3v4l.org

run code in 300+ PHP versions simultaneously
<?php ini_set('pcre.jit', 0); var_dump(preg_match("/(T|X)+/", str_repeat('X', 1023), $matches)); var_dump(preg_match("/(T|X)+/", str_repeat('X', 1024), $matches)); ini_set('pcre.jit', 0); var_dump(preg_match("/(T|X)+/", str_repeat('X', 1023), $matches)); var_dump(preg_match("/(T|X)+/", str_repeat('X', 1024), $matches));

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)
8.3.60.0080.01518.80
8.3.50.0070.01122.24
8.3.40.0140.00719.04
8.3.30.0120.00319.09
8.3.20.0040.00420.71
8.3.10.0030.00620.86
8.3.00.0040.00422.36
8.2.180.0100.00618.79
8.2.170.0160.00022.96
8.2.160.0060.00922.62
8.2.150.0060.00324.18
8.2.140.0060.00324.66
8.2.130.0090.00021.57
8.2.120.0080.00026.35
8.2.110.0070.00321.60
8.2.100.0070.00718.36
8.2.90.0060.00319.54
8.2.80.0060.00318.05
8.2.70.0030.00618.05
8.2.60.0060.00318.36
8.2.50.0110.00018.09
8.2.40.0050.00520.87
8.2.30.0000.00919.70
8.2.20.0080.00018.13
8.2.10.0030.00618.41
8.2.00.0030.00618.32
8.1.280.0070.01025.92
8.1.270.0090.00022.82
8.1.260.0030.00628.09
8.1.250.0060.00328.09
8.1.240.0080.00423.13
8.1.230.0090.00318.34
8.1.220.0040.00417.88
8.1.210.0100.00018.77
8.1.200.0000.01117.80
8.1.190.0080.00017.80
8.1.180.0000.00818.10
8.1.170.0030.00619.10
8.1.160.0080.00021.03
8.1.150.0110.00019.25
8.1.140.0040.00419.80
8.1.130.0000.00818.09
8.1.120.0040.00417.82
8.1.110.0050.00317.70
8.1.100.0000.00817.83
8.1.90.0080.00017.69
8.1.80.0000.00817.80
8.1.70.0050.00317.73
8.1.60.0060.00317.99
8.1.50.0030.00717.78
8.1.40.0000.00817.86
8.1.30.0050.00517.91
8.1.20.0000.00817.84
8.1.10.0060.00317.91
8.1.00.0030.00617.86
8.0.300.0040.00418.77
8.0.290.0050.00316.95
8.0.280.0050.00318.64
8.0.270.0040.00417.46
8.0.260.0000.00717.46
8.0.250.0040.00417.04
8.0.240.0030.00517.24
8.0.230.0070.00017.29
8.0.220.0060.00317.05
8.0.210.0080.00017.14
8.0.200.0040.00417.18
8.0.190.0040.00417.03
8.0.180.0030.00717.18
8.0.170.0030.00517.10
8.0.160.0040.00417.19
8.0.150.0000.00816.93
8.0.140.0060.00317.15
8.0.130.0030.00313.65
8.0.120.0030.00717.01
8.0.110.0050.00317.09
8.0.100.0030.00516.96
8.0.90.0030.00616.99
8.0.80.0070.01717.07
8.0.70.0000.00816.94
8.0.60.0040.00417.16
8.0.50.0050.00317.09
8.0.30.0080.01317.23
8.0.20.0130.00917.44
8.0.10.0030.00617.19
8.0.00.0110.01216.98
7.4.330.0030.00317.20
7.4.320.0030.00316.64
7.4.300.0000.00716.59
7.4.290.0040.00416.64
7.4.280.0060.00316.63
7.4.270.0040.00416.75
7.4.260.0040.00416.73
7.4.250.0030.00616.70
7.4.240.0030.00516.75
7.4.230.0000.00716.54
7.4.220.0130.00716.82
7.4.210.0060.00916.69
7.4.200.0000.00816.72
7.4.160.0100.00616.46
7.4.150.0110.01117.40
7.4.140.0140.01117.86
7.4.130.0120.00816.66
7.4.120.0070.01316.72
