3v4l.org

run code in 300+ PHP versions simultaneously
<?php $count = 10000; $string = str_repeat("a", $count); var_dump(preg_match('/\A(?> [\x09\x0A\x0D\x20-\x7E] | [\xC2-\xDF][\x80-\xBF] | \xE0[\xA0-\xBF][\x80-\xBF] | [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} | \xED[\x80-\x9F][\x80-\xBF] | \xF0[\x90-\xBF][\x80-\xBF]{2} | [\xF1-\xF3][\x80-\xBF]{3} | \xF4[\x80-\x8F][\x80-\xBF]{2} )*\z/x', $string)); ?>

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)
8.3.60.0100.01016.75
8.3.50.0090.00717.63
8.3.40.0090.00918.96
8.3.30.0180.00418.94
8.3.20.0060.00319.04
8.3.10.0030.00620.61
8.3.00.0030.00519.63
8.2.180.0070.01118.67
8.2.170.0060.01222.96
8.2.160.0150.00020.50
8.2.150.0060.00324.18
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0040.00420.88
8.2.110.0000.00920.94
8.2.100.0090.00317.85
8.2.90.0080.00021.20
8.2.80.0040.00419.56
8.2.70.0050.00317.88
8.2.60.0000.00817.92
8.2.50.0000.00818.07
8.2.40.0040.00418.34
8.2.30.0040.00418.01
8.2.20.0000.00719.56
8.2.10.0050.00317.96
8.2.00.0000.00717.86
8.1.280.0030.01225.92
8.1.270.0040.00424.66
8.1.260.0030.00526.35
8.1.250.0040.01128.09
8.1.240.0060.00324.05
8.1.230.0070.00420.80
8.1.220.0000.00817.74
8.1.210.0060.00319.03
8.1.200.0060.00317.47
8.1.190.0080.00017.63
8.1.180.0000.00818.10
8.1.170.0000.00818.88
8.1.160.0040.00418.95
8.1.150.0040.00418.73
8.1.140.0000.00717.67
8.1.130.0070.00017.98
8.1.120.0000.00717.64
8.1.110.0030.00517.62
8.1.100.0070.00017.63
8.1.90.0000.00817.54
8.1.80.0050.00217.67
8.1.70.0000.00817.53
8.1.60.0090.00017.72
8.1.50.0000.00917.64
8.1.40.0050.00517.68
8.1.30.0000.00817.84
8.1.20.0070.00017.70
8.1.10.0060.00317.74
8.1.00.0000.00717.64
8.0.300.0000.00920.08
8.0.290.0000.00816.88
8.0.280.0040.00418.50
8.0.270.0030.00317.30
8.0.260.0030.00517.06
8.0.250.0080.00017.11
8.0.240.0030.00317.04
8.0.230.0070.00017.11
8.0.220.0050.00317.13
8.0.210.0000.00816.96
8.0.200.0040.00417.19
8.0.190.0000.00717.11
8.0.180.0040.00416.98
8.0.170.0050.00317.05
8.0.160.0000.00717.03
8.0.150.0040.00416.86
8.0.140.0040.00416.99
8.0.130.0060.00013.46
8.0.120.0080.00016.99
8.0.110.0040.00417.10
8.0.100.0000.00716.98
8.0.90.0000.00817.08
8.0.80.0090.00917.12
8.0.70.0050.00317.10
8.0.60.0040.00417.00
8.0.50.0030.00517.09
8.0.30.0120.00917.18
8.0.20.0110.00817.17
8.0.10.0030.00517.08
8.0.00.0060.01316.87
7.4.330.0050.00013.22
7.4.320.0070.00316.81
7.4.300.0030.00316.81
7.4.290.0070.00016.77
7.4.280.0030.00616.70
7.4.270.0030.00316.68
7.4.260.0060.00013.48
7.4.250.0040.00416.75
7.4.240.0030.00316.83
7.4.230.0040.00416.79
7.4.220.0000.01816.83
7.4.210.0060.00916.79
7.4.200.0040.00416.72
7.4.190.0030.00316.70
7.4.160.0080.00816.60
7.4.150.0130.00416.74
7.4.140.0110.00816.77
7.4.130.0090.01016.90
7.4.120.0080.01016.65
