3v4l.org

run code in 300+ PHP versions simultaneously
<?php preg_match('/(?>[A-Za-z])+([A-Za-z])+/', 'FooBar', $m); preg_match('/([A-Za-z])++([A-Za-z])+/', 'FooBar', $m); var_dump($m);

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)
8.3.60.0040.01118.55
8.3.50.0220.00822.84
8.3.40.0060.00918.85
8.3.30.0070.00719.00
8.3.20.0080.00020.39
8.3.10.0000.00823.37
8.3.00.0040.00419.48
8.2.180.0090.00916.50
8.2.170.0150.00022.96
8.2.160.0070.00720.52
8.2.150.0000.00824.18
8.2.140.0000.00724.66
8.2.130.0070.00026.16
8.2.120.0080.00021.29
8.2.110.0030.00622.42
8.2.100.0060.00617.91
8.2.90.0040.00419.05
8.2.80.0060.00317.97
8.2.70.0000.00817.38
8.2.60.0040.00417.80
8.2.50.0000.00818.07
8.2.40.0000.00717.91
8.2.30.0000.00717.85
8.2.20.0070.00017.68
8.2.10.0070.00017.95
8.2.00.0040.00417.75
8.1.280.0060.01025.92
8.1.270.0000.00823.91
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00023.79
8.1.230.0080.00319.14
8.1.220.0040.00417.74
8.1.210.0000.00918.77
8.1.200.0030.00617.35
8.1.190.0030.00517.25
8.1.180.0000.00718.10
8.1.170.0080.00018.66
8.1.160.0000.00821.88
8.1.150.0040.00418.77
8.1.140.0060.00317.51
8.1.130.0070.00017.43
8.1.120.0040.00417.50
8.1.110.0040.00417.49
8.1.100.0000.00717.44
8.1.90.0030.00617.38
8.1.80.0030.00317.42
8.1.70.0040.00417.48
8.1.60.0040.00417.50
8.1.50.0030.00617.48
8.1.40.0030.00617.52
8.1.30.0060.00317.69
8.1.20.0060.00317.65
8.1.10.0050.00317.54
8.1.00.0070.00017.56
8.0.300.0030.00618.77
8.0.290.0000.00716.88
8.0.280.0030.00318.23
8.0.270.0040.00417.20
8.0.260.0040.00416.81
8.0.250.0000.00816.92
8.0.240.0040.00416.93
8.0.230.0000.00816.92
8.0.220.0040.00416.79
8.0.210.0040.00416.90
8.0.200.0000.00616.83
8.0.190.0040.00416.82
8.0.180.0070.00016.98
8.0.170.0000.00816.93
8.0.160.0000.00816.78
8.0.150.0000.00716.93
8.0.140.0000.00816.73
8.0.130.0080.00013.38
8.0.120.0000.00716.75
8.0.110.0000.00716.95
8.0.100.0040.00416.78
8.0.90.0000.00716.82
8.0.80.0080.01116.90
8.0.70.0040.00416.77
8.0.60.0050.00216.78
8.0.50.0040.00416.87
8.0.30.0140.00517.29
8.0.20.0110.00917.40
8.0.10.0040.00417.02
8.0.00.0110.00816.84
7.4.330.0050.00015.00
7.4.320.0030.00316.50
7.4.300.0060.00016.62
7.4.290.0070.00016.63
7.4.280.0000.00816.66
7.4.270.0040.00416.65
7.4.260.0000.00716.64
7.4.250.0020.00516.46
7.4.240.0040.00416.52
7.4.230.0000.00816.42
7.4.220.0100.00716.54
7.4.210.0090.01016.62
7.4.200.0000.00716.65
7.4.160.0100.01016.55
7.4.150.0090.00917.40
7.4.140.0110.00817.86
7.4.130.0100.00916.50
7.4.120.0050.01216.55
7.4.110.0120.00816.64
7.4.100.0030.01316.55
7.4.90.0090.00916.55
7.4.80.0040.01419.39
7.4.70.0070.01016.40
7.4.60.0070.01016.56
7.4.50.0000.00816.36
7.4.40.0070.01116.58
7.4.30.0060.01016.43
7.4.00.0030.01215.00
7.3.330.0050.00313.21
7.3.320.0050.00013.01
7.3.310.0030.00316.21
7.3.300.0070.00016.18
7.3.290.0100.00416.28
7.3.280.0090.00816.29
7.3.270.0120.00617.40
7.3.260.0120.00616.25
7.3.250.0120.00516.48
7.3.240.0070.01116.32
7.3.230.0130.00316.57
7.3.210.0110.00616.66
7.3.200.0060.01019.39
7.3.190.0170.00016.38
7.3.180.0030.01316.54
7.3.170.0090.00616.49
7.3.160.0000.02316.46
7.2.330.0070.01016.65
7.2.320.0030.01816.51
7.2.310.0050.01716.54
7.2.300.0100.00616.50
7.2.290.0120.00616.54
7.2.110.0960.00316.57
7.2.60.0000.01116.64
7.2.00.0000.01719.25
7.1.200.0060.00615.71
7.1.100.0000.01018.18
7.1.70.0030.00717.34
7.1.60.0000.02419.40
7.1.50.0090.01217.06
7.1.00.0030.07322.56
7.0.200.0000.00816.86
7.0.140.0030.07322.19
7.0.60.0100.07319.89
7.0.50.0070.08317.82
