3v4l.org

run code in 300+ PHP versions simultaneously
<?php $pattern = '/\bRo(M)\b/u'; $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)
8.3.60.0070.00718.80
8.3.50.0280.01222.13
8.3.40.0140.00719.12
8.3.30.0070.01319.22
8.3.20.0040.00420.16
8.3.10.0040.00420.73
8.3.00.0040.00419.50
8.2.180.0040.01116.63
8.2.170.0120.00322.96
8.2.160.0040.01220.38
8.2.150.0040.00424.18
8.2.140.0000.00724.66
8.2.130.0050.00226.16
8.2.120.0060.00322.02
8.2.110.0060.00320.35
8.2.100.0040.00819.19
8.2.90.0040.00419.17
8.2.80.0040.00417.97
8.2.70.0000.00817.63
8.2.60.0090.00318.04
8.2.50.0040.00418.07
8.2.40.0060.00318.14
8.2.30.0030.00519.39
8.2.20.0000.00717.89
8.2.10.0000.00818.06
8.2.00.0040.00417.93
8.1.280.0110.00425.92
8.1.270.0040.00424.02
8.1.260.0050.00226.35
8.1.250.0000.00828.09
8.1.240.0040.00423.68
8.1.230.0040.00819.16
8.1.220.0000.00717.75
8.1.210.0030.00518.77
8.1.200.0030.00617.48
8.1.190.0030.00517.38
8.1.180.0000.00818.10
8.1.170.0030.00518.75
8.1.160.0030.00522.07
8.1.150.0040.00418.97
8.1.140.0030.00617.61
8.1.130.0030.00317.80
8.1.120.0000.00717.56
8.1.110.0000.00717.51
8.1.100.0030.00317.61
8.1.90.0030.00317.46
8.1.80.0080.00017.57
8.1.70.0020.00517.54
8.1.60.0030.00617.69
8.1.50.0040.00417.64
8.1.40.0050.00317.64
8.1.30.0000.00917.79
8.1.20.0000.00817.68
8.1.10.0000.00717.57
8.1.00.0000.00817.55
8.0.300.0080.00018.77
8.0.290.0000.00716.88
8.0.280.0030.00318.39
8.0.270.0080.00017.17
8.0.260.0000.00817.12
8.0.250.0000.00717.11
8.0.240.0000.00817.15
8.0.230.0070.00017.13
8.0.220.0030.00317.16
8.0.210.0030.00317.09
8.0.200.0000.00717.07
8.0.190.0090.00017.17
8.0.180.0040.00417.15
8.0.170.0000.00816.98
8.0.160.0000.00717.07
8.0.150.0070.00017.05
8.0.140.0000.00816.93
8.0.130.0000.00513.52
8.0.120.0040.00417.02
8.0.110.0000.00717.17
8.0.100.0000.00717.08
8.0.90.0050.00216.96
8.0.80.0040.01217.14
8.0.70.0070.00017.19
8.0.60.0040.00416.96
8.0.50.0000.00717.04
8.0.30.0080.01117.49
8.0.20.0060.01217.40
8.0.10.0020.00517.23
8.0.00.0100.00917.02
7.4.330.0070.00015.00
7.4.320.0000.00616.91
7.4.300.0050.00216.62
7.4.290.0030.00316.90
7.4.280.0000.00716.80
7.4.270.0030.00316.73
7.4.260.0000.00716.86
7.4.250.0030.00616.77
7.4.240.0020.00516.81
7.4.230.0020.00516.56
7.4.220.0180.00016.80
7.4.210.0090.00616.96
7.4.200.0030.00516.89
7.4.160.0060.00916.96
7.4.150.0060.01217.40
7.4.140.0090.00817.86
7.4.130.0070.01016.62
7.4.120.0080.01016.75
7.4.110.0090.00916.73
7.4.100.0070.01016.59
7.4.90.0100.01316.76
7.4.80.0090.01219.39