7.4.110.0110.01116.80
7.4.100.0120.00916.66
7.4.90.0090.00916.47
7.4.80.0090.00919.39
7.4.70.0060.01016.73
7.4.60.0140.00316.66
7.4.50.0080.00416.64
7.4.40.0080.00316.45
7.4.30.0040.01316.63
7.4.00.0070.01015.03
7.3.330.0000.00713.20
7.3.320.0000.00613.21
7.3.310.0030.00316.44
7.3.300.0000.00716.39
7.3.290.0060.01216.41
7.3.280.0080.00816.35
7.3.270.0080.00816.64
7.3.260.0120.00916.57
7.3.250.0130.00616.50
7.3.240.0070.01016.40
7.3.230.0100.00716.32
7.3.210.0060.01216.62
7.3.200.0060.00916.58
7.3.190.0060.01016.66
7.3.180.0100.00716.39
7.3.170.0110.00916.41
7.3.160.0060.01116.54
7.3.120.0060.01114.90
7.3.110.0100.00514.67
7.3.100.0070.01214.93
7.3.90.0020.01214.73
7.3.80.0060.00714.89
7.3.70.0060.00514.75
7.3.60.0040.01314.95
7.3.50.0070.01114.66
7.3.40.0070.00514.69
7.3.30.0020.01114.59
7.3.20.0070.00916.68
7.3.10.0100.00516.54
7.3.00.0050.00816.85
7.2.330.0150.00316.63
7.2.320.0030.01916.89
7.2.310.0060.01616.74
7.2.300.0100.00716.70
7.2.290.0030.01316.77
7.2.250.0070.01315.11
7.2.240.0080.00815.16
7.2.230.0080.01015.10
7.2.220.0030.00915.18
7.2.210.0080.00614.93
7.2.200.0070.00814.93
7.2.190.0090.00815.11
7.2.180.0070.01015.01
7.2.170.0050.00715.01
7.2.160.0070.00715.00
7.2.150.0060.00617.00
7.2.140.0030.01617.02
7.2.130.0040.00816.85
7.2.120.0040.00916.93
7.2.110.0090.00216.97
7.2.100.0020.01016.80
7.2.90.0100.00617.04
7.2.80.0050.01416.91
7.2.70.0060.00817.04
7.2.60.0090.00816.74
7.2.50.0020.01417.02
7.2.40.0090.00716.88
7.2.30.0040.01116.97
7.2.20.0060.01016.85
7.2.10.0060.01016.74
7.2.00.0090.00617.69
7.1.330.0070.00716.11
7.1.320.0050.00815.98
7.1.310.0040.00815.86
7.1.300.0030.01315.79
7.1.290.0070.00815.64
7.1.280.0050.00815.93
7.1.270.0080.00615.74
7.1.260.0080.00815.92
7.1.250.0050.00615.98
7.1.200.0030.00815.63
7.1.70.0030.00517.46
7.1.60.0000.01517.14
7.1.50.0070.02217.06
7.1.00.0030.04722.52
7.0.200.0070.00716.78
7.0.140.0030.07022.05
7.0.120.0030.07022.01
7.0.60.0130.07319.93
7.0.50.0000.04317.86
7.0.40.0130.08020.26
7.0.30.0430.04320.14
7.0.20.0170.07020.08
7.0.10.0270.07320.24
7.0.00.0130.06320.23
5.6.280.0030.07326.14
5.6.210.0070.06325.52
5.6.200.0170.08022.95
5.6.190.0100.04725.23
5.6.180.3800.05025.46
5.6.170.0200.06725.43
5.6.160.0070.07325.38
5.6.150.0030.04023.03
5.6.140.0130.08023.06
5.6.130.0030.06022.98
5.6.120.0030.04325.99
5.6.110.0200.07325.89
5.6.100.0170.07325.81
5.6.90.0000.05325.73
5.6.80.0100.08025.11
5.6.70.0270.07025.23
5.5.350.0100.06025.26
5.5.340.0100.08022.79
5.5.330.0030.04325.23
5.5.320.0570.06325.11
5.5.310.0300.07725.10
5.5.300.0030.04322.79
5.5.290.0170.07322.86
5.5.280.0100.08025.63
5.5.270.0100.05025.72
5.5.260.0100.04325.80
5.5.250.0100.05725.47
5.5.240.0070.08725.04
5.4.450.0000.04324.04
5.4.440.0070.08323.82
