140.03316.97
5.6.180.0210.03317.02
5.6.170.0180.02716.90
5.6.160.0090.02016.94
5.6.150.0090.03616.15
5.6.140.0130.02916.24
5.6.130.0140.03416.29
5.6.120.0080.03717.18
5.6.110.0130.03217.13
5.6.100.0150.01917.18
5.6.90.0130.03717.21
5.6.80.0140.01616.90
5.6.70.0150.00715.24
5.6.60.0160.00815.24
5.6.50.0100.01315.37
5.6.40.0170.00415.10
5.6.30.0130.00915.21
5.6.20.0140.01315.32
5.6.10.0160.01015.15
5.6.00.0110.01215.03
5.5.380.0200.00915.40
5.5.370.0120.01415.13
5.5.360.0140.01115.34
5.5.350.0160.03116.96
5.5.340.0140.02216.34
5.5.330.0150.02116.88
5.5.320.0200.03616.76
5.5.310.0150.02116.88
5.5.300.0130.02416.10
5.5.290.0160.03316.25
5.5.280.0140.03117.11
5.5.270.0140.03017.05
5.5.260.0160.03217.22
5.5.250.0150.03517.04
5.5.240.0100.02716.78
5.5.230.0270.00315.20
5.5.220.0200.01114.97
5.5.210.0220.01015.21
5.5.200.0220.00515.30
5.5.190.0190.00714.98
5.5.180.0180.01315.16
5.5.170.0220.00615.13
5.5.160.0220.00715.20
5.5.150.0190.01015.23
5.5.140.0190.00715.30
5.5.130.0170.01015.27
5.5.120.0110.01515.20
5.5.110.0140.01415.21
5.5.100.0160.01115.06
5.5.90.0170.01215.28
5.5.80.0150.01315.25
5.5.70.0170.01115.02
5.5.60.0150.01315.28
5.5.50.0200.00815.19
5.5.40.0140.01315.13
5.5.30.0210.00815.16
5.5.20.0200.01015.14
5.5.10.0160.01315.18
5.5.00.0150.01315.17
5.4.450.0310.02514.52
5.4.440.0140.02414.56
5.4.430.0110.02714.44
5.4.420.0150.02114.38
5.4.410.0100.02514.25
5.4.400.0130.02314.16
5.4.390.0140.02214.19
5.4.380.0100.02414.23
5.4.370.0080.02614.11
5.4.360.0100.01814.09
5.4.350.0120.01511.92
5.4.340.0100.01811.93
5.4.330.0140.00811.98
5.4.320.0070.02112.13
5.4.310.0120.01612.17
5.4.300.0080.02012.19
5.4.290.0100.02212.14
5.4.280.0150.01912.12
5.4.270.0090.02112.08
5.4.260.0130.02112.09
5.4.250.0070.02512.21
5.4.240.0140.02112.12
5.4.230.0220.02512.02
5.4.220.0200.03612.11
5.4.210.0160.01912.04
5.4.200.0180.02112.03
5.4.190.0150.01912.02
5.4.180.0170.02211.99
5.4.170.0170.01912.03
5.4.160.0140.02012.02
5.4.150.0150.02312.07
5.4.140.0120.02211.98
5.4.130.0160.02112.01
5.4.120.0130.02211.94
5.4.110.0150.02011.98
5.4.100.0170.02011.88
5.4.90.0180.02311.89
5.4.80.0160.02011.98
5.4.70.0150.01811.92
5.4.60.0120.02211.92
5.4.50.0120.02011.93
5.4.40.0130.01911.88
5.4.30.0130.02111.94
5.4.20.0110.02311.87
5.4.10.0170.01511.96
5.4.00.0130.01911.76
5.3.290.0140.02012.36
5.3.280.0140.02612.28
5.3.270.0160.02012.36
5.3.260.0140.02212.31
5.3.250.0150.03012.35
5.3.240.0140.02112.29
5.3.230.0140.02112.31
5.3.220.0180.01912.27
5.3.210.0110.02412.26
5.3.200.0150.02212.27
5.3.190.0130.02212.33
5.3.180.0170.02112.38
5.3.170.0160.01912.36
5.3.160.0150.02012.38
5.3.150.0120.02312.38
5.3.140.0100.02512.35
5.3.130.0130.02312.27
5.3.120.0160.02012.31
5.3.110.0150.01712.29
5.3.100.0110.02412.16
5.3.90.0150.01612.09
5.3.80.0130.02112.15
5.3.70.0160.01912.07
5.3.60.0220.03412.05
5.3.50.0130.02012.06
5.3.40.0140.02012.07
5.3.30.0160.01812.08
5.3.20.0140.02211.90
5.3.10.0130.01811.89
5.3.00.0110.02311.84

preferences:
50.26 ms | 400 KiB | 5 Q