3v4l.org

run code in 300+ PHP versions simultaneously
<?php $examples = array( 'Valid ASCII' => "a", 'Valid 2 Octet Sequence' => "\xc3\xb1", 'Invalid 2 Octet Sequence' => "\xc3\x28", 'Invalid Sequence Identifier' => "\xa0\xa1", 'Valid 3 Octet Sequence' => "\xe2\x82\xa1", 'Invalid 3 Octet Sequence (in 2nd Octet)' => "\xe2\x28\xa1", 'Invalid 3 Octet Sequence (in 3rd Octet)' => "\xe2\x82\x28", 'Valid 4 Octet Sequence' => "\xf0\x90\x8c\xbc", 'Invalid 4 Octet Sequence (in 2nd Octet)' => "\xf0\x28\x8c\xbc", 'Invalid 4 Octet Sequence (in 3rd Octet)' => "\xf0\x90\x28\xbc", 'Invalid 4 Octet Sequence (in 4th Octet)' => "\xf0\x28\x8c\x28", 'Valid 5 Octet Sequence (but not Unicode!)' => "\xf8\xa1\xa1\xa1\xa1", 'Valid 6 Octet Sequence (but not Unicode!)' => "\xfc\xa1\xa1\xa1\xa1\xa1", ); foreach ($examples as $k => $v) { echo "{$k}\n"; echo var_dump((bool)preg_match("//u", $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)
8.3.70.0100.01016.63
8.3.60.0110.00418.43
8.3.50.0070.00922.11
8.3.40.0110.00418.83
8.3.30.0110.00418.84
8.3.20.0040.00418.86
8.3.10.0040.00420.93
8.3.00.0040.00421.86
8.2.180.0160.00325.92
8.2.170.0110.00419.02
8.2.160.0110.00422.96
8.2.150.0070.00024.18
8.2.140.0000.00824.66
8.2.130.0070.00026.16
8.2.120.0040.00420.88
8.2.110.0090.00020.47
8.2.100.0090.00317.84
8.2.90.0000.00918.84
8.2.80.0040.00417.97
8.2.70.0040.00417.75
8.2.60.0040.00417.80
8.2.50.0050.00518.07
8.2.40.0080.00018.34
8.2.30.0000.00719.52
8.2.20.0000.00817.88
8.2.10.0040.00417.97
8.2.00.0070.00318.03
8.1.280.0150.00025.92
8.1.270.0040.00423.99
8.1.260.0080.00026.35
8.1.250.0030.00528.09
8.1.240.0140.00020.52
8.1.230.0090.00320.92
8.1.220.0040.00418.77
8.1.210.0040.00418.96
8.1.200.0060.00317.48
8.1.190.0040.00417.51
8.1.180.0060.00318.10
8.1.170.0000.00818.83
8.1.160.0000.00718.97
8.1.150.0060.00618.80
8.1.140.0040.00417.57
8.1.130.0000.00717.72
8.1.120.0000.00817.61
8.1.110.0000.00817.55
8.1.100.0040.00417.58
8.1.90.0000.00717.57
8.1.80.0000.00817.59
8.1.70.0000.00817.59
8.1.60.0090.00017.63
8.1.50.0000.00817.66
8.1.40.0050.00317.59
8.1.30.0050.00317.77
8.1.20.0000.00817.75
8.1.10.0040.00417.67
8.1.00.0000.00717.50
8.0.300.0040.00419.81
8.0.290.0070.00017.16
8.0.280.0030.00318.47
8.0.270.0040.00416.95
8.0.260.0000.00618.35
8.0.250.0040.00417.17
8.0.240.0040.00717.18
8.0.230.0030.00317.14
8.0.220.0000.00817.03
8.0.210.0040.00417.08
8.0.200.0030.00317.14
8.0.190.0040.00417.16
8.0.180.0040.00417.15
8.0.170.0000.00817.15
8.0.160.0000.00717.00
8.0.150.0040.00417.08
8.0.140.0100.00017.05
8.0.130.0000.00513.46
8.0.120.0030.00516.91
8.0.110.0030.00617.05
8.0.100.0070.00016.98
8.0.90.0040.00417.04
8.0.80.0030.01317.00
8.0.70.0040.00417.11
8.0.60.0040.00417.23
8.0.50.0040.00417.10
