3v4l.org

run code in 300+ PHP versions simultaneously
<?php ini_set('pcre.jit', 1); 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)
8.3.60.0090.00618.43
8.3.50.0130.00521.93
8.3.40.0110.01118.78
8.3.30.0070.00718.83
8.3.20.0080.00020.34
8.3.10.0060.00320.65
8.3.00.0040.00421.73
8.2.180.0120.00416.50
8.2.170.0150.00022.96
8.2.160.0070.00722.34
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0070.00019.39
8.2.120.0040.00426.35
8.2.110.0110.00021.23
8.2.100.0040.00717.80
8.2.90.0040.00418.93
8.2.80.0000.00817.97
8.2.70.0060.00317.63
8.2.60.0040.00417.80
8.2.50.0060.00318.09
8.2.40.0050.00220.51
8.2.30.0000.00719.27
8.2.20.0000.00717.91
8.2.10.0000.00718.07
8.2.00.0040.00418.07
8.1.280.0120.00325.92
8.1.270.0030.00622.32
8.1.260.0080.00028.09
8.1.250.0080.00328.09
8.1.240.0090.00022.62
8.1.230.0080.00317.83
8.1.220.0000.00817.78
8.1.210.0060.00318.77
8.1.200.0000.01017.48
8.1.190.0040.00417.35
8.1.180.0000.00818.10
8.1.170.0050.00318.76
8.1.160.0040.00420.71
8.1.150.0000.00918.84
8.1.140.0090.00019.52
8.1.130.0020.00517.50
8.1.120.0030.00317.55
8.1.110.0000.00817.52
8.1.100.0040.00417.41
8.1.90.0080.00017.38
8.1.80.0070.00017.41
8.1.70.0000.00717.54
8.1.60.0080.00017.66
8.1.50.0000.00817.48
8.1.40.0000.00817.43
8.1.30.0000.00817.73
8.1.20.0090.00017.54
8.1.10.0000.00817.63
8.1.00.0080.00017.49
8.0.300.0000.00718.77
8.0.290.0040.00416.61
8.0.280.0030.00518.51
8.0.270.0040.00417.20
8.0.260.0050.00317.18
8.0.250.0030.00317.05
8.0.240.0040.00416.97
8.0.230.0030.00317.04
8.0.220.0050.00316.86
8.0.210.0040.00416.93
8.0.200.0030.00616.97
8.0.190.0040.00716.92
8.0.180.0110.00016.95
8.0.170.0040.00416.91
8.0.160.0040.00416.93
8.0.150.0030.00317.00
8.0.140.0040.00416.96
8.0.130.0000.00713.36
8.0.120.0000.00816.80
8.0.110.0000.00716.79
8.0.100.0040.00417.02
8.0.90.0040.00416.85
8.0.80.0060.01016.94
8.0.70.0080.00016.81
8.0.60.0040.00416.83
8.0.50.0070.00016.89
8.0.30.0050.01317.22
8.0.20.0070.01217.41
8.0.10.0040.00417.12
8.0.00.0120.00816.71
7.4.330.0000.00516.80
7.4.320.0060.00016.66
7.4.300.0050.00316.73
7.4.290.0050.00316.66
7.4.280.0000.00816.74
7.4.270.0030.00316.63
7.4.260.0040.00416.52
7.4.250.0080.00016.72
7.4.240.0070.00016.59
7.4.230.0030.00316.71
7.4.220.0060.01316.85
7.4.210.0030.01216.78
7.4.200.0050.00316.76
7.4.160.0110.01116.70
7.4.150.0090.00917.40
7.4.140.0070.01317.86
7.4.130.0090.01016.64
7.4.120.0050.01216.66
7.4.110.0130.00316.79
7.4.100.0090.01216.61
7.4.90.0070.01116.55
7.4.80.0030.01319.39
7.4.70.0100.00716.59
