3v4l.org

run code in 300+ PHP versions simultaneously
<?php $examples = array( 'Valid 2 Octet Sequence' => "\x80" ); foreach ($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)
8.3.60.0070.01118.56
8.3.50.0130.00622.17
8.3.40.0120.00318.79
8.3.30.0070.00719.19
8.3.20.0000.00820.16
8.3.10.0080.00023.48
8.3.00.0030.00519.18
8.2.180.0120.00616.75
8.2.170.0000.01422.96
8.2.160.0100.00322.21
8.2.150.0050.00324.18
8.2.140.0090.00024.66
8.2.130.0080.00026.16
8.2.120.0070.00021.05
8.2.110.0160.00619.30
8.2.100.0060.00617.84
8.2.90.0030.00617.99
8.2.80.0030.00518.89
8.2.70.0080.00018.05
8.2.60.0040.00418.22
8.2.50.0040.00418.10
8.2.40.0030.00721.32
8.2.30.0000.00819.20
8.2.20.0040.00417.90
8.2.10.0040.00418.15
8.2.00.0040.00417.83
8.1.280.0120.00625.92
8.1.270.0040.00418.82
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00023.92
8.1.230.0000.01120.88
8.1.220.0000.00817.74
8.1.210.0030.00518.77
8.1.200.0090.00017.48
8.1.190.0030.00717.35
8.1.180.0060.00318.94
8.1.170.0000.00818.65
8.1.160.0040.00419.15
8.1.150.0000.00718.91
8.1.140.0030.00517.70
8.1.130.0030.00317.85
8.1.120.0030.00917.51
8.1.110.0040.00417.63
8.1.100.0000.00717.49
8.1.90.0040.00417.51
8.1.80.0070.00417.53
8.1.70.0030.00317.62
8.1.60.0040.00417.73
8.1.50.0000.00817.67
8.1.40.0030.00617.74
8.1.30.0050.00317.80
8.1.20.0000.00717.70
8.1.10.0030.00617.68
8.1.00.0040.00417.61
8.0.300.0000.00918.77
8.0.290.0040.00416.88
8.0.280.0000.00718.43
8.0.270.0070.00017.16
8.0.260.0030.00317.29
8.0.250.0030.00317.13
8.0.240.0030.00317.07
8.0.230.0030.00317.10
8.0.220.0030.00316.98
8.0.210.0030.00317.00
8.0.200.0040.00417.15
8.0.190.0000.00817.05
8.0.180.0070.00017.03
8.0.170.0000.00717.01
8.0.160.0040.00417.07
8.0.150.0000.00917.16
8.0.140.0050.00217.01
8.0.130.0000.00613.46
8.0.120.0030.00617.08
8.0.110.0000.00816.97
8.0.100.0000.00717.05
8.0.90.0040.00417.11
8.0.80.0060.01516.98
8.0.70.0000.00716.99
8.0.60.0040.00417.09
8.0.50.0040.00417.05
8.0.30.0120.00817.25
8.0.20.0130.00517.40
8.0.10.0040.00417.05
8.0.00.0120.01117.03
7.4.330.0000.00515.16
7.4.320.0050.00316.64
7.4.300.0000.00616.72
7.4.290.0070.00016.70
7.4.280.0000.00716.68
7.4.270.0040.00416.64
7.4.260.0040.00416.69
7.4.250.0060.00316.78
7.4.240.0070.00016.73
7.4.230.0000.00716.60
7.4.220.0090.00916.59
7.4.210.0070.01016.80
7.4.200.0030.00316.83
7.4.160.0060.00916.77
7.4.150.0090.00917.40
7.4.140.0130.00617.86
7.4.130.0080.00916.76
7.4.120.0050.01216.75
7.4.110.0120.01216.61
7.4.100.0110.00616.68
7.4.90.0100.00716.69
7.4.80.0090.00919.39