8.0.30.0150.00317.43
8.0.20.0170.01017.40
8.0.10.0040.00417.28
8.0.00.0060.01116.89
7.4.330.0050.00016.91
7.4.320.0030.00316.72
7.4.300.0030.00316.63
7.4.290.0070.00016.80
7.4.280.0080.00016.75
7.4.270.0030.00316.73
7.4.260.0000.00513.48
7.4.250.0000.00816.78
7.4.240.0030.00316.68
7.4.230.0000.00816.84
7.4.220.0120.01516.74
7.4.210.0090.00616.83
7.4.200.0070.00016.61
7.4.190.0040.00416.78
7.4.160.0150.00816.86
7.4.150.0110.00717.40
7.4.140.0070.01317.86
7.4.130.0150.00316.85
7.4.120.0110.00616.63
7.4.110.0070.01016.53
7.4.100.0150.00716.88
7.4.90.0120.00616.61
7.4.80.0100.01019.39
7.4.70.0090.01316.63
7.4.60.0100.01316.54
7.4.50.0040.00416.82
7.4.40.0090.00922.77
7.4.30.0110.00816.86
7.4.10.0070.01114.98
7.4.00.0050.01115.04
7.3.330.0030.00313.40
7.3.320.0040.00413.20
7.3.310.0000.00716.32
7.3.300.0030.00316.48
7.3.290.0000.02016.53
7.3.280.0070.00816.53
7.3.270.0130.01517.40
7.3.260.0110.01218.24
7.3.250.0090.00916.66
7.3.240.0070.01016.82
7.3.230.0090.00916.73
7.3.210.0090.00916.67
7.3.200.0120.00919.39
7.3.190.0130.00716.67
7.3.180.0030.01316.63
7.3.170.0130.00816.41
7.3.160.0100.00716.71
7.3.130.0060.00914.96
7.3.120.0050.01414.83
7.3.110.0020.01415.22
7.3.100.0070.00614.72
7.3.90.0080.00415.29
7.3.80.0060.00414.95
7.3.70.0050.00514.96
7.3.60.0050.00915.07
7.3.50.0110.00015.10
7.3.40.0050.00814.93
7.3.30.0080.00614.91
7.3.20.0080.00516.89
7.3.10.0030.00917.01
7.3.00.0080.00316.78
7.2.330.0110.00716.66
7.2.320.0070.01016.94
7.2.310.0060.01316.79
7.2.300.0120.00616.69
7.2.290.0060.01716.78
7.2.260.0060.01314.97
7.2.250.0030.01715.29
7.2.240.0020.01315.06
7.2.230.0090.00515.21
7.2.220.0100.00315.23
7.2.210.0050.00415.11
7.2.200.0050.00714.92
7.2.190.0030.01015.20
7.2.180.0080.00815.16
7.2.170.0030.00715.21
7.2.160.0020.01215.12
7.2.150.0090.00616.95
7.2.140.0090.00316.95
7.2.130.0070.00717.02
7.2.120.0050.01017.05
7.2.110.0040.00717.06
7.2.100.0030.01117.13
7.2.90.0030.01117.05
7.2.80.0070.00816.93
7.2.70.0020.01217.07
7.2.60.0050.00816.90
7.2.50.0080.00717.16
7.2.40.0030.01017.09
7.2.30.0070.00317.12
7.2.20.0050.00716.96
7.2.10.0180.01017.15
7.2.00.0110.01017.86
7.1.330.0060.00815.81
7.1.320.0070.00715.94
7.1.310.0050.00916.08
7.1.300.0020.00915.91
7.1.290.0040.01016.06
7.1.280.0080.00315.96
7.1.270.0070.00616.06
7.1.260.0070.00716.10
7.1.250.0080.00516.08
7.1.240.0040.01216.05
7.1.230.0030.01016.11
7.1.220.0030.00716.06
7.1.210.0040.01115.99
7.1.200.0070.00715.90
7.1.190.0030.01015.95
7.1.180.0030.01215.98
7.1.170.0030.00615.89
7.1.160.0000.01016.02
7.1.150.0070.00715.89
7.1.140.0090.00915.85
7.1.130.0000.01516.14
7.1.120.0190.00816.49
7.1.110.0210.00516.01
7.1.100.0110.00916.90
7.1.90.0290.01016.19
7.1.80.0180.00716.44
7.1.70.0110.01116.36