7.4.70.0000.01716.66
7.4.60.0030.01316.88
7.4.50.0080.00016.66
7.4.40.0130.00516.76
7.4.30.0100.00716.66
7.4.00.0070.01014.76
7.3.330.0000.00613.22
7.3.320.0000.00513.24
7.3.310.0000.00716.35
7.3.300.0000.00716.25
7.3.290.0030.01716.46
7.3.280.0120.00616.41
7.3.270.0090.00917.40
7.3.260.0120.00616.62
7.3.250.0120.01116.48
7.3.240.0140.00316.41
7.3.230.0200.00316.62
7.3.210.0140.00416.43
7.3.200.0120.01019.39
7.3.190.0160.00616.69
7.3.180.0080.00816.34
7.3.170.0090.00616.64
7.3.160.0090.00616.29
7.3.120.0100.00715.13
7.3.110.0060.00914.78
7.3.100.0030.00714.61
7.3.90.0090.00615.05
7.3.80.0000.01414.58
7.3.70.0060.00914.75
7.3.60.0030.00715.02
7.3.50.0040.00814.77
7.3.40.0040.00814.93
7.3.30.0040.01114.66
7.3.20.0060.00616.87
7.3.10.0110.00016.76
7.3.00.0030.01016.83
7.2.330.0100.00716.78
7.2.320.0100.00716.70
7.2.310.0100.00716.76
7.2.300.0070.01016.80
7.2.290.0100.00616.88
7.2.250.0080.00815.25
7.2.240.0080.01215.33
7.2.230.0030.00615.10
7.2.220.0040.01115.18
7.2.210.0030.01314.93
7.2.200.0060.00915.29
7.2.190.0000.01215.16
7.2.180.0080.00515.15
7.2.170.0000.01515.08
7.2.00.0090.00619.18
7.1.330.0030.01115.89
7.1.320.0030.00916.04
7.1.310.0080.00615.51
7.1.300.0030.00915.94
7.1.290.0100.00316.09
7.1.280.0040.00415.94
7.1.270.0030.00716.00
7.1.260.0040.00815.89
7.1.100.0000.01117.89
7.1.70.0040.00716.94
7.1.60.0070.02019.12
7.1.50.0030.01717.02
7.1.00.0070.07322.45
7.0.200.0030.00516.57
7.0.140.0100.06722.04
7.0.60.0030.09019.82
7.0.50.0030.08317.81
7.0.40.0100.09019.98
7.0.30.0300.03020.20
7.0.20.0200.08020.23
7.0.10.0070.09320.01
7.0.00.0100.08320.31
5.6.280.0030.07320.81
5.6.210.0030.06020.70
5.6.200.0130.07718.18
5.6.190.0070.05020.61
5.6.180.0400.04720.43
5.6.170.0170.04720.41
5.6.160.0070.05020.31
5.6.150.0100.08018.12
5.6.140.0030.07318.09
5.6.130.0030.06718.09
5.6.120.0070.04720.93
5.6.110.0100.04020.99
5.6.100.0030.08721.03
5.6.90.0100.08320.89
5.6.80.0130.03720.37
5.5.350.0270.07020.40
5.5.340.0070.08317.92
5.5.330.0100.08020.12
5.5.320.0070.05020.34
5.5.310.0300.07320.30
5.5.300.0100.08018.01
5.5.290.0100.03317.86
5.5.280.0070.08720.76
5.5.270.0100.05020.93
5.5.260.0000.04320.75
5.5.250.0200.06720.65
5.5.240.0100.08020.25
5.4.450.0230.03719.58
5.4.440.0270.04019.45
5.4.430.0370.03719.45
5.4.420.0130.05019.45
5.4.410.0200.04319.45
5.4.400.0300.04319.23
5.4.390.0330.04019.06
5.4.380.0300.05318.77
5.4.370.0330.07718.50
5.4.360.0370.05718.50
5.4.350.0430.06018.59
5.4.340.0470.05018.61
5.4.320.0050.03612.45
