3v4l.org

run code in 300+ PHP versions simultaneously
<?php $pattern = '/\b' . preg_quote('Ro\(M\)') . '\b/ui'; $sample = 'Ro(M)'; echo (int)preg_match( $pattern, $sample, $matches).PHP_EOL; print_r($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)
8.3.60.0070.01018.55
8.3.50.0120.00722.12
8.3.40.0060.00918.76
8.3.30.0040.01119.27
8.3.20.0000.00720.30
8.3.10.0080.00020.66
8.3.00.0030.00619.63
8.2.180.0110.00716.63
8.2.170.0110.00422.96
8.2.160.0100.00720.53
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0000.00726.16
8.2.120.0040.00422.35
8.2.110.0030.00622.27
8.2.100.0040.00717.97
8.2.90.0000.00819.19
8.2.80.0060.00317.97
8.2.70.0060.00317.63
8.2.60.0030.00518.04
8.2.50.0000.00918.07
8.2.40.0060.00318.34
8.2.30.0060.00319.51
8.2.20.0040.00417.86
8.2.10.0030.00618.21
8.2.00.0000.00817.88
8.1.280.0100.01325.92
8.1.270.0030.00523.91
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0030.00623.70
8.1.230.0000.01119.17
8.1.220.0030.00617.74
8.1.210.0030.00618.77
8.1.200.0000.01017.48
8.1.190.0080.00017.35
8.1.180.0030.00518.10
8.1.170.0000.00918.77
8.1.160.0040.00422.08
8.1.150.0020.00519.02
8.1.140.0000.00717.77
8.1.130.0000.00817.97
8.1.120.0000.00717.51
8.1.110.0040.00417.63
8.1.100.0080.00017.63
8.1.90.0000.00717.57
8.1.80.0000.00917.64
8.1.70.0000.00717.49
8.1.60.0050.00517.72
8.1.50.0030.00617.71
8.1.40.0040.00417.65
8.1.30.0050.00317.88
8.1.20.0060.00317.70
8.1.10.0040.00417.58
8.1.00.0000.00717.59
8.0.300.0040.00419.15
8.0.290.0040.00417.00
8.0.280.0030.00318.38
8.0.270.0070.00017.32
8.0.260.0030.00317.32
8.0.250.0000.00717.07
8.0.240.0040.00417.05
8.0.230.0030.00317.16
8.0.220.0040.00217.05
8.0.210.0000.00717.13
8.0.200.0000.00717.00
8.0.190.0000.00717.14
8.0.180.0000.00817.15
8.0.170.0000.00917.00
8.0.160.0040.00417.12
8.0.150.0040.00417.05
8.0.140.0040.00417.04
8.0.130.0000.00613.46
8.0.120.0050.00317.16
8.0.110.0030.00317.05
8.0.100.0040.00416.99
8.0.90.0080.00016.98
8.0.80.0090.00617.11
8.0.70.0050.00217.12
8.0.60.0040.00417.14
8.0.50.0040.00416.97
8.0.30.0120.01017.34
8.0.20.0110.00817.40
8.0.10.0040.00417.00
8.0.00.0070.01016.94
7.4.330.0030.00315.00
7.4.320.0000.00716.75
7.4.300.0030.00316.75
7.4.290.0000.00716.70
7.4.280.0000.00716.68
7.4.270.0000.00716.80
7.4.260.0040.00416.70
7.4.250.0000.00716.88
7.4.240.0010.00616.86
7.4.230.0030.00316.66
7.4.220.0090.00916.94
7.4.210.0100.01016.96
7.4.200.0000.00716.57
7.4.160.0140.01116.87
7.4.150.0150.00617.40
7.4.140.0090.00817.86
7.4.130.0110.00716.78
7.4.120.0140.00516.64
7.4.110.0100.00716.73
7.4.100.0140.00516.74
7.4.90.0130.01017.04
7.4.80.0060.01219.39
7.4.70.0060.01216.76
7.4.60.0080.00816.72
7.4.50.0050.00316.46