7.4.70.0100.00716.58
7.4.60.0110.01116.71
7.4.50.0030.00516.48
7.4.40.0080.00816.71
7.4.30.0140.00916.73
7.4.00.0050.01215.09
7.3.330.0020.00213.23
7.3.320.0000.00613.40
7.3.310.0020.00516.50
7.3.300.0030.00316.41
7.3.290.0070.00816.54
7.3.280.0100.00916.52
7.3.270.0040.01317.40
7.3.260.0000.01716.71
7.3.250.0120.00716.59
7.3.240.0080.00816.50
7.3.230.0120.00616.85
7.3.210.0070.01016.50
7.3.200.0070.01119.39
7.3.190.0160.00016.35
7.3.180.0160.00016.38
7.3.170.0130.00616.51
7.3.160.0000.01716.58
7.3.120.0120.00815.33
7.3.110.0000.01714.91
7.3.100.0030.01414.89
7.3.90.0040.01415.27
7.3.80.0070.00315.25
7.3.70.0040.01214.95
7.3.60.0000.01015.13
7.3.50.0070.00715.08
7.3.40.0040.01215.08
7.3.30.0000.01214.79
7.3.20.0000.01516.85
7.3.10.0070.00716.80
7.3.00.0000.00916.84
7.2.330.0040.01316.66
7.2.320.0080.00816.61
7.2.310.0090.01216.70
7.2.300.0100.00616.64
7.2.290.0070.01416.87
7.2.250.0090.00915.09
7.2.240.0100.01014.96
7.2.230.0110.00615.23
7.2.220.0090.00315.02
7.2.210.0030.01014.99
7.2.200.0070.01015.04
7.2.190.0000.01515.23
7.2.180.0060.00615.20
7.2.170.0100.00315.09
7.2.60.0070.01017.03
7.2.00.0030.01019.26
7.1.330.0110.00315.97
7.1.320.0040.00716.07
7.1.310.0110.00716.23
7.1.300.0030.01315.99
7.1.290.0000.01616.17
7.1.280.0050.00515.86
7.1.270.0030.00616.14
7.1.260.0080.00415.91
7.1.200.0040.01115.82
7.1.100.0070.01118.26
7.1.70.0040.00417.12
7.1.60.0110.01519.22
7.1.50.0000.01017.10
7.1.00.0000.07722.38
7.0.200.0030.00717.01
7.0.140.0000.04022.13
7.0.60.0030.07720.02
7.0.50.0000.04717.87
7.0.40.0070.08720.04
7.0.30.0200.04320.18
7.0.20.0270.04320.13
7.0.10.0230.04020.18
7.0.00.0030.04320.20
5.6.280.0070.07021.12
5.6.210.0130.07320.51
5.6.200.0070.08018.12
5.6.190.0070.04320.60
5.6.180.4100.04720.67
5.6.170.0170.04720.48
5.6.160.0070.03720.37
5.6.150.0000.04318.12
5.6.140.0200.05318.21
5.6.130.0030.06018.16
5.6.120.0170.07321.12
5.6.110.0130.07021.11
5.6.100.0130.03020.98
5.6.90.0070.07320.98
5.6.80.0170.06720.38
5.6.70.0170.04320.40
5.5.350.0330.07320.38
5.5.340.0070.06017.91
5.5.330.0130.08020.40
5.5.320.0400.05320.32
5.5.310.0370.05020.28
5.5.300.0070.06717.95
5.5.290.0100.06317.92
5.5.280.0070.06320.87
5.5.270.0170.07020.76
5.5.260.0070.04720.76
5.5.250.0030.05320.57
5.5.240.0100.04020.28
5.4.450.0700.05319.46
5.4.440.0630.06019.14
5.4.430.0800.04719.42
5.4.420.0630.05719.46
5.4.410.0170.04719.39
5.4.400.0770.05018.97
5.4.390.0600.05719.06
5.4.380.0430.06318.67
5.4.370.0270.08018.67
5.4.360.0300.05018.67
5.4.350.0270.06718.49
5.4.340.0400.05718.65
