3v4l.org

run code in 300+ PHP versions simultaneously
<?php $regex = '(((?!a).)*)*a\\{'; $test_string = 'AAAAAAAAAAAAAA{AA'; var_dump(preg_match('/'.$regex.'/','WORKED',$test_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)
8.3.60.0120.00316.63
8.3.50.0140.00722.20
8.3.40.0120.00618.70
8.3.30.0070.01019.04
8.3.20.0040.00420.38
8.3.10.0050.00323.68
8.3.00.0030.00519.38
8.2.180.0120.00318.04
8.2.170.0140.00022.96
8.2.160.0130.00720.53
8.2.150.0080.00024.18
8.2.140.0050.00224.66
8.2.130.0040.00426.16
8.2.120.0030.00622.38
8.2.110.0060.00322.32
8.2.100.0090.00317.84
8.2.90.0070.00019.19
8.2.80.0090.00017.97
8.2.70.0040.00417.88
8.2.60.0000.00817.93
8.2.50.0050.00318.07
8.2.40.0040.00418.09
8.2.30.0050.00218.06
8.2.20.0000.00717.80
8.2.10.0040.00417.97
8.2.00.0000.00917.89
8.1.280.0170.00025.92
8.1.270.0060.00323.75
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00623.91
8.1.230.0080.00318.97
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0030.00617.48
8.1.190.0090.00017.53
8.1.180.0050.00318.10
8.1.170.0040.00418.63
8.1.160.0070.00021.95
8.1.150.0040.00418.80
8.1.140.0040.00417.64
8.1.130.0070.00017.71
8.1.120.0040.00417.49
8.1.110.0000.00717.51
8.1.100.0040.00417.47
8.1.90.0040.00417.51
8.1.80.0000.00717.56
8.1.70.0030.00317.47
8.1.60.0030.00617.75
8.1.50.0040.00417.54
8.1.40.0030.00517.59
8.1.30.0000.00817.61
8.1.20.0000.00817.68
8.1.10.0000.00917.62
8.1.00.0050.00217.58
8.0.300.0050.00318.77
8.0.290.0020.00517.14
8.0.280.0000.00818.45
8.0.270.0030.00317.20
8.0.260.0000.00617.28
8.0.250.0030.00317.13
8.0.240.0000.00817.17
8.0.230.0000.00717.11
8.0.220.0000.00717.06
8.0.210.0040.00417.07
8.0.200.0030.00317.00
8.0.190.0000.00716.96
8.0.180.0070.00017.08
8.0.170.0000.00816.93
8.0.160.0030.00317.04
8.0.150.0040.00417.03
8.0.140.0030.00616.98
8.0.130.0060.00013.44
8.0.120.0040.00416.96
8.0.110.0040.00416.93
8.0.100.0000.00717.07
8.0.90.0040.00416.95
8.0.80.0120.00317.09
8.0.70.0040.00416.89
8.0.60.0070.00016.81
8.0.50.0040.00416.91
8.0.30.0070.01217.30
8.0.20.0140.00617.45
8.0.10.0000.00816.88
8.0.00.0080.01316.82
7.4.330.0030.00215.05
7.4.320.0030.00316.66
7.4.300.0040.00416.63
7.4.290.0050.00316.58
7.4.280.0080.00016.62
7.4.270.0000.00716.59
7.4.260.0000.00716.61
7.4.250.0050.00316.60
7.4.240.0000.00716.72
7.4.230.0030.00316.38
7.4.220.0100.01016.75
7.4.210.0040.01216.63
7.4.200.0070.00016.83
7.4.190.0000.00816.75
7.4.160.0140.00316.66
7.4.150.0100.00717.40
7.4.140.0120.00917.86
7.4.130.0080.01116.52
7.4.120.0030.01416.63
7.4.110.0090.00916.61
