3v4l.org

run code in 300+ PHP versions simultaneously
<?php $controllerName = 'a:'; var_dump(preg_match('/^[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*$/', $controllerName)); eval('class '.$controllerName.' {}'); exit;

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)
8.3.70.0070.00717.00
8.3.60.0070.01518.80
8.3.50.0170.00522.05
8.3.40.0070.00719.15
8.3.30.0060.00919.10
8.3.20.0040.00418.91
8.3.10.0040.00421.34
8.3.00.0030.00723.73
8.2.180.0070.01116.75
8.2.170.0120.00622.96
8.2.160.0100.00320.39
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0070.00026.16
8.2.120.0030.01219.66
8.2.110.0060.00322.08
8.2.100.0090.00318.09
8.2.90.0080.00019.19
8.2.80.0040.00417.97
8.2.70.0080.00017.75
8.2.60.0040.00417.93
8.2.50.0040.00418.07
8.2.40.0050.00319.74
8.2.30.0000.00821.11
8.2.20.0000.00717.78
8.2.10.0080.00017.82
8.2.00.0000.00818.00
8.1.280.0030.01225.92
8.1.270.0040.00423.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00023.90
8.1.230.0080.00320.90
8.1.220.0090.00017.76
8.1.210.0000.00818.77
8.1.200.0030.00717.48
8.1.190.0040.00417.48
8.1.180.0030.00618.10
8.1.170.0000.00818.63
8.1.160.0040.00418.84
8.1.150.0000.00818.77
8.1.140.0050.00317.65
8.1.130.0000.00817.80
8.1.120.0000.00717.65
8.1.110.0000.00817.47
8.1.100.0020.00517.61
8.1.90.0000.00717.47
8.1.80.0040.00417.65
8.1.70.0030.00317.50
8.1.60.0040.00417.75
8.1.50.0050.00317.61
8.1.40.0030.00817.63
8.1.30.0000.00817.79
8.1.20.0000.00917.79
8.1.10.0060.00317.71
8.1.00.0030.00617.63
8.0.300.0040.00418.77
8.0.290.0000.00716.75
8.0.280.0000.00718.39
8.0.270.0030.00317.32
8.0.260.0070.00017.06
8.0.250.0070.00017.13
8.0.240.0030.00617.14
8.0.230.0030.00317.19
8.0.220.0040.00417.00
8.0.210.0050.00217.12
8.0.200.0030.00317.15
8.0.190.0060.00317.15
8.0.180.0070.00017.17
8.0.170.0100.00017.00
8.0.160.0030.00317.05
8.0.150.0040.00417.07
8.0.140.0050.00317.10
8.0.130.0000.00613.53
8.0.120.0020.00517.13
8.0.110.0080.00017.09
8.0.100.0000.00717.12
8.0.90.0000.00717.06
8.0.80.0090.00617.09
8.0.70.0080.00017.13
8.0.60.0050.00317.05
8.0.50.0070.00016.91
8.0.30.0160.00317.39
8.0.20.0130.00917.40
8.0.10.0080.00017.28
8.0.00.0100.01116.99
7.4.330.0060.00015.17
7.4.320.0000.00616.79
7.4.300.0030.00316.70
7.4.290.0070.00016.69
7.4.280.0030.00316.68
7.4.270.0000.00716.60
7.4.260.0000.00513.46
7.4.250.0000.00816.76
7.4.240.0050.00316.60
7.4.230.0070.00016.76
7.4.220.0100.00716.77
7.4.210.0070.00816.79
7.4.200.0000.00716.46
7.4.190.0030.00316.98
7.4.160.0030.01716.80
7.4.150.0030.01317.40
7.4.140.0070.01017.86
7.4.130.0100.01016.71
7.4.120.0110.00616.81
7.4.110.0130.00816.50
