3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(preg_match('/^(A{1,2}B)+$/',str_repeat('AB',4000)));

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)
8.3.60.0140.00316.75
8.3.50.0110.01022.19
8.3.40.0110.00418.84
8.3.30.0140.00018.70
8.3.20.0040.00420.16
8.3.10.0050.00323.73
8.3.00.0040.00423.79
8.2.180.0040.01118.29
8.2.170.0120.00322.96
8.2.160.0060.00620.52
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0060.00321.25
8.2.120.0080.00026.35
8.2.110.0060.00321.03
8.2.100.0060.00618.03
8.2.90.0000.00819.17
8.2.80.0090.00017.97
8.2.70.0090.00017.63
8.2.60.0000.00917.93
8.2.50.0060.00318.10
8.2.40.0080.00320.53
8.2.30.0030.00620.66
8.2.20.0000.00817.81
8.2.10.0050.00218.07
8.2.00.0000.00718.13
8.1.280.0030.01225.92
8.1.270.0050.00322.20
8.1.260.0040.00428.09
8.1.250.0070.00028.09
8.1.240.0090.00022.33
8.1.230.0080.00417.89
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0040.00417.48
8.1.190.0100.00017.35
8.1.180.0080.00018.10
8.1.170.0060.00318.62
8.1.160.0030.00620.64
8.1.150.0000.00718.91
8.1.140.0000.00817.56
8.1.130.0030.00317.70
8.1.120.0030.00517.45
8.1.110.0000.00717.59
8.1.100.0000.00717.52
8.1.90.0000.00817.59
8.1.80.0000.00817.46
8.1.70.0030.00317.59
8.1.60.0080.00017.68
8.1.50.0030.00717.58
8.1.40.0030.00517.66
8.1.30.0050.00317.75
8.1.20.0030.00617.69
8.1.10.0000.00717.67
8.1.00.0050.00217.46
8.0.300.0000.00818.77
8.0.290.0030.00516.88
8.0.280.0030.00618.48
8.0.270.0050.00316.92
8.0.260.0000.00717.23
8.0.250.0030.00316.98
8.0.240.0040.00416.95
8.0.230.0000.00716.97
8.0.220.0040.00417.01
8.0.210.0040.00416.99
8.0.200.0040.00416.96
8.0.190.0000.00817.08
8.0.180.0040.00416.96
8.0.170.0030.00616.93
8.0.160.0040.00417.08
8.0.150.0070.00016.86
8.0.140.0050.00316.90
8.0.130.0080.00013.41
8.0.120.0070.00016.85
8.0.110.0050.00316.92
8.0.100.0040.00417.05
8.0.90.0030.00316.81
8.0.80.0090.01216.92
8.0.70.0000.00816.91
8.0.60.0000.00716.86
8.0.50.0040.00416.95
8.0.30.0100.01017.06
8.0.20.0140.00417.40
8.0.10.0000.00817.11
8.0.00.0070.01216.99
7.4.330.0030.00216.68
7.4.320.0030.00316.75
7.4.300.0000.00716.76
7.4.290.0070.00016.68
7.4.280.0040.00416.64
7.4.270.0040.00416.66
7.4.260.0000.00716.75
7.4.250.0080.00016.75
7.4.240.0080.00016.70
7.4.230.0070.00016.52
7.4.220.0070.01116.69
7.4.210.0090.00616.71
7.4.200.0030.00516.61
7.4.160.0090.00916.49
7.4.150.0180.00017.40
7.4.140.0120.01217.86
7.4.130.0130.00516.44
7.4.120.0110.00716.60
7.4.110.0170.00016.74
7.4.100.0070.01116.63
7.4.90.0140.00416.78
7.4.80.0140.00319.39
7.4.70.0030.01416.59
7.4.60.0160.00616.62
7.4.50.0120.00316.47
7.4.40.0060.01216.64
7.4.30.0090.00916.81
7.4.00.0120.00514.83
7.3.330.0030.00313.06
7.3.320.0050.00013.20
7.3.310.0050.00316.34
7.3.300.0000.00716.30
7.3.290.0080.00716.36
7.3.280.0090.00916.36
7.3.270.0110.00617.40
7.3.260.0100.00716.83
7.3.250.0100.00716.38
7.3.240.0140.00316.61
7.3.230.0060.01316.50
7.3.210.0130.00316.36
7.3.200.0100.00616.42
7.3.190.0130.00316.50
7.3.180.0040.01216.77
7.3.170.0100.01316.43
7.3.160.0190.00316.81
7.3.120.0070.01114.69
7.3.110.0090.00915.03
7.3.100.0120.00614.76
7.3.90.0100.00714.68
7.3.80.0040.01115.08
7.3.70.0120.00314.80
7.3.60.0060.00614.98
7.3.50.0130.00314.80
7.3.40.0030.01015.02
7.3.30.0030.01314.57
7.3.20.0070.00716.86
7.3.10.0100.00316.77
7.3.00.0030.00616.52
7.2.330.0070.01016.74
7.2.320.0100.01016.81
7.2.310.0170.00016.45
7.2.300.0100.00716.75
7.2.290.0060.01016.60
7.2.250.0070.01015.07
7.2.240.0130.00614.73
7.2.230.0030.01715.11
7.2.220.0030.01014.79
7.2.210.0080.00814.85
7.2.200.0040.01114.86
7.2.190.0080.00815.08
7.2.180.0030.00914.96
7.2.170.0000.01214.90
7.2.60.0000.01216.81
7.2.00.0060.00619.41
7.1.330.0080.00416.12
7.1.320.0040.01116.05
7.1.310.0110.00416.10
7.1.300.0000.01515.96
7.1.290.0040.01115.51
7.1.280.0070.00715.65
7.1.270.0120.00315.98
7.1.260.0030.01416.00
7.1.200.0070.00415.66
7.1.100.0030.00618.36
7.1.70.0000.00717.09
7.1.60.0100.01419.52
7.1.50.0030.01717.06
7.1.00.0070.07322.39
7.0.200.0050.00316.80
7.0.60.0100.03720.08
7.0.50.0100.08317.85
7.0.40.0130.09020.16
7.0.30.0330.08320.05
7.0.20.0300.08320.05
7.0.10.0170.07720.24
7.0.00.0070.07320.04
5.6.280.0030.07024.76
5.6.210.0200.06724.34
5.6.200.0030.07022.08
5.6.190.0070.06024.23
5.6.180.0230.04324.57
5.6.170.0300.07024.23
5.6.160.0100.08324.39
5.6.150.0030.04322.08
5.6.140.0000.04721.98
5.6.130.0030.06022.05
5.6.120.0070.04024.82
5.6.110.0070.07024.89
5.6.100.0030.08324.95
5.6.90.0000.04724.90
5.6.80.0100.06324.25
5.5.350.4170.03724.24
5.5.340.0030.08321.92
5.5.330.0100.08324.04
5.5.320.0200.05324.16
5.5.310.0300.04024.02
5.5.300.0130.06321.78
5.5.290.0100.07021.76
5.5.280.0030.09324.67
5.5.270.0000.09724.67
5.5.260.0170.07324.74
5.5.250.0170.07024.53
5.5.240.0230.07723.98

preferences:
57.53 ms | 401 KiB | 5 Q