7.4.110.0100.01016.66
7.4.100.0170.00716.66
7.4.90.0100.01016.75
7.4.80.0120.00919.39
7.4.70.0260.02616.70
7.4.60.0070.01316.76
7.4.50.0070.01316.91
7.4.40.0160.00316.68
7.4.30.0140.01016.52
7.4.00.0070.01015.12
7.3.330.0000.00613.47
7.3.320.0030.00313.46
7.3.310.0040.00416.38
7.3.300.0000.00716.37
7.3.290.0070.01116.47
7.3.280.0050.01216.48
7.3.270.0160.00617.40
7.3.260.0130.00716.86
7.3.250.0100.00916.50
7.3.240.0150.00316.54
7.3.230.0180.00716.39
7.3.210.0080.01316.63
7.3.200.0070.01116.86
7.3.190.0040.01516.66
7.3.180.0180.00816.65
7.3.170.0120.00916.44
7.3.160.0030.01616.53
7.3.120.0030.01714.93
7.3.110.0070.00814.75
7.3.100.0090.00915.25
7.3.90.0070.00715.18
7.3.80.0030.01614.81
7.3.70.0070.00714.79
7.3.60.0060.00915.05
7.3.50.0090.00614.81
7.3.40.0140.00014.95
7.3.30.0040.00815.04
7.3.20.0130.00316.89
7.3.10.0090.00916.91
7.3.00.0040.01416.58
7.2.330.0110.00717.63
7.2.320.0170.00317.27
7.2.310.0080.01117.52
7.2.300.0060.01217.52
7.2.290.0130.01217.31
7.2.250.0100.01016.09
7.2.240.0040.01215.84
7.2.230.0120.00615.95
7.2.220.0100.00316.09
7.2.210.0070.01016.01
7.2.200.0030.01315.84
7.2.190.0040.01515.93
7.2.180.0100.00615.78
7.2.170.0060.00615.93
7.2.160.0030.01015.84
7.2.150.0100.00717.83
7.2.140.0070.01017.94
7.2.130.0000.01117.87
7.2.120.0100.00317.88
7.2.110.0060.00617.96
7.2.100.0140.00317.91
7.2.90.0090.00618.04
7.2.80.0090.00617.80
7.2.70.0040.01517.70
7.2.60.0070.00917.66
7.2.50.0030.01317.82
7.2.40.0070.00817.70
7.2.30.0110.00717.76
7.2.20.0100.00717.62
7.2.10.0100.00317.59
7.2.00.0040.01119.21
7.1.330.0040.01116.61
7.1.320.0000.01216.72
7.1.310.0030.01316.73
7.1.300.0100.00716.68
7.1.290.0040.00816.88
7.1.280.0000.01316.48
7.1.270.0100.00316.60
7.1.260.0070.01016.61
7.1.250.0070.00716.80
7.1.200.0040.00716.81
7.1.100.0140.00318.99
7.1.70.0030.01317.86
7.1.60.0070.02019.19
7.1.50.0180.00717.80
7.1.00.0030.07723.48
7.0.200.0150.00615.86
7.0.60.0170.07322.71
7.0.50.0070.06318.89
7.0.40.0170.06321.39
7.0.30.0230.06321.16
7.0.20.0230.04721.32
7.0.10.0070.05321.00
7.0.00.0230.05021.07
5.6.280.0000.04022.03
5.6.210.0030.08021.69
5.6.200.0030.04019.18
5.6.190.0070.06321.59
5.6.180.0230.06321.43
5.6.170.0170.04321.47
5.6.160.0100.05321.51
5.6.150.0070.04019.14
5.6.140.0070.08719.17
5.6.130.0100.08019.16
5.6.120.0070.09021.95
5.6.110.0070.04022.04
5.6.100.0130.07721.97
5.6.90.0030.09022.04
5.6.80.0070.08021.24
5.5.350.0300.07721.34
5.5.340.0070.08018.92
5.5.330.0030.04021.20
5.5.320.0630.06021.29
5.5.310.0330.03721.30
5.5.300.0000.05018.97
5.5.290.0100.08319.00
5.5.280.0130.04721.70
5.5.270.0170.07021.83
5.5.260.0100.08321.72
5.5.250.0070.04021.57
5.5.240.0030.07721.14

preferences:
54.5 ms | 401 KiB | 5 Q