3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo preg_match("/((.)\\2).?\\1/", "aaaa");

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)
8.3.60.0030.01016.63
8.3.50.0080.01221.97
8.3.40.0120.00318.83
8.3.30.0130.00318.96
8.3.20.0050.00220.21
8.3.10.0080.00623.49
8.3.00.0040.00419.65
8.2.180.0140.00418.29
8.2.170.0040.01122.96
8.2.160.0110.00420.35
8.2.150.0050.00324.18
8.2.140.0050.00324.66
8.2.130.0000.00919.25
8.2.120.0030.00526.35
8.2.110.0100.00319.33
8.2.100.0090.00617.72
8.2.90.0080.00019.27
8.2.80.0000.01017.97
8.2.70.0040.00417.93
8.2.60.0040.00418.04
8.2.50.0090.00018.10
8.2.40.0060.00319.37
8.2.30.0040.00419.20
8.2.20.0000.00817.76
8.2.10.0040.00418.02
8.2.00.0050.00217.82
8.1.280.0090.00625.92
8.1.270.0130.00620.38
8.1.260.0040.00428.09
8.1.250.0050.00328.09
8.1.240.0060.00323.92
8.1.230.0110.00018.99
8.1.220.0050.00317.74
8.1.210.0050.00318.77
8.1.200.0000.00817.35
8.1.190.0030.00517.41
8.1.180.0060.00318.10
8.1.170.0040.00418.75
8.1.160.0040.00418.88
8.1.150.0040.00418.82
8.1.140.0030.00619.37
8.1.130.0000.00717.57
8.1.120.0030.00317.50
8.1.110.0030.00417.36
8.1.100.0000.01217.39
8.1.90.0040.00417.39
8.1.80.0050.00317.50
8.1.70.0030.00317.29
8.1.60.0030.00517.58
8.1.50.0000.00917.55
8.1.40.0030.00617.53
8.1.30.0040.00417.55
8.1.20.0000.00717.72
8.1.10.0000.00717.57
8.1.00.0040.00417.52
8.0.300.0000.00918.90
8.0.290.0060.00316.88
8.0.280.0000.00718.40
8.0.270.0030.00317.26
8.0.260.0060.00017.19
8.0.250.0000.00717.07
8.0.240.0040.00417.06
8.0.230.0040.00416.98
8.0.220.0050.00316.89
8.0.210.0070.00016.81
8.0.200.0030.00316.85
8.0.190.0030.00816.98
8.0.180.0070.00016.94
8.0.170.0060.00316.81
8.0.160.0040.00416.95
8.0.150.0040.00316.89
8.0.140.0050.00616.85
8.0.130.0000.00613.33
8.0.120.0030.00516.88
8.0.110.0000.00816.82
8.0.100.0040.00416.81
8.0.90.0070.00016.70
8.0.80.0030.01216.93
8.0.70.0000.00716.77
8.0.60.0000.00816.90
8.0.50.0000.00716.91
8.0.30.0100.01017.29
8.0.20.0070.01117.40
8.0.10.0000.00717.01
8.0.00.0110.00616.79
7.4.330.0000.00516.85
7.4.320.0030.00316.59
7.4.300.0060.00316.58
7.4.290.0000.00716.66
7.4.280.0030.00316.57
7.4.270.0040.00516.61
7.4.260.0000.00716.48
7.4.250.0040.00416.63
7.4.240.0040.00416.71
7.4.230.0030.00316.69
7.4.220.0120.00816.85
7.4.210.0060.01016.71
7.4.200.0000.00716.67
7.4.160.0130.00916.53
7.4.150.0090.00917.40
7.4.140.0100.00917.86
7.4.130.0100.00716.46
7.4.120.0120.00816.62
7.4.110.0120.00616.75
7.4.100.0100.00916.38
7.4.90.0070.01016.56
7.4.80.0120.00619.39
7.4.70.0110.00716.48
7.4.60.0030.01316.48
7.4.50.0110.00016.30
7.4.40.0070.01016.52
7.4.30.0160.00016.70
7.4.00.0030.01414.77
7.3.330.0040.00413.25
7.3.320.0030.00313.11
7.3.310.0000.00716.12
7.3.300.0050.00216.28
7.3.290.0040.00416.18
7.3.280.0080.01116.28
7.3.270.0100.00717.40
7.3.260.0200.00316.24
7.3.250.0130.00616.42
7.3.240.0090.01216.32
7.3.230.0030.01316.39
7.3.210.0130.00316.27
7.3.200.0100.00716.68
7.3.190.0060.00916.51
7.3.180.0110.00816.55
7.3.170.0110.00616.33
7.3.160.0040.01216.75
7.2.330.0100.00716.56
7.2.320.0030.01916.58
7.2.310.0150.00616.71
7.2.300.0060.01116.72
7.2.290.0100.00716.69
7.2.60.0060.00917.14
7.2.00.0060.00819.39
7.1.200.0140.00715.89
7.1.100.0110.00417.79
7.1.70.0030.00517.03
7.1.60.0130.01019.44
7.1.50.0230.01334.58
7.1.00.0070.07322.35
7.0.200.0000.00816.73
7.0.60.0070.07319.92
7.0.50.0030.07017.68
7.0.40.0130.07320.04
7.0.30.0530.07020.24
7.0.20.0330.06020.16
7.0.10.0100.08020.14
7.0.00.0100.04720.25
5.6.280.0070.07020.89
5.6.210.0070.08020.46
5.6.200.0030.08018.21
5.6.190.0100.08720.44
5.6.180.0300.05320.41
5.6.170.0370.08320.47
5.6.160.0000.04320.49
5.6.150.0000.07718.18
5.6.140.0000.08018.21
5.6.130.0000.05318.07
5.6.120.0130.03321.11
5.6.110.0130.08020.98
5.6.100.0070.04320.97
5.6.90.0130.08021.11
5.6.80.0070.07320.35
5.5.350.0100.08720.38
5.5.340.0200.04317.95
5.5.330.0030.08020.14
5.5.320.0330.07720.27
5.5.310.0300.07320.17
5.5.300.0000.04317.99
5.5.290.0070.07718.02
5.5.280.0130.05720.73
5.5.270.0070.08320.79
5.5.260.0200.07020.78
5.5.250.0070.08320.53
5.5.240.0230.07020.14

preferences:
55.83 ms | 401 KiB | 5 Q