7.4.60.0060.01216.50
7.4.50.0060.00816.67
7.4.40.0170.00016.38
7.4.30.0110.01116.60
7.4.00.0030.01414.83
7.3.330.0000.00513.10
7.3.320.0030.00313.26
7.3.310.0000.00716.47
7.3.300.0000.00816.36
7.3.290.0080.00916.29
7.3.280.0070.01116.32
7.3.270.0090.00917.40
7.3.260.0070.01316.73
7.3.250.0100.00716.38
7.3.240.0110.00616.63
7.3.230.0180.00616.59
7.3.210.0090.00916.43
7.3.200.0100.00716.50
7.3.190.0090.00616.34
7.3.180.0130.00316.27
7.3.170.0160.00316.52
7.3.160.0120.00616.36
7.2.330.0080.00816.42
7.2.320.0070.01116.55
7.2.310.0100.01316.52
7.2.300.0140.00316.58
7.2.290.0100.00716.57
7.2.60.0110.00416.84
7.2.00.0000.01219.62
7.1.200.0030.01015.81
7.1.100.0120.00417.96
7.1.70.0000.00817.33
7.1.60.0100.01619.19
7.1.50.0070.01417.19
7.1.00.0070.07322.48
7.0.200.0170.00314.81
7.0.100.0030.06720.02
7.0.90.0070.08320.15
7.0.80.0200.04319.92
7.0.70.0070.08020.03
7.0.60.0200.07019.98
7.0.50.0270.08720.16
7.0.40.0100.08320.13
7.0.30.0070.07720.05
7.0.20.0170.07020.08
7.0.10.0130.08020.09
7.0.00.0170.04020.14
5.6.280.0070.03721.80
5.6.250.0030.08021.70
5.6.240.0030.08321.63
5.6.230.0130.06721.61
5.6.220.0300.05321.48
5.6.210.0070.05721.61
5.6.200.0070.08721.96
5.6.190.0130.08322.01
5.6.180.0130.07722.02
5.6.170.0100.07022.09
5.6.160.0100.08022.00
5.6.150.0070.05022.12
5.6.140.0170.08321.91
5.6.130.0030.08722.00
5.6.120.0130.07722.02
5.6.110.0070.08721.97
5.6.100.0100.08321.99
5.6.90.0030.06322.02
5.6.80.0100.09321.38
5.6.70.0100.08021.30
5.6.60.0170.06021.35
5.6.50.0030.09021.38
5.6.40.0070.07321.49
5.6.30.0170.06321.46
5.6.20.0070.08321.22
5.6.10.0070.05021.35
5.6.00.0100.04321.41
5.5.380.0100.06321.34
5.5.370.0130.07321.44
5.5.360.0100.06021.32
5.5.350.0170.06721.41
5.5.340.0100.07321.74
5.5.330.0100.08021.73
5.5.320.0200.04721.84
5.5.310.0070.08721.69
5.5.300.0130.07321.73
5.5.290.0170.07321.76
5.5.280.0170.07321.60
5.5.270.0130.07321.86
5.5.260.0170.07321.84
5.5.250.0070.07721.55
5.5.240.0100.04721.23
5.5.230.0100.03321.23
5.5.220.0070.08021.10
5.5.210.0030.06721.22
5.5.200.0070.04721.20
5.5.190.0100.08321.22
5.5.180.0130.07721.19
5.5.160.0070.06021.08
5.5.150.0000.06721.22
5.5.140.0200.03321.22
5.5.130.0100.07321.14
5.5.120.0100.07321.14
5.5.110.0070.04721.04
5.5.100.0030.06021.08
5.5.90.0070.07321.07
5.5.80.0070.07321.02
5.5.70.0000.08720.98
5.5.60.0030.08321.00
5.5.50.0100.07721.10
5.5.40.0100.06321.04
5.5.30.0170.06321.01
5.5.20.0170.07020.95
5.5.10.0100.07020.93
5.5.00.0100.06720.97

preferences:
87.46 ms | 401 KiB | 5 Q