3v4l.org

run code in 300+ PHP versions simultaneously
<?php $count = 10000; $string = str_repeat("a", $count); echo 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)
8.3.60.0150.00016.61
8.3.50.0110.00722.16
8.3.40.0100.00718.89
8.3.30.0080.00819.13
8.3.20.0040.00420.46
8.3.10.0060.00323.95
8.3.00.0000.00819.79
8.2.180.0090.01316.63
8.2.170.0120.00322.96
8.2.160.0090.00620.35
8.2.150.0000.00924.18
8.2.140.0050.00324.66
8.2.130.0030.00526.16
8.2.120.0030.00621.05
8.2.110.0030.00622.33
8.2.100.0090.00318.03
8.2.90.0060.00319.34
8.2.80.0080.00018.00
8.2.70.0050.00318.00
8.2.60.0060.00318.18
8.2.50.0080.00018.07
8.2.40.0040.00418.41
8.2.30.0000.00818.53
8.2.20.0060.00318.02
8.2.10.0000.00718.29
8.2.00.0040.00419.76
8.1.280.0120.00325.92
8.1.270.0090.00024.10
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0060.00324.07
8.1.230.0030.00719.39
8.1.220.0040.00417.91
8.1.210.0080.00018.77
8.1.200.0000.00817.61
8.1.190.0040.00417.48
8.1.180.0000.00818.10
8.1.170.0000.00818.66
8.1.160.0080.00022.10
8.1.150.0040.00419.04
8.1.140.0040.00417.77
8.1.130.0000.00718.00
8.1.120.0040.00417.74
8.1.110.0050.00217.77
8.1.100.0080.00017.64
8.1.90.0000.00717.63
8.1.80.0040.00417.77
8.1.70.0000.00717.70
8.1.60.0060.00317.88
8.1.50.0040.00417.84
8.1.40.0000.00817.79
8.1.30.0040.00417.91
8.1.20.0040.00417.85
8.1.10.0040.00417.84
8.1.00.0030.00617.81
8.0.300.0000.00718.77
8.0.290.0040.00417.13
8.0.280.0000.00718.54
8.0.270.0050.00217.39
8.0.260.0040.00417.46
8.0.250.0030.00317.27
8.0.240.0030.00317.25
8.0.230.0030.00317.28
8.0.220.0000.00817.14
8.0.210.0000.00817.19
8.0.200.0050.00217.13
8.0.190.0000.00817.24
8.0.180.0050.00217.09
8.0.170.0000.00817.11
8.0.160.0080.00017.22
8.0.150.0000.00917.16
8.0.140.0000.00817.17
8.0.130.0060.00013.69
8.0.120.0000.00817.16
8.0.110.0050.00217.09
8.0.100.0040.00417.11
8.0.90.0000.00717.18
8.0.80.0080.00817.14
8.0.70.0070.00017.13
8.0.60.0000.00717.13
8.0.50.0080.00017.04
8.0.30.0160.00617.28
8.0.20.0100.00917.40
8.0.10.0000.00717.10
8.0.00.0140.00317.09
7.4.330.0000.00515.19
7.4.320.0060.00016.87
7.4.300.0040.00416.87
7.4.290.0070.00016.86
7.4.280.0030.00316.89
7.4.270.0050.00216.78
7.4.260.0080.00016.96
7.4.250.0040.00416.71
7.4.240.0020.00516.82
7.4.230.0070.00016.90
7.4.220.0120.00616.85
7.4.210.0030.01016.81
7.4.200.0040.00416.85
7.4.160.0070.01616.91
7.4.150.0100.01217.40
7.4.140.0120.00817.86
7.4.130.0100.00716.90
7.4.120.0050.01316.94
7.4.110.0070.01616.75
7.4.100.0120.00917.04
7.4.90.0090.01616.90
7.4.80.0120.00919.39
7.4.70.0130.00616.79
7.4.60.0060.01116.88
7.4.50.0030.00316.57
7.4.40.0120.00416.90
7.4.30.0130.00316.97
7.4.00.0070.01015.21
7.3.330.0000.00513.38
7.3.320.0000.00513.34
7.3.310.0040.00416.38
7.3.300.0000.00716.33
7.3.290.0070.00716.46
7.3.280.0090.01316.45
7.3.270.0070.01017.40
7.3.260.0190.00616.78
7.3.250.0130.01116.80
7.3.240.0060.01016.72
7.3.230.0180.00616.70
7.3.210.0140.00816.52
7.3.200.0090.01319.39
7.3.190.0100.00716.79
7.3.180.0130.00316.79
7.3.170.0090.01016.52
7.3.160.0070.00716.63
7.3.120.0090.00315.00
7.2.330.0070.01116.78
7.2.320.0100.00716.56
7.2.310.0110.01116.64
7.2.300.0100.00716.57
7.2.290.0150.00616.80
7.2.00.0060.01219.50
7.1.100.0000.01518.34
7.1.70.0050.00317.45
7.1.60.0060.01919.70
7.1.50.0110.01117.18
7.1.00.0030.07322.45
7.0.200.0040.00717.04
7.0.140.0130.06022.18
7.0.60.0100.07719.98
7.0.50.0100.06717.96
7.0.40.0100.04320.45
7.0.30.0670.07020.38
7.0.20.0300.04720.45
7.0.10.0230.05320.13