7.1.60.0200.01022.93
7.1.50.0220.00722.17
7.1.40.0170.00924.43
7.1.30.0270.00324.25
7.1.20.0200.00724.56
7.1.10.0170.00715.45
7.1.00.0050.02017.94
7.0.330.0040.01115.45
7.0.320.0070.00715.38
7.0.310.0030.01015.76
7.0.300.0060.00615.25
7.0.290.0030.00915.41
7.0.280.0040.00815.62
7.0.270.0050.00515.23
7.0.260.0190.00716.01
7.0.250.0180.00815.90
7.0.240.0200.00815.76
7.0.230.0220.01015.86
7.0.220.0180.00715.87
7.0.210.0190.00915.42
7.0.200.0110.00915.96
7.0.190.0210.00615.36
7.0.180.0150.00814.87
7.0.170.0160.00814.91
7.0.160.0090.01115.16
7.0.150.0110.00715.00
7.0.140.0090.03117.57
7.0.130.0120.00715.24
7.0.120.0170.00515.22
7.0.110.0120.00515.19
7.0.100.0090.03416.73
7.0.90.0080.01716.74
7.0.80.0110.01616.70
7.0.70.0080.01816.75
7.0.60.0110.01616.76
7.0.50.0920.02316.93
7.0.40.0130.02415.98
7.0.30.0080.01916.07
7.0.20.0100.02916.06
7.0.10.0080.01716.22
7.0.00.0110.02516.25
5.6.400.0040.01214.07
5.6.390.0060.00614.43
5.6.380.0030.01014.41
5.6.370.0070.00314.72
5.6.360.0060.00614.56
5.6.350.0040.00814.75
5.6.340.0070.00714.30
5.6.330.0030.00913.91
5.6.320.0100.00714.46
5.6.310.0060.00314.84
5.6.300.0100.03017.66
5.6.290.0110.02917.69
5.6.280.0060.04818.78
5.6.270.0080.03017.54
5.6.260.0100.02917.50
5.6.250.0040.03618.66
5.6.240.0070.03618.61
5.6.230.0070.03618.64
5.6.220.0090.03218.72
5.6.210.0050.03418.56
5.6.200.0070.04018.74
5.6.190.0090.03618.72
5.6.180.0070.03618.79
5.6.170.0060.03618.85
5.6.160.0030.03618.88
5.6.150.0100.03518.76
5.6.140.0100.03918.78
5.6.130.0060.03218.67
5.6.120.0100.03118.67
5.6.110.0080.03618.73
5.6.100.0040.03618.64
5.6.90.0110.03218.65
5.6.80.0030.03618.27
5.6.70.0110.02918.28
5.6.60.0090.02918.38
5.6.50.0120.02718.29
5.6.40.0090.03018.34
5.6.30.0090.03118.25
5.6.20.0080.03618.36
5.6.10.0070.03418.38
5.6.00.0070.03518.34
5.5.380.0070.04918.88
5.5.370.0070.04819.00
5.5.360.0030.05318.88
5.5.350.0150.04018.90
5.5.340.0120.04319.37
5.5.330.0120.05519.39
5.5.320.0080.04319.24
5.5.310.0120.06219.41
5.5.300.0080.04519.32
5.5.290.0080.04919.38
5.5.280.0080.04819.41
5.5.270.0070.04919.35
5.5.260.0060.05019.24
5.5.250.0120.04319.17
5.5.240.0030.04718.82
5.5.230.0050.04918.74
5.5.220.0070.05318.84
5.5.210.0100.04418.79
5.5.200.0050.04518.70
5.5.190.0070.04418.58
5.5.180.0100.04418.80
5.5.160.0080.04018.81
5.5.150.0120.04218.66
5.5.140.0160.05218.73
5.5.130.0170.04918.78
5.5.120.0100.05118.62
5.5.110.0060.06818.65
5.5.100.0060.05018.54
5.5.90.0160.05718.63
5.5.80.0130.05818.64
5.5.70.0100.06618.56
5.5.60.0050.04518.53
5.5.50.0070.06818.51
5.5.40.0080.04118.63
5.5.30.0100.06218.61
5.5.20.0070.05518.66
5.5.10.0150.06518.65
5.5.00.0100.07618.48
5.4.450.0070.05419.33
5.4.440.0070.04819.33
5.4.430.0070.04319.31
5.4.420.0050.04919.29