7.4.100.0110.01016.38
7.4.90.0060.01416.73
7.4.80.0060.01619.39
7.4.70.0060.01516.73
7.4.60.0070.01016.70
7.4.50.0030.00516.63
7.4.40.0090.00622.77
7.4.30.0090.00816.53
7.4.00.0060.00815.18
7.3.330.0030.00313.31
7.3.320.0050.00013.13
7.3.310.0030.00516.48
7.3.300.0070.00016.36
7.3.290.0070.01316.43
7.3.280.0100.00616.40
7.3.270.0060.01217.40
7.3.260.0110.00616.45
7.3.250.0110.00816.50
7.3.240.0110.01116.43
7.3.230.0170.00316.44
7.3.210.0140.00316.43
7.3.200.0110.00719.39
7.3.190.0140.00416.63
7.3.180.0030.01216.66
7.3.170.0090.00616.61
7.3.160.0030.01316.39
7.3.120.0110.00614.84
7.3.110.0100.00714.63
7.3.100.0060.00614.93
7.3.90.0040.01414.86
7.3.80.0000.01515.06
7.3.70.0100.00714.94
7.3.60.0000.01214.94
7.3.50.0000.01914.86
7.3.40.0130.00714.97
7.3.30.0060.00914.89
7.3.20.0060.00816.80
7.3.10.0110.00316.77
7.3.00.0000.01416.64
7.2.330.0100.01016.56
7.2.320.0130.00316.51
7.2.310.0130.00916.55
7.2.300.0030.01316.70
7.2.290.0100.00716.82
7.2.250.0030.01214.85
7.2.240.0090.01315.25
7.2.230.0030.01015.02
7.2.220.0040.01115.08
7.2.210.0070.01015.27
7.2.200.0080.00815.06
7.2.190.0130.00314.80
7.2.180.0040.01414.82
7.2.170.0100.00715.13
7.2.00.0090.00619.56
7.1.330.0070.00716.09
7.1.320.0110.00315.84
7.1.310.0060.01216.05
7.1.300.0060.01016.06
7.1.290.0070.01015.57
7.1.280.0080.01115.75
7.1.270.0070.00715.84
7.1.260.0000.01515.83
7.1.200.0070.00715.98
7.1.100.0050.00318.34
7.1.70.0040.00417.22
7.1.60.0140.01019.33
7.1.50.0000.01417.09
7.1.00.0130.06722.43
7.0.200.9000.01014.78
7.0.140.0030.07321.97
7.0.60.0130.07319.85
7.0.50.0070.08717.84
7.0.40.0100.07019.92
7.0.30.0470.07720.18
7.0.20.0300.07720.33
7.0.10.0100.08320.10
7.0.00.0070.04020.02
5.6.280.0070.07320.77
5.6.210.0100.08720.61
5.6.200.0030.04718.16
5.6.190.0100.08720.60
5.6.180.0000.04320.33
5.6.170.0200.08320.37
5.6.160.0100.04020.54
5.6.150.0030.05718.18
5.6.140.0100.04318.15
5.6.130.0100.07018.21
5.6.120.0100.08020.98
5.6.110.0070.08321.08
5.6.100.0030.04021.13
5.6.90.0100.06721.07
5.6.80.0130.07720.52
5.6.70.4370.03320.39
5.5.350.0130.08320.40
5.5.340.0030.04017.98
5.5.330.0130.06720.43
5.5.320.0000.08720.14
5.5.310.0270.05020.29
5.5.300.0070.07317.92
5.5.290.0130.06317.91
5.5.280.0100.04020.84
5.5.270.0170.08020.85
5.5.260.0100.08320.95
5.5.250.0030.08020.58
5.5.240.0230.06320.02
5.4.450.0870.06019.50
5.4.440.1300.07319.57
5.4.430.1070.07719.46
5.4.420.1000.07319.60
5.4.410.0970.05019.14
5.4.400.0800.05319.23
5.4.390.1170.03719.20
5.4.380.0330.04718.56
5.4.370.0200.06018.61
5.4.360.0270.05018.44
5.4.350.0370.05018.74