5.4.430.0030.08323.70
5.4.420.0070.05723.90
5.4.410.0070.04723.94
5.4.400.0130.03723.69
5.4.390.0100.07723.73
5.4.380.0130.07023.38
5.4.370.0030.04323.68
5.4.360.0070.04723.36
5.4.350.0130.07023.49
5.4.340.0170.03023.65
5.4.320.0100.08023.73
5.4.310.0100.04323.77
5.4.300.0070.08023.37
5.4.290.0130.08023.73
5.4.280.0070.08023.64
5.4.270.0200.05023.57
5.4.260.0030.05323.37
5.4.250.0100.07723.78
5.4.240.0070.05323.35
5.4.230.0130.07323.35
5.4.220.0000.08723.70
5.4.210.0070.04723.38
5.4.200.0100.07723.38
5.4.190.0130.06023.74
5.4.180.0130.07023.71
5.4.170.0130.06323.74
5.4.160.0100.06723.63
5.4.150.0200.03723.73
5.4.140.0100.06020.76
5.4.130.0000.05320.90
5.4.120.0100.06720.85
5.4.110.0070.07020.85
5.4.100.0100.03320.74
5.4.90.0100.08020.82
5.4.80.0100.06720.33
5.4.70.0030.05020.46
5.4.60.0070.07720.48
5.4.50.0130.03720.41
5.4.40.0230.03020.33
5.4.30.0030.07720.37
5.4.20.0030.06020.39
5.4.10.0070.04320.68
5.4.00.0170.06719.89
5.3.290.0100.08019.14
5.3.280.0100.08018.96
5.3.270.0030.05718.98
5.3.260.0170.07018.95
5.3.250.0070.07018.99
5.3.240.0100.03719.04
5.3.230.0030.05018.95
5.3.220.0030.07321.81
5.3.210.0070.05321.77
5.3.200.0070.04021.98
5.3.190.0100.06721.86
5.3.180.0100.03722.20
5.3.170.0130.04322.07
5.3.160.0100.08021.97
5.3.150.0100.07322.14
5.3.140.0070.08022.14
5.3.130.0130.06722.11
5.3.120.0100.07022.28
5.3.110.0130.07722.27
5.3.100.0100.05721.68
5.3.90.0170.06319.30
5.3.80.0130.07319.34
5.3.70.0170.06019.43
5.3.60.0100.06719.57
5.3.50.0130.07319.51
5.3.40.0170.07019.55
5.3.30.0070.04019.04
5.3.20.0070.07319.11
5.3.10.0130.06718.77
5.3.00.0070.03718.61
5.2.170.0070.05016.66
5.2.160.0070.06716.33
5.2.150.0170.03716.43
5.2.140.0070.07016.33
5.2.130.0100.06316.28
5.2.120.0130.06016.37
5.2.110.0100.06016.27
5.2.100.0100.06316.29
5.2.90.0100.06716.02
5.2.80.0170.05716.09
5.2.70.0030.06716.11
5.2.60.0100.06015.96
5.2.50.0130.06015.97
5.2.40.0030.05016.19
5.2.30.0100.06315.64
5.2.20.0030.05715.71
5.2.10.0130.05715.45
5.2.00.0030.06715.45
5.1.60.0100.02714.79
5.1.50.0030.03714.74
5.1.40.0030.04014.61
5.1.30.0130.02315.06
5.1.20.0100.05715.07
5.1.10.0070.04314.81
5.1.00.0000.03714.79
5.0.50.0070.04313.18
5.0.40.0030.02312.43
5.0.30.0070.06312.24
5.0.20.0070.03312.29
5.0.10.0070.04712.26
5.0.00.0070.03312.27
4.4.90.0030.04010.91
4.4.80.0030.02010.58
4.4.70.0070.03710.50
4.4.60.0070.02010.57
4.4.50.0000.03010.63
4.4.40.0000.02710.62
4.4.30.0030.04010.55
4.4.20.0030.02710.59
4.4.10.0030.03710.68
4.4.00.0000.05310.65
4.3.110.0130.0279.86
4.3.100.0070.0339.85
4.3.90.0070.0339.91
4.3.80.0070.0509.84
4.3.70.0030.0209.88
4.3.60.0030.0309.85
4.3.50.0030.0239.83
4.3.40.0100.0339.76
4.3.30.0000.0238.67
4.3.20.0000.0238.37
4.3.10.0030.0378.19
4.3.00.0030.0378.26

preferences:
56.58 ms | 401 KiB | 5 Q