7.4.100.0100.00716.50
7.4.90.0110.00616.78
7.4.80.0100.00619.39
7.4.70.0060.01516.58
7.4.60.0040.01516.79
7.4.50.0060.00316.60
7.4.40.0090.00922.52
7.4.30.0080.00816.77
7.4.00.0090.00615.24
7.3.330.0000.00613.51
7.3.320.0000.00513.42
7.3.310.0000.00716.44
7.3.300.0030.00316.51
7.3.290.0120.00316.50
7.3.280.0070.00816.49
7.3.270.0130.00317.40
7.3.260.0120.01118.24
7.3.250.0160.00316.61
7.3.240.0120.00616.82
7.3.230.0060.01016.57
7.3.210.0060.01216.64
7.3.200.0160.00019.39
7.3.190.0100.01016.50
7.3.180.0110.00516.63
7.3.170.0130.00316.68
7.3.160.0070.01016.48
7.3.120.0000.01515.22
7.2.330.0070.01016.75
7.2.320.0100.00616.83
7.2.310.0140.00516.82
7.2.300.0030.01316.67
7.2.290.0200.00716.73
7.2.00.0030.01219.68
7.1.100.0080.00818.13
7.1.70.0020.00517.27
7.1.60.0030.02019.40
7.1.50.0070.01117.09
7.1.00.0030.03322.47
7.0.200.0030.00716.89
7.0.140.0030.07022.13
7.0.70.0070.06721.93
7.0.60.0000.05721.86
7.0.50.0030.08322.20
7.0.40.0070.08320.15
7.0.30.0030.08720.17
7.0.20.0170.07719.95
7.0.10.0100.07720.19
7.0.00.0030.05720.10
5.6.280.0030.07321.11
5.6.220.0070.07020.67
5.6.210.0070.07720.48
5.6.200.0000.09021.04
5.6.190.0030.08321.09
5.6.180.0030.08721.03
5.6.170.0030.04721.11
5.6.160.0030.05721.05
5.6.150.0070.08021.16
5.6.140.0030.07021.07
5.6.130.0070.08321.01
5.6.120.0000.08721.09
5.6.110.0100.08021.00
5.6.100.0100.08321.02
5.6.90.0070.08320.93
5.6.80.0070.06020.39
5.6.70.0030.07320.43
5.6.60.0000.08320.37
5.6.50.0030.03720.48
5.6.40.0030.08320.30
5.6.30.0000.07720.44
5.6.20.0000.08020.36
5.6.10.0070.07720.45
5.6.00.0130.07020.41
5.5.360.0070.08320.49
5.5.350.0000.09320.41
5.5.340.0030.09020.92
5.5.330.0100.08020.80
5.5.320.0000.09020.75
5.5.310.0070.05320.88
5.5.300.0070.08020.82
5.5.290.0070.07720.91
5.5.280.0030.09020.63
5.5.270.0000.08320.78
5.5.260.0030.08320.88
5.5.250.0100.08020.43
5.5.240.0100.05020.24
5.5.230.0070.04020.20
5.5.220.0100.04020.20
5.5.210.0100.03320.10
5.5.200.0100.07720.06
5.5.190.0130.07020.07
5.5.180.0100.06720.23
5.5.160.0070.05720.24
5.5.150.0030.05720.27
5.5.140.0070.04320.25
5.5.130.0030.04020.11
5.5.120.0070.07320.27
5.5.110.0000.06720.16
5.5.100.0130.04720.07
5.5.90.0100.07020.06
5.5.80.0030.06720.08
5.5.70.0070.06720.05
5.5.60.0070.07720.04
5.5.50.0030.08319.89
5.5.40.0030.08019.95
5.5.30.0000.05020.08
5.5.20.0030.07319.98
5.5.10.0030.07320.07
5.5.00.0000.08020.02
5.4.450.0070.07019.27
5.4.440.0000.06719.53
5.4.430.0000.07019.45
5.4.420.0070.08019.53
5.4.410.0100.07719.23
5.4.400.0030.08018.85
5.4.390.0000.08719.03
5.4.380.0000.06319.13
5.4.370.0030.04719.16
5.4.360.0070.06319.05