5.4.310.0050.03812.45
5.4.300.0040.03912.45
5.4.290.0050.03712.45
5.4.280.0080.04112.35
5.4.270.0060.04212.35
5.4.260.0100.03712.34
5.4.250.0040.03712.35
5.4.240.0040.04212.35
5.4.230.0060.04012.34
5.4.220.0070.03512.34
5.4.210.0060.03312.34
5.4.200.0030.03912.34
5.4.190.0030.03612.33
5.4.180.0050.03512.33
5.4.170.0070.03512.34
5.4.160.0040.03612.34
5.4.150.0020.03812.34
5.4.140.0050.04412.02
5.4.130.0050.03912.01
5.4.120.0040.03611.97
5.4.110.0040.03511.96
5.4.100.0070.03311.96
5.4.90.0040.03811.96
5.4.80.0040.03711.96
5.4.70.0080.03611.96
5.4.60.0080.03511.96
5.4.50.0040.04411.96
5.4.40.0060.03311.95
5.4.30.0030.04111.95
5.4.20.0060.03611.95
5.4.10.0080.03711.95
5.4.00.0030.04211.44
5.3.290.0070.04212.80
5.3.280.0060.03912.71
5.3.270.0060.03912.73
5.3.260.0060.04612.72
5.3.250.0070.03612.72
5.3.240.0070.03612.72
5.3.230.0060.03812.71
5.3.220.0080.03512.68
5.3.210.0060.03812.68
5.3.200.0080.03312.68
5.3.190.0070.03612.68
5.3.180.0050.03812.67
5.3.170.0040.03812.67
5.3.160.0060.03612.67
5.3.150.0070.03512.67
5.3.140.0070.03512.66
5.3.130.0090.03512.66
5.3.120.0070.04312.66
5.3.110.0120.03812.66
5.3.100.0070.03912.11
5.3.90.0040.03712.08
5.3.80.0040.03712.07
5.3.70.0040.03712.07
5.3.60.0080.03912.07
5.3.50.0100.03612.00
5.3.40.0070.03512.00
5.3.30.0060.03911.95
5.3.20.0050.03911.73
5.3.10.0070.03811.70
5.3.00.0030.04111.69
5.2.170.0060.0289.19
5.2.160.0030.0309.19
5.2.150.0070.0279.19
5.2.140.0050.0309.19
5.2.130.0050.0299.15
5.2.120.0070.0269.15
5.2.110.0030.0319.16
5.2.100.0050.0329.15
5.2.90.0060.0279.15
5.2.80.0040.0309.14
5.2.70.0040.0319.14
5.2.60.0040.0309.10
5.2.50.0050.0319.07
5.2.40.0050.0369.05
5.2.30.0080.0339.03
5.2.20.0020.0359.01
5.2.10.0040.0318.93
5.2.00.0030.0328.79
5.1.60.0040.0248.08
5.1.50.0030.0268.07
5.1.40.0030.0248.05
5.1.30.0030.0268.41
5.1.20.0020.0288.43
5.1.10.0040.0288.15
5.1.00.0020.0278.15
5.0.50.0030.0216.63
5.0.40.0030.0196.48
5.0.30.0020.0316.30
5.0.20.0010.0216.27
5.0.10.0030.0196.25
5.0.00.0030.0316.23
4.4.90.0030.0154.78
4.4.80.0020.0164.76
4.4.70.0050.0134.75
4.4.60.0020.0164.75
4.4.50.0020.0164.77
4.4.40.0030.0244.70
4.4.30.0040.0144.76
4.4.20.0020.0164.85
4.4.10.0020.0164.85
4.4.00.0010.0264.76
4.3.110.0030.0154.67
4.3.100.0040.0134.67
4.3.90.0030.0144.63
4.3.80.0020.0324.58
4.3.70.0040.0134.63
4.3.60.0030.0144.63
4.3.50.0010.0174.63
4.3.40.0030.0244.54
4.3.30.0020.0153.30
4.3.20.0040.0143.27
4.3.10.0000.0173.23
4.3.00.0070.01016.73

preferences:
51.94 ms | 401 KiB | 5 Q