3v4l.org

run code in 300+ PHP versions simultaneously
<?php $count = 7999; $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)
8.3.70.0090.00617.00
8.3.60.0140.00716.63
8.3.50.0110.01022.13
8.3.40.0140.00719.11
8.3.30.0160.00619.04
8.3.20.0030.01020.46
8.3.10.0040.00423.56
8.3.00.0040.00421.21
8.2.180.0110.00718.42
8.2.170.0170.00322.96
8.2.160.0100.00320.77
8.2.150.0070.01024.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0080.00021.16
8.2.110.0090.00022.32
8.2.100.0090.00319.88
8.2.90.0040.00419.23
8.2.80.0060.00318.00
8.2.70.0040.00418.00
8.2.60.0040.00418.05
8.2.50.0040.00418.07
8.2.40.0040.00421.38
8.2.30.0020.00518.39
8.2.20.0000.00817.95
8.2.10.0040.00418.29
8.2.00.0050.00318.03
8.1.280.0070.00725.92
8.1.270.0070.00724.21
8.1.260.0080.00026.35
8.1.250.0090.00928.09
8.1.240.0090.00024.14
8.1.230.0040.00819.25
8.1.220.0000.00917.88
8.1.210.0040.00418.77
8.1.200.0060.00317.48
8.1.190.0000.00817.50
8.1.180.0000.00818.10
8.1.170.0040.00418.95
8.1.160.0000.00822.19
8.1.150.0000.00818.83
8.1.140.0040.00417.73
8.1.130.0000.00718.02
8.1.120.0000.00717.69
8.1.110.0000.00817.74
8.1.100.0040.00417.61
8.1.90.0000.00717.79
8.1.80.0000.00717.76
8.1.70.0070.00017.60
8.1.60.0030.00617.89
8.1.50.0060.00317.74
8.1.40.0040.00417.84
8.1.30.0000.00817.97
8.1.20.0000.00817.91
8.1.10.0050.00317.74
8.1.00.0040.00417.61
8.0.300.0040.00418.77
8.0.290.0040.00417.41
8.0.280.0000.00718.51
8.0.270.0030.00317.43
8.0.260.0030.00317.42
8.0.250.0070.00017.14
8.0.240.0040.00417.10
8.0.230.0000.00817.11
8.0.220.0070.00017.01
8.0.210.0030.00317.16
8.0.200.0040.00417.11
8.0.190.0030.00517.24
8.0.180.0000.00817.08
8.0.170.0040.00417.21
8.0.160.0000.00717.24
8.0.150.0050.00217.10
8.0.140.0000.00817.18
8.0.130.0030.00313.56
8.0.120.0000.00817.15
8.0.110.0000.00717.08
8.0.100.0040.00417.05
8.0.90.0000.00717.05
8.0.80.0080.00817.12
8.0.70.0040.00417.21
8.0.60.0040.00417.17
8.0.50.0040.00417.10
8.0.30.0130.00617.37
8.0.20.0110.00817.45
8.0.10.0000.00817.34
8.0.00.0130.00517.10
7.4.330.0000.00615.19
7.4.320.0060.00016.97
7.4.300.0060.00016.93
7.4.290.0040.00416.76
7.4.280.0050.00316.97
7.4.270.0040.00716.88
7.4.260.0000.01016.94
7.4.250.0040.00416.80
7.4.240.0030.00416.91
7.4.230.0040.00416.88
7.4.220.0130.01017.05
7.4.210.0100.00716.93
7.4.200.0080.00016.84
7.4.190.0000.00716.94
7.4.160.0130.00316.75
7.4.150.0070.01017.40
7.4.140.0130.01317.86
7.4.130.0070.01016.91
7.4.120.0090.00816.80
7.4.110.0120.00416.68
7.4.100.0070.01316.68
7.4.90.0060.01516.61
7.4.80.0060.01519.39
7.4.70.0060.01216.70
7.4.60.0100.01416.75
7.4.50.0060.00316.85