7.4.40.0080.00816.67
7.4.30.0110.00616.59
7.4.00.0150.00015.15
7.3.330.0030.00213.16
7.3.320.0030.00313.26
7.3.310.0000.00716.34
7.3.300.0070.00016.40
7.3.290.0040.01116.31
7.3.280.0060.01216.39
7.3.270.0080.01217.40
7.3.260.0110.00816.51
7.3.250.0060.01216.54
7.3.240.0070.01416.44
7.3.230.0140.00316.70
7.3.210.0120.00616.41
7.3.200.0090.01219.39
7.3.190.0110.00816.62
7.3.180.0060.00916.39
7.3.170.0000.01616.52
7.3.160.0130.00316.32
7.3.120.0080.00814.96
7.3.110.0150.00414.95
7.3.100.0040.00714.95
7.3.90.0040.00714.80
7.3.80.0060.00614.98
7.3.70.0030.00514.72
7.3.60.0040.00714.66
7.3.50.0070.00414.98
7.3.40.0070.00315.03
7.3.30.0100.00315.00
7.3.20.0030.00916.90
7.3.10.0040.00416.71
7.3.00.0060.00616.60
7.2.330.0070.01016.77
7.2.320.0090.00916.73
7.2.310.0120.00916.71
7.2.300.0130.00316.75
7.2.290.0090.01416.73
7.2.250.0040.01015.29
7.2.240.0030.01515.25
7.2.230.0030.01015.43
7.2.220.0060.00615.22
7.2.210.0030.00715.24
7.2.200.0040.01115.34
7.2.190.0000.00915.16
7.2.180.0090.00615.02
7.2.170.0070.01015.25
7.2.160.0090.00615.09
7.2.150.0090.00317.04
7.2.140.0060.00617.10
7.2.130.0000.01117.11
7.2.120.0100.00317.06
7.2.110.0030.00617.12
7.2.100.0000.01217.15
7.2.90.0030.01017.18
7.2.80.0080.00617.08
7.2.70.0000.01617.28
7.2.60.0080.00617.05
7.2.50.0000.01517.17
7.2.40.0000.01316.93
7.2.30.0000.01117.02
7.2.20.0030.00616.99
7.2.10.0040.00817.09
7.2.00.0080.00818.27
7.1.330.0070.01015.90
7.1.320.0090.00616.11
7.1.310.0040.00416.08
7.1.300.0040.00715.89
7.1.290.0060.00616.00
7.1.280.0030.01015.60
7.1.270.0040.00415.88
7.1.260.0090.00616.05
7.1.250.0040.00815.89
7.1.200.0170.00316.03
7.1.100.0060.01217.95
7.1.70.0000.00716.95
7.1.60.0160.00619.12
7.1.50.0070.01017.14
7.1.00.0070.07022.41
7.0.200.0030.00616.72
7.0.140.0070.07022.09
7.0.60.0130.07019.93
7.0.50.0170.07017.80
7.0.40.0000.04720.27
7.0.30.0270.06020.32
7.0.20.0230.04320.14
7.0.10.0070.04020.18
7.0.00.0000.06720.05
5.6.280.0070.07021.09
5.6.210.0100.07720.74
5.6.200.0030.04318.17
5.6.190.0100.04720.27
5.6.180.0200.06320.29
5.6.170.0230.03320.41
5.6.160.0100.07020.54
5.6.150.0030.05318.18
5.6.140.0030.04018.12
5.6.130.0130.07718.15
5.6.120.0130.03021.14
5.6.110.0030.04021.07
5.6.100.0070.05720.97
5.6.90.0130.03720.87
5.6.80.0170.04320.43
5.6.70.4400.03720.37
5.5.350.0330.06720.49
5.5.340.0170.03717.89
5.5.330.0030.04720.43
5.5.320.0300.07020.20
5.5.310.0300.07020.28
5.5.300.0100.03317.98
5.5.290.0030.08717.98
5.5.280.0030.06320.68
5.5.270.0030.09020.76
5.5.260.0170.07020.91
5.5.250.0000.04320.58
5.5.240.0300.07720.22
5.4.450.0330.04719.45
5.4.440.0800.03019.45
5.4.430.0330.05019.45
5.4.420.0600.04019.45
5.4.410.0130.03719.45