7.0.40.0070.04320.06
7.0.30.0270.08020.32
7.0.20.0270.07320.10
7.0.10.0070.08720.03
7.0.00.0100.07020.16
5.6.280.0000.07720.81
5.6.210.0100.03320.74
5.6.200.0030.08318.22
5.6.190.0070.07720.61
5.6.180.0170.04320.57
5.6.170.0230.03320.40
5.6.160.0030.08320.32
5.6.150.0030.04018.22
5.6.140.0070.08018.20
5.6.130.0030.04318.16
5.6.120.0130.08321.07
5.6.110.0000.06721.03
5.6.100.0100.08021.03
5.6.90.0100.07320.94
5.6.80.0100.07720.54
5.5.350.4330.03720.40
5.5.340.0030.04017.92
5.5.330.0100.08020.16
5.5.320.0430.07020.30
5.5.310.0300.08020.29
5.5.300.0100.06717.92
5.5.290.0070.03717.95
5.5.280.0070.04320.76
5.5.270.0070.03720.94
5.5.260.0070.08020.88
5.5.250.0070.04020.77
5.5.240.0170.08020.15
5.4.450.0670.04019.09
5.4.440.0570.04019.48
5.4.430.0530.04019.41
5.4.420.0500.04319.13
5.4.410.0630.04019.44
5.4.400.0170.04718.91
5.4.390.0300.03719.06
5.4.380.0270.06018.57
5.4.370.0400.04718.68
5.4.360.0300.05318.49
5.4.350.0330.05318.72
5.4.340.0370.07018.53
5.4.320.0080.03812.45
5.4.310.0050.03812.45
5.4.300.0030.03912.45
5.4.290.0060.03812.45
5.4.280.0040.03712.35
5.4.270.0060.04212.35
5.4.260.0060.03612.34
5.4.250.0060.03812.34
5.4.240.0050.03512.35
5.4.230.0050.03812.34
5.4.220.0060.03612.34
5.4.210.0060.05112.34
5.4.200.0060.04512.34
5.4.190.0070.03512.34
5.4.180.0060.03812.33
5.4.170.0050.03612.34
5.4.160.0040.04012.34
5.4.150.0080.03412.34
5.4.140.0030.04012.02
5.4.130.0000.04112.01
5.4.120.0060.03511.97
5.4.110.0030.03911.96
5.4.100.0050.03511.96
5.4.90.0060.03611.96
5.4.80.0070.03511.96
5.4.70.0050.03511.96
5.4.60.0070.03211.96
5.4.50.0050.03911.96
5.4.40.0060.03411.95
5.4.30.0060.03611.95
5.4.20.0080.03611.94
5.4.10.0040.03711.95
5.4.00.0040.03711.44
5.3.290.0050.05812.80
5.3.280.0080.04012.71
5.3.270.0070.04612.72
5.3.260.0040.04112.72
5.3.250.0050.03912.72
5.3.240.0080.03512.72
5.3.230.0080.03512.71
5.3.220.0060.03712.68
5.3.210.0050.03912.68
5.3.200.0080.03412.68
5.3.190.0040.03912.68
5.3.180.0060.03612.67
5.3.170.0060.03612.67
5.3.160.0060.03612.68
5.3.150.0080.03512.68
5.3.140.0090.03312.66
5.3.130.0040.04112.66
5.3.120.0070.03812.66
5.3.110.0100.04012.66
5.3.100.0080.04712.12
5.3.90.0150.06312.09
5.3.80.0080.04112.07
5.3.70.0060.04012.07
5.3.60.0080.03912.06
5.3.50.0050.04012.00
5.3.40.0070.03512.00
5.3.30.0070.03411.95
5.3.20.0040.03711.73
5.3.10.0050.03611.70
5.3.00.0030.03911.69
5.2.170.0090.0279.19
5.2.160.0060.0299.19
5.2.150.0070.0409.19
5.2.140.0060.0429.18
5.2.130.0060.0349.15
5.2.120.0060.0389.15
5.2.110.0030.0319.15
5.2.100.0030.0319.15
5.2.90.0050.0309.15
5.2.80.0050.0349.14
5.2.70.0070.0359.14
5.2.60.0040.0319.10
5.2.50.0030.0329.06
5.2.40.0070.0269.05
5.2.30.0040.0309.03
5.2.20.0070.0279.02
5.2.10.0040.0298.93
5.2.00.0040.0298.79
5.1.60.0060.0228.07
5.1.50.0030.0258.07
5.1.40.0000.0288.05
5.1.30.0040.0268.40
5.1.20.0050.0328.42
5.1.10.0070.0258.15
5.1.00.0040.0268.14
5.0.50.0030.0226.63
5.0.40.0020.0246.48
5.0.30.0040.0406.29
5.0.20.0040.0266.27
5.0.10.0060.0266.24
5.0.00.0050.0296.24
4.4.90.0030.0154.78
4.4.80.0030.0154.76
4.4.70.0030.0154.76
4.4.60.0050.0144.75
4.4.50.0020.0174.77
4.4.40.0020.0334.71
4.4.30.0030.0154.75
4.4.20.0030.0154.85
4.4.10.0050.0194.85
4.4.00.0020.0264.76
4.3.110.0010.0184.67
4.3.100.0010.0164.66
4.3.90.0040.0134.63
4.3.80.0020.0324.59
4.3.70.0040.0164.63
4.3.60.0010.0164.63
4.3.50.0050.0134.63
4.3.40.0070.0274.54
4.3.30.0040.0253.29
4.3.20.0040.0203.27
4.3.10.0020.0213.23
4.3.00.0030.01715.98

preferences:
39.37 ms | 401 KiB | 5 Q