7.0.00.0030.07320.07
5.6.280.0100.07329.07
5.6.210.0100.05328.59
5.6.200.0100.08026.03
5.6.190.0130.05728.43
5.6.180.0330.07728.42
5.6.170.0270.08328.25
5.6.160.0070.04328.30
5.6.150.0030.05026.10
5.6.140.0070.08726.04
5.6.130.0230.07025.88
5.6.120.0070.05729.10
5.6.110.0030.04729.08
5.6.100.0030.06328.98
5.6.90.0100.08328.85
5.6.80.0070.08028.32
5.6.70.4330.03728.36
5.5.350.0130.08028.38
5.5.340.0000.04325.85
5.5.330.0070.04328.06
5.5.320.4000.04327.86
5.5.310.0070.05028.05
5.5.300.0030.04325.80
5.5.290.0100.05025.90
5.5.280.0130.05028.62
5.5.270.0000.04728.61
5.5.260.0170.07028.73
5.5.250.0170.08028.68
5.5.240.0370.06328.20
5.4.450.0370.07327.16
5.4.440.0370.07327.48
5.4.430.0330.07027.44
5.4.420.0300.03327.30
5.4.410.0370.06326.98
5.4.400.0370.05726.90
5.4.390.0300.04027.15
5.4.380.0300.04726.98
5.4.370.0370.04026.91
5.4.360.0270.03726.70
5.4.350.0200.04026.94
5.4.340.0330.05326.96
5.4.320.0270.03726.98
5.4.310.0270.03726.83
5.4.300.0230.04026.71
5.4.290.0300.03726.77
5.4.280.0270.04326.71
5.4.270.0330.04026.83
5.4.260.0270.05726.98
5.4.250.0370.07026.95
5.4.240.0330.04326.92
5.4.230.0330.04326.95
5.4.220.0330.07727.10
5.4.210.0300.04026.71
5.4.200.0300.04026.82
5.4.190.0230.05026.68
5.4.180.0330.04326.71
5.4.170.0230.05326.97
5.4.160.0370.04727.13
5.4.150.0330.05027.10
5.4.140.0230.04024.11
5.4.130.0270.03324.21
5.4.120.0330.05024.13
5.4.110.0330.06723.99
5.4.100.0270.04324.22
5.4.90.0230.05724.37
5.4.80.0270.07024.32
5.4.70.0270.07024.15
5.4.60.0200.05023.97
5.4.50.0300.04324.24
5.4.40.0230.03724.21
5.4.30.0330.06024.21
5.4.20.0230.03323.99
5.4.10.0170.04724.31
5.4.00.0300.05323.64
5.3.290.0430.06722.31
5.3.280.0300.04722.24
5.3.270.0300.07322.26
5.3.260.0330.04022.38
5.3.250.0330.04722.33
5.3.240.0270.03322.38
5.3.230.0270.04022.23
5.3.220.0270.05022.22
5.3.210.0230.04022.22
5.3.200.0270.06322.36
5.3.190.0430.05722.43
5.3.180.0270.07322.45
5.3.170.0270.07022.21
5.3.160.0230.03322.21
5.3.150.0200.04022.32
5.3.140.0230.03322.19
5.3.130.0330.06722.20
5.3.120.0270.04022.41
5.3.110.0230.07722.22
5.3.100.0230.04021.91
5.3.90.0230.03721.70
5.3.80.0370.03321.57
5.3.70.0230.03721.70
5.3.60.0470.03721.58
5.3.50.0300.03721.66
5.3.40.0300.07021.76
5.3.30.0370.06321.50
5.3.20.0300.04021.39
5.3.10.0300.04021.33
5.3.00.0370.05321.32
5.2.170.0230.05318.80
5.2.160.0170.03318.93
5.2.150.0270.05018.94
5.2.140.0270.05018.91
5.2.130.0230.03718.74
5.2.120.0230.03018.84
5.2.110.0300.03718.98
5.2.100.0230.03018.76
5.2.90.0370.05018.75
5.2.80.0330.05318.74
5.2.70.0400.03018.84
5.2.60.0270.04018.64
5.2.50.0300.04018.76
5.2.40.0200.03318.65
5.2.30.0230.05318.62
5.2.20.0230.04718.87
5.2.10.0230.05718.64
5.2.00.0270.05318.63
5.1.60.0270.02317.76
5.1.50.0270.05317.67
5.1.40.0230.05017.74
5.1.30.0200.03718.15
5.1.20.0170.03718.15
5.1.10.0200.05717.79
5.1.00.0330.04717.84
5.0.50.0200.04316.42
5.0.40.0200.04016.36
5.0.30.0100.04316.17
5.0.20.0200.04015.91
5.0.10.0170.04715.96
5.0.00.0170.05015.95
4.4.90.0230.02713.71
4.4.80.0170.03313.74
4.4.70.0170.03713.70
4.4.60.0170.03313.70
4.4.50.0130.02313.68
4.4.40.0130.05313.68
4.4.30.0200.02313.68
4.4.20.0170.03713.73
4.4.10.0130.02313.86
4.4.00.0170.03013.77
4.3.110.0100.03313.67
4.3.100.0130.03313.68
4.3.90.0130.03713.69
4.3.80.0200.04013.69
4.3.70.0130.02313.67
4.3.60.0230.02313.65
4.3.50.0130.03713.62
4.3.40.0100.03013.68
4.3.30.0200.01712.46
4.3.20.0070.03312.14
4.3.10.0070.01712.07
4.3.00.0070.01712.05

preferences:
41.16 ms | 401 KiB | 5 Q