5.4.400.0370.03719.22
5.4.390.0170.04018.80
5.4.380.0430.05018.65
5.4.370.0270.05318.71
5.4.360.0200.07018.44
5.4.350.0330.06018.53
5.4.340.0470.06718.72
5.4.320.0070.03612.45
5.4.310.0060.03912.45
5.4.300.0060.03712.45
5.4.290.0050.04012.45
5.4.280.0040.03912.34
5.4.270.0030.03912.35
5.4.260.0050.04012.34
5.4.250.0050.04312.34
5.4.240.0120.04212.34
5.4.230.0090.03912.34
5.4.220.0060.04012.34
5.4.210.0050.03712.34
5.4.200.0070.04012.34
5.4.190.0090.03512.33
5.4.180.0070.03812.33
5.4.170.0090.03712.35
5.4.160.0060.03512.34
5.4.150.0060.03712.34
5.4.140.0100.04912.02
5.4.130.0080.03412.01
5.4.120.0070.03611.96
5.4.110.0120.02911.96
5.4.100.0090.03411.96
5.4.90.0070.03811.97
5.4.80.0050.03711.96
5.4.70.0040.03611.96
5.4.60.0060.03411.96
5.4.50.0040.03811.96
5.4.40.0050.03511.95
5.4.30.0080.03411.95
5.4.20.0040.04111.94
5.4.10.0060.03411.95
5.4.00.0070.03511.43
5.3.290.0050.04212.80
5.3.280.0070.03812.70
5.3.270.0100.03512.72
5.3.260.0040.04112.72
5.3.250.0100.03812.72
5.3.240.0050.03812.72
5.3.230.0050.03812.71
5.3.220.0040.03812.68
5.3.210.0060.03912.68
5.3.200.0060.03612.68
5.3.190.0050.03812.68
5.3.180.0070.04112.68
5.3.170.0060.03512.66
5.3.160.0040.03812.67
5.3.150.0090.03612.67
5.3.140.0080.03812.66
5.3.130.0030.04112.66
5.3.120.0060.04012.66
5.3.110.0080.03712.66
5.3.100.0060.03712.12
5.3.90.0090.03312.08
5.3.80.0100.03212.07
5.3.70.0050.03712.08
5.3.60.0060.03612.06
5.3.50.0050.03712.00
5.3.40.0060.03712.00
5.3.30.0050.03711.95
5.3.20.0080.03311.73
5.3.10.0050.03811.70
5.3.00.0080.04411.69
5.2.170.0070.0319.19
5.2.160.0050.0329.19
5.2.150.0070.0289.19
5.2.140.0040.0399.18
5.2.130.0040.0309.16
5.2.120.0030.0309.15
5.2.110.0060.0289.15
5.2.100.0060.0279.14
5.2.90.0040.0299.15
5.2.80.0050.0339.14
5.2.70.0020.0329.14
5.2.60.0080.0269.10
5.2.50.0080.0299.07
5.2.40.0050.0309.05
5.2.30.0060.0279.02
5.2.20.0040.0299.01
5.2.10.0050.0278.93
5.2.00.0060.0278.79
5.1.60.0070.0218.08
5.1.50.0080.0218.07
5.1.40.0050.0238.05
5.1.30.0050.0258.40
5.1.20.0050.0258.43
5.1.10.0070.0238.15
5.1.00.0050.0258.15
5.0.50.0030.0216.63
5.0.40.0060.0216.49
5.0.30.0060.0356.30
5.0.20.0020.0206.27
5.0.10.0050.0286.25
5.0.00.0060.0276.24
4.4.90.0020.0164.78
4.4.80.0040.0204.75
4.4.70.0020.0174.75
4.4.60.0030.0164.76
4.4.50.0020.0224.77
4.4.40.0030.0284.71
4.4.30.0010.0174.76
4.4.20.0050.0204.84
4.4.10.0030.0154.85
4.4.00.0030.0244.76
4.3.110.0030.0154.67
4.3.100.0040.0134.66
4.3.90.0030.0154.63
4.3.80.0050.0224.58
4.3.70.0030.0154.63
4.3.60.0020.0164.63
4.3.50.0030.0154.63
4.3.40.0030.0244.54
4.3.30.0010.0173.29
4.3.20.0020.0163.27
4.3.10.0020.0153.23
4.3.00.0000.01716.73

preferences:
36.18 ms | 401 KiB | 5 Q