7.4.40.0090.00816.71
7.4.30.0060.01016.99
7.4.00.0070.00315.40
7.3.330.0030.00313.38
7.3.320.0060.00013.21
7.3.310.0030.00516.42
7.3.300.0070.00016.50
7.3.290.0060.00916.45
7.3.280.0080.01016.54
7.3.270.0110.00617.40
7.3.260.0100.01016.63
7.3.250.0160.00616.76
7.3.240.0150.00316.52
7.3.230.0080.00816.97
7.3.210.0060.01816.49
7.3.200.0150.00319.39
7.3.190.0060.01216.71
7.3.180.0100.00616.81
7.3.170.0100.00716.52
7.3.160.0170.00016.56
7.3.120.0030.01015.09
7.2.330.0100.01416.69
7.2.320.0150.00316.92
7.2.310.0130.01316.68
7.2.300.0120.00616.80
7.2.290.0140.00216.62
7.2.60.0100.00616.30
7.2.50.0040.00716.98
7.2.00.0060.00919.58
7.1.200.0040.01115.70
7.1.70.0020.00517.23
7.1.60.0140.01019.46
7.1.50.0040.01817.18
7.1.00.0030.07722.36
7.0.200.0090.00616.65
7.0.140.0070.06721.97
7.0.90.0130.08019.91
7.0.80.0100.07319.98
7.0.70.0070.07019.98
7.0.60.0070.07720.02
7.0.50.0070.04020.33
7.0.40.0030.08320.20
7.0.30.0070.08320.16
7.0.20.0130.04720.08
7.0.10.0000.05720.11
7.0.00.0170.03720.07
5.6.280.0070.07729.10
5.6.230.0130.05728.56
5.6.220.0170.07328.48
5.6.210.0100.07728.38
5.6.200.0200.07728.92
5.6.190.0130.06328.73
5.6.180.0070.06028.95
5.6.170.0100.08028.71
5.6.160.0070.07728.91
5.6.150.0170.06028.77
5.6.140.0100.09028.78
5.6.130.0130.04028.82
5.6.120.0100.08028.88
5.6.110.0170.05728.87
5.6.100.0170.07328.82
5.6.90.0100.07328.86
5.6.80.0130.06728.13
5.6.70.0030.05028.16
5.6.60.0070.05028.11
5.6.50.0070.05728.24
5.6.40.0130.03728.27
5.6.30.0130.07728.09
5.6.20.0170.08028.09
5.6.10.0130.08328.24
5.6.00.0130.08028.19
5.5.370.0130.07328.34
5.5.360.0130.08728.27
5.5.350.0170.07028.20
5.5.340.0070.09328.66
5.5.330.0070.08328.61
5.5.320.0170.05328.66
5.5.310.0100.04728.65
5.5.300.0130.08028.41
5.5.290.0170.07728.55
5.5.280.0170.07728.64
5.5.270.0130.08328.52
5.5.260.0130.09028.41
5.5.250.0170.07328.48
5.5.240.0100.08327.80
5.5.230.0130.07327.91
5.5.220.0130.05727.88
5.5.210.0100.07728.01
5.5.200.0230.04027.93
5.5.190.0270.06727.85
5.5.180.0200.03728.05
5.5.160.0130.07727.77
5.5.150.0100.04028.04
5.5.140.0200.07327.86
5.5.130.0130.06728.04
5.5.120.0100.08027.86
5.5.110.0070.04327.91
5.5.100.0030.06727.85
5.5.90.0100.04327.84
5.5.80.0030.08027.84
5.5.70.0130.08027.86
5.5.60.0100.08027.84
5.5.50.0070.05727.83
5.5.40.0000.06027.89
5.5.30.0130.05027.82
5.5.20.0030.08327.91
5.5.10.0070.04727.85
5.5.00.0100.06327.82
5.4.450.0100.06326.77
5.4.440.0070.08026.64
5.4.430.0130.08026.67
5.4.420.0100.08326.70
5.4.410.0170.07326.61
5.4.400.0070.05326.44
5.4.390.0130.07726.56
5.4.380.0070.04726.30
5.4.370.0170.07026.37
5.4.360.0130.04726.54
5.4.350.0030.09026.46