5.4.340.0400.06318.73
5.4.320.0070.03912.45
5.4.310.0050.05112.45
5.4.300.0120.04412.45
5.4.290.0070.04912.45
5.4.280.0080.04012.33
5.4.270.0070.04012.33
5.4.260.0050.04412.33
5.4.250.0050.04412.33
5.4.240.0070.03812.33
5.4.230.0100.03912.32
5.4.220.0080.03912.32
5.4.210.0060.04012.32
5.4.200.0080.04212.32
5.4.190.0070.04412.32
5.4.180.0080.03912.32
5.4.170.0130.03212.33
5.4.160.0070.03712.32
5.4.150.0070.03812.32
5.4.140.0090.03612.01
5.4.130.0150.03912.00
5.4.120.0110.04811.95
5.4.110.0080.05911.95
5.4.100.0070.03911.95
5.4.90.0070.04111.95
5.4.80.0080.03911.95
5.4.70.0110.04411.95
5.4.60.0090.04911.95
5.4.50.0080.05011.95
5.4.40.0100.04511.93
5.4.30.0100.04611.93
5.4.20.0060.03811.93
5.4.10.0100.03111.93
5.4.00.0050.04111.42
5.3.290.0040.04312.80
5.3.280.0100.03612.70
5.3.270.0080.04212.72
5.3.260.0070.03912.72
5.3.250.0080.04112.71
5.3.240.0080.04112.72
5.3.230.0080.05012.71
5.3.220.0100.04812.68
5.3.210.0130.05212.68
5.3.200.0080.04912.68
5.3.190.0080.04112.68
5.3.180.0050.03912.68
5.3.170.0080.03512.67
5.3.160.0060.03912.67
5.3.150.0060.04212.67
5.3.140.0110.03412.66
5.3.130.0070.04412.65
5.3.120.0080.03912.65
5.3.110.0060.04312.66
5.3.100.0070.03712.12
5.3.90.0050.04012.08
5.3.80.0060.03712.07
5.3.70.0120.03712.07
5.3.60.0090.05112.06
5.3.50.0120.04712.00
5.3.40.0060.04312.00
5.3.30.0050.03711.94
5.3.20.0080.03411.72
5.3.10.0060.03611.68
5.3.00.0060.04611.67
5.2.170.0060.0429.17
5.2.160.0070.0429.16
5.2.150.0060.0479.17
5.2.140.0050.0389.16
5.2.130.0070.0379.13
5.2.120.0090.0269.13
5.2.110.0060.0369.13
5.2.100.0070.0279.13
5.2.90.0050.0329.13
5.2.80.0070.0309.12
5.2.70.0060.0329.12
5.2.60.0070.0299.07
5.2.50.0060.0309.05
5.2.40.0040.0309.02
5.2.30.0060.0309.00
5.2.20.0070.0308.98
5.2.10.0050.0298.91
5.2.00.0070.0288.77
5.1.60.0060.0258.06
5.1.50.0080.0318.06
5.1.40.0070.0238.04
5.1.30.0060.0248.39
5.1.20.0060.0258.41
5.1.10.0070.0258.13
5.1.00.0050.0258.13
5.0.50.0020.0236.61
5.0.40.0040.0206.47
5.0.30.0020.0346.28
5.0.20.0040.0186.25
5.0.10.0030.0216.23
5.0.00.0030.0366.22
4.4.90.0030.0164.78
4.4.80.0050.0144.76
4.4.70.0020.0234.76
4.4.60.0020.0174.75
4.4.50.0030.0164.77
4.4.40.0050.0234.71
4.4.30.0020.0164.76
4.4.20.0050.0174.84
4.4.10.0040.0164.85
4.4.00.0050.0244.76
4.3.110.0040.0224.67
4.3.100.0070.0154.67
4.3.90.0040.0214.63
4.3.80.0040.0264.58
4.3.70.0030.0164.63
4.3.60.0060.0144.63
4.3.50.0030.0174.62
4.3.40.0060.0314.54
4.3.30.0030.0193.29
4.3.20.0010.0183.27
4.3.10.0000.0183.23
4.3.00.0200.02310.37

preferences:
34.46 ms | 401 KiB | 5 Q