5.4.410.0080.04419.21
5.4.400.0130.04019.04
5.4.390.0070.05018.96
5.4.380.0100.04718.97
5.4.370.0070.04118.93
5.4.360.0120.04219.01
5.4.350.0080.04219.09
5.4.340.0030.04518.99
5.4.320.0070.04119.08
5.4.310.0140.04119.01
5.4.300.0070.06318.96
5.4.290.0110.06119.06
5.4.280.0050.06918.96
5.4.270.0110.06518.98
5.4.260.0100.05918.98
5.4.250.0100.06218.96
5.4.240.0150.05519.04
5.4.230.0050.05218.84
5.4.220.0120.04918.98
5.4.210.0100.04119.04
5.4.200.0070.06718.82
5.4.190.0070.05219.13
5.4.180.0100.04119.00
5.4.170.0050.05919.01
5.4.160.0090.04718.98
5.4.150.0100.05318.90
5.4.140.0150.04916.42
5.4.130.0070.06316.49
5.4.120.0050.05916.29
5.4.110.0140.05916.42
5.4.100.0100.05416.42
5.4.90.0050.07116.42
5.4.80.0120.05216.39
5.4.70.0110.03916.33
5.4.60.0130.04616.48
5.4.50.0060.06116.37
5.4.40.0050.06216.55
5.4.30.0120.05116.41
5.4.20.0110.04216.42
5.4.10.0060.06116.30
5.4.00.0190.03915.81
5.3.290.0080.04314.73
5.3.280.0070.04714.62
5.3.270.0100.06614.56
5.3.260.0080.07014.59
5.3.250.0060.05914.51
5.3.240.0050.06614.59
5.3.230.0110.03914.54
5.3.220.0090.06514.53
5.3.210.0080.06414.55
5.3.200.0080.04314.46
5.3.190.0080.06314.54
5.3.180.0090.04314.57
5.3.170.0080.06114.58
5.3.160.0060.04214.51
5.3.150.0090.06114.65
5.3.140.0100.05814.54
5.3.130.0120.05814.60
5.3.120.0020.05314.49
5.3.110.0070.06614.52
5.3.100.0080.04314.05
5.3.90.0080.05514.09
5.3.80.0100.05414.00
5.3.70.0100.04914.01
5.3.60.0120.03813.97
5.3.50.0100.05513.98
5.3.40.0170.04713.97
5.3.30.0100.04213.92
5.3.20.0090.03913.68
5.3.10.0080.05813.66
5.3.00.0100.05613.66
5.2.170.0050.03811.45
5.2.160.0030.05111.31
5.2.150.0020.04011.25
5.2.140.0070.05311.33
5.2.130.0030.05011.39
5.2.120.0070.04411.35
5.2.110.0110.03911.37
5.2.100.0040.03911.43
5.2.90.0050.04411.29
5.2.80.0070.05211.42
5.2.70.0020.04411.39
5.2.60.0100.04511.28
5.2.50.0100.04211.39
5.2.40.0020.03811.33
5.2.30.0120.04511.22
5.2.20.0070.04411.35
5.2.10.0030.05211.26
5.2.00.0060.04411.20
5.1.60.0050.02710.80
5.1.50.0050.04710.71
5.1.40.0030.03810.89
5.1.30.0050.04610.93
5.1.20.0100.04311.08
5.1.10.0070.04010.88
5.1.00.0070.03010.91
5.0.50.0020.03310.38
5.0.40.0060.02110.38
5.0.30.0020.05010.38
5.0.20.0020.02410.38
5.0.10.0030.02310.38
5.0.00.0020.05410.38
4.4.90.0030.01910.38
4.4.80.0020.02310.38
4.4.70.0030.02010.38
4.4.60.0040.02310.38
4.4.50.0040.01710.38
4.4.40.0000.03210.38
4.4.30.0020.02410.38
4.4.20.0020.02110.38
4.4.10.0000.02110.38
4.4.00.0050.04310.38
4.3.110.0050.02610.38
4.3.100.0080.01510.38
4.3.90.0070.02210.38
4.3.80.0000.04110.38
4.3.70.0020.02810.38
4.3.60.0040.02510.38
4.3.50.0030.02810.38
4.3.40.0030.02710.38
4.3.30.0020.02810.38
4.3.20.0040.01610.38
4.3.10.0020.01910.38
4.3.00.0020.02010.38

preferences:
58.96 ms | 401 KiB | 5 Q