5.4.340.0170.07326.12
5.4.320.0130.03726.28
5.4.310.0000.05326.28
5.4.300.0100.04326.43
5.4.290.0270.06326.22
5.4.280.0170.07726.54
5.4.270.0170.06326.32
5.4.260.0070.05026.34
5.4.250.0030.05326.21
5.4.240.0070.04726.35
5.4.230.0030.08726.34
5.4.220.0170.07326.29
5.4.210.0070.04726.36
5.4.200.0200.06326.43
5.4.190.0030.07726.20
5.4.180.0070.04726.44
5.4.170.0100.08326.06
5.4.160.0070.05726.27
5.4.150.0070.07726.07
5.4.140.0100.03723.60
5.4.130.0170.06323.67
5.4.120.0130.06323.59
5.4.110.0070.06723.64
5.4.100.0130.06723.66
5.4.90.0130.03723.62
5.4.80.0100.07022.80
5.4.70.0070.08022.97
5.4.60.0100.07022.82
5.4.50.0170.04722.76
5.4.40.0230.06723.02
5.4.30.0070.05322.76
5.4.20.0100.06722.98
5.4.10.0070.08022.91
5.4.00.0030.07722.15
5.3.290.0100.07021.96
5.3.280.0070.08321.68
5.3.270.0130.07721.63
5.3.260.0070.08021.64
5.3.250.0170.04721.64
5.3.240.0030.08021.64
5.3.230.0130.07721.66
5.3.220.0170.07022.28
5.3.210.0100.07022.32
5.3.200.0130.04722.38
5.3.190.0200.06022.23
5.3.180.0100.04322.31
5.3.170.0130.03722.23
5.3.160.0170.07022.22
5.3.150.0100.08022.21
5.3.140.0130.03722.16
5.3.130.0100.08022.22
5.3.120.0070.05722.19
5.3.110.0100.07322.36
5.3.100.0130.07321.75
5.3.90.0070.07321.65
5.3.80.0100.07321.61
5.3.70.0130.06721.63
5.3.60.0100.04021.58
5.3.50.0100.04321.70
5.3.40.0130.06721.62
5.3.30.0100.05321.50
5.3.20.0130.04021.34
5.3.10.0070.06021.36
5.3.00.0070.05321.25
5.2.170.0070.03718.86
5.2.160.0170.03018.81
5.2.150.0070.06318.95
5.2.140.0100.06018.73
5.2.130.0170.05718.69
5.2.120.0100.05718.72
5.2.110.0170.04318.83
5.2.100.0100.05718.80
5.2.90.0000.05318.62
5.2.80.0030.07018.84
5.2.70.0070.04018.76
5.2.60.0100.06018.77
5.2.50.0100.06018.65
5.2.40.0130.06018.74
5.2.30.0070.07018.39
5.2.20.0130.06318.42
5.2.10.0130.05018.25
5.2.00.0100.05718.19
5.1.60.0070.04017.58
5.1.50.0070.06017.41
5.1.40.0130.05317.56
5.1.30.0100.05717.84
5.1.20.0070.05017.97
5.1.10.0100.04717.61
5.1.00.0070.05717.62
5.0.50.0100.02315.95
5.0.40.0030.02315.04
5.0.30.0100.05314.69
5.0.20.0100.04314.90
5.0.10.0130.04314.82
5.0.00.0100.06314.79
4.4.90.0130.03313.66
4.4.80.0070.03713.66
4.4.70.0030.04013.66
4.4.60.0030.04013.66
4.4.50.0100.03013.66
4.4.40.0100.05313.66
4.4.30.0000.04013.66
4.4.20.0070.03313.66
4.4.10.0100.03313.66
4.4.00.0070.04013.66
4.3.110.0070.03713.66
4.3.100.0070.03713.66
4.3.90.0030.04013.66
4.3.80.0070.05313.66
4.3.70.0070.03713.66
4.3.60.0030.03713.66
4.3.50.0030.03713.66
4.3.40.0030.05313.66
4.3.30.0100.03013.66
4.3.20.0030.03313.66
4.3.10.0070.03713.66
4.3.00.0130.03013.66

preferences:
35.02 ms | 401 KiB | 5 Q