5.4.320.0370.05018.47
5.4.310.0300.05018.48
5.4.300.0370.07318.68
5.4.290.0330.07718.48
5.4.280.0270.06318.57
5.4.270.0330.05318.48
5.4.260.0500.05318.68
5.4.250.0230.05718.51
5.4.240.0170.07018.51
5.4.230.0200.06718.66
5.4.220.0370.05318.59
5.4.210.0230.06018.47
5.4.200.0330.06016.55
5.4.190.0330.05018.56
5.4.180.0530.04018.62
5.4.170.0430.05018.59
5.4.160.0300.04718.64
5.4.150.0430.04018.64
5.4.140.0300.05716.22
5.4.130.0230.05716.24
5.4.120.0300.05316.25
5.4.110.0230.06016.06
5.4.100.0200.05716.21
5.4.90.0130.06716.25
5.4.80.0300.04716.30
5.4.70.0400.04316.13
5.4.60.0230.05316.16
5.4.50.0270.04716.04
5.4.40.0300.05016.27
5.4.30.0300.06016.03
5.4.20.0200.06016.11
5.4.10.0370.04016.22
5.4.00.0430.06015.71
5.3.290.0270.06014.59
5.3.280.0370.04714.54
5.3.270.0370.06014.59
5.3.260.0330.05714.63
5.3.250.0200.06014.63
5.3.240.0370.04314.58
5.3.230.0170.06314.60
5.3.220.0330.05014.47
5.3.210.0330.04714.65
5.3.200.0270.05314.60
5.3.190.0270.05014.46
5.3.180.0230.05314.54
5.3.170.0330.04314.59
5.3.160.0230.05714.49
5.3.150.0230.06014.66
5.3.140.0400.04714.65
5.3.130.0400.04314.46
5.3.120.0370.04314.46
5.3.110.0270.06314.52
5.3.100.0400.04714.09
5.3.90.0230.05313.93
5.3.80.0270.05314.00
5.3.70.0300.04714.09
5.3.60.0230.06314.10
5.3.50.0430.06013.97
5.3.40.0370.04713.85
5.3.30.0430.04714.00
5.3.20.0370.05313.64
5.3.10.0300.04713.68
5.3.00.0200.05713.63
5.2.170.0200.04311.13
5.2.160.0330.05311.05
5.2.150.0170.05011.18
5.2.140.0330.03311.20
5.2.130.0330.05011.05
5.2.120.0200.04711.16
5.2.110.0270.05711.24
5.2.100.0270.05711.06
5.2.90.0270.03711.09
5.2.80.0070.05711.13
5.2.70.0230.04311.13
5.2.60.0330.03310.98
5.2.50.0300.03311.07
5.2.40.0100.05010.95
5.2.30.0170.04710.93
5.2.20.0230.05311.10
5.2.10.0300.04310.91
5.2.00.0170.05010.75
5.1.60.0170.04710.13
5.1.50.0170.03710.02
5.1.40.0200.03010.07
5.1.30.0230.03010.48
5.1.20.0170.04010.50
5.1.10.0070.05010.16
5.1.00.0270.02710.20
5.0.50.0170.0278.52
5.0.40.0130.0378.38
5.0.30.0270.0508.29
5.0.20.0130.0238.21
5.0.10.0170.0238.29
5.0.00.0100.0438.13
4.4.90.0070.0236.58
4.4.80.0130.0176.58
4.4.70.0130.0236.58
4.4.60.0070.0236.58
4.4.50.0100.0276.58
4.4.40.0130.0436.58
4.4.30.0070.0236.58
4.4.20.0100.0236.58
4.4.10.0100.0206.58
4.4.00.0070.0406.58
4.3.110.0070.0236.58
4.3.100.0100.0206.58
4.3.90.0070.0236.58
4.3.80.0130.0306.58
4.3.70.0100.0206.58
4.3.60.0100.0236.58
4.3.50.0100.0206.58
4.3.40.0070.0336.58
4.3.30.0030.0236.58
4.3.20.0000.0276.58
4.3.10.0100.0176.58
4.3.00.0100.0277.34

preferences:
46.95 ms | 401 KiB | 5 Q