5.4.350.0000.06318.90
5.4.340.0070.08019.09
5.4.320.0030.08018.95
5.4.310.0100.04319.14
5.4.300.0000.04719.05
5.4.290.0000.05719.06
5.4.280.0000.07018.95
5.4.270.0000.08019.09
5.4.260.0030.08019.02
5.4.250.0000.08018.86
5.4.240.0070.07018.94
5.4.230.0070.06319.13
5.4.220.0030.07319.12
5.4.210.0030.07718.90
5.4.200.0000.07319.18
5.4.190.0000.04319.04
5.4.180.0030.08019.13
5.4.170.0030.04719.15
5.4.160.0100.04719.03
5.4.150.0000.08719.02
5.4.140.0100.06316.23
5.4.130.0030.05316.28
5.4.120.0030.06016.26
5.4.110.0030.06316.48
5.4.100.0000.05716.42
5.4.90.0030.07716.30
5.4.80.0000.07316.49
5.4.70.0000.07016.48
5.4.60.0030.07716.41
5.4.50.0030.06716.40
5.4.40.0100.03716.54
5.4.30.0000.03716.48
5.4.20.0030.07316.46
5.4.10.0000.07716.48
5.4.00.0000.07715.65
5.3.290.0100.04714.73
5.3.280.0170.06714.73
5.3.270.0070.06314.61
5.3.260.0070.05714.65
5.3.250.0030.07314.57
5.3.240.0000.08014.60
5.3.230.0030.07714.58
5.3.220.0000.05014.58
5.3.210.0070.05714.68
5.3.200.0000.07314.63
5.3.190.0030.05714.50
5.3.180.0030.08014.68
5.3.170.0070.05714.62
5.3.160.0070.07014.52
5.3.150.0100.06714.62
5.3.140.0000.08014.51
5.3.130.0030.07714.67
5.3.120.0000.07314.60
5.3.110.0070.07014.69
5.3.100.0030.07314.09
5.3.90.0000.07714.05
5.3.80.0030.07714.00
5.3.70.0030.06714.04
5.3.60.0070.06013.89
5.3.50.0000.06013.87
5.3.40.0000.05013.87
5.3.30.0100.05013.96
5.3.20.0000.03713.78
5.3.10.0000.05013.56
5.3.00.0000.03713.74
5.2.170.0000.06311.16
5.2.160.0000.05311.20
5.2.150.0070.05311.19
5.2.140.0030.03011.18
5.2.130.0030.02710.98
5.2.120.0030.02711.10
5.2.110.0030.04711.02
5.2.100.0000.03011.13
5.2.90.0030.02711.19
5.2.80.0000.03011.14
5.2.70.0000.03011.16
5.2.60.0030.02711.11
5.2.50.0030.02711.10
5.2.40.0000.03311.05
5.2.30.0030.02711.11
5.2.20.0030.02710.98
5.2.10.0000.02710.86
5.2.00.0030.02710.86
5.1.60.0030.02310.28
5.1.50.0000.02310.28
5.1.40.0000.03710.28
5.1.30.0030.02710.28
5.1.20.0000.02710.45
5.1.10.0100.01710.28
5.1.00.0030.02310.28
5.0.50.0000.02010.28
5.0.40.0030.01710.28
5.0.30.0000.03010.28
5.0.20.0000.02010.28
5.0.10.0000.02010.28
5.0.00.0000.03710.28
4.4.90.0000.01710.28
4.4.80.0000.02010.28
4.4.70.0000.03010.28
4.4.60.0000.01310.28
4.4.50.0000.01310.28
4.4.40.0000.02310.28
4.4.30.0000.01710.28
4.4.20.0000.01710.28
4.4.10.0000.01710.28
4.4.00.0000.02310.28
4.3.110.0070.01010.28
4.3.100.0000.01710.28
4.3.90.0030.01710.28
4.3.80.0000.03310.28
4.3.70.0000.01710.28
4.3.60.0000.02010.28
4.3.50.0000.01710.28
4.3.40.0000.02310.28
4.3.30.0000.01710.28
4.3.20.0000.01710.28
4.3.10.0000.02010.28
4.3.00.0030.01310.28

preferences:
54.36 ms | 401 KiB | 5 Q