3v4l.org

run code in 300+ PHP versions simultaneously
<?php $pattern = '/\b' . preg_quote('Ro(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)
8.3.40.0100.00618.84
8.3.30.0100.00319.04
8.3.20.0070.00020.29
8.3.10.0040.00420.66
8.3.00.0000.00819.63
8.2.170.0080.00622.96
8.2.160.0120.00620.47
8.2.150.0030.00524.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0000.00822.18
8.2.110.0000.01121.12
8.2.100.0120.00017.80
8.2.90.0030.00619.41
8.2.80.0030.00517.97
8.2.70.0000.00817.63
8.2.60.0070.00417.93
8.2.50.0060.00318.07
8.2.40.0000.00918.16
8.2.30.0030.00319.44
8.2.20.0000.00817.91
8.2.10.0000.00818.20
8.2.00.0000.00717.89
8.1.270.0080.00023.95
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0080.00322.02
8.1.230.0040.00821.01
8.1.220.0050.00317.74
8.1.210.0030.00518.81
8.1.200.0040.00417.36
8.1.190.0030.00517.48
8.1.180.0080.00018.10
8.1.170.0000.00818.74
8.1.160.0080.00022.02
8.1.150.0000.00718.91
8.1.140.0040.00417.70
8.1.130.0070.00017.86
8.1.120.0040.00417.63
8.1.110.0040.00417.60
8.1.100.0000.00717.58
8.1.90.0000.00817.66
8.1.80.0030.00617.64
8.1.70.0000.00717.57
8.1.60.0030.00517.69
8.1.50.0090.00017.63
8.1.40.0040.00417.69
8.1.30.0040.00417.80
8.1.20.0060.00317.79
8.1.10.0000.00817.64
8.1.00.0030.00517.57
8.0.300.0040.00419.96
8.0.290.0000.00817.00
8.0.280.0050.00318.46
8.0.270.0050.00317.25
8.0.260.0060.00017.18
8.0.250.0070.00017.20
8.0.240.0040.00417.12
8.0.230.0000.00717.16
8.0.220.0000.00717.09
8.0.210.0030.00317.18
8.0.200.0000.00617.07
8.0.190.0030.00317.07
8.0.180.0070.00017.13
8.0.170.0060.00317.11
8.0.160.0040.00416.94
8.0.150.0040.00316.96
8.0.140.0070.00016.99
8.0.130.0030.00313.55
8.0.120.0000.00817.14
8.0.110.0000.00817.14
8.0.100.0070.00017.04
8.0.90.0000.00717.15
8.0.80.0120.00617.11
8.0.70.0000.00717.15
8.0.60.0000.00716.93
8.0.50.0040.00317.14
8.0.30.0110.00817.34
8.0.20.0070.01417.48
8.0.10.0030.00317.15
8.0.00.0050.01216.99
7.4.330.0030.00315.00
7.4.320.0000.00616.86
7.4.300.0030.00316.68
7.4.290.0000.00716.87
7.4.280.0030.00616.86
7.4.270.0050.00316.76
7.4.260.0030.00316.72
7.4.250.0070.00016.84
7.4.240.0050.00316.83
7.4.230.0040.00416.61
7.4.220.0120.00616.91
7.4.210.0090.00616.89
7.4.200.0040.00416.96
7.4.160.0120.00316.80
7.4.150.0080.00917.40
7.4.140.0080.00917.86
7.4.130.0100.00916.74
7.4.120.0090.00916.73
7.4.110.0140.00416.74
7.4.100.0070.01116.85
7.4.90.0080.01516.82
7.4.80.0090.00919.39
7.4.70.0100.00616.88
7.4.60.0120.00616.78
7.4.50.0050.00316.84
7.4.40.0030.01316.55
7.4.30.0060.00916.69
7.4.10.0070.01015.27
7.4.00.0070.01015.00
7.3.330.0000.00613.16
7.3.320.0000.00513.21
7.3.310.0000.00716.25
7.3.300.0030.00316.43
7.3.290.0100.01016.43
7.3.280.0070.01116.37
7.3.270.0100.00817.40
7.3.260.0060.01316.45
7.3.250.0100.00816.61
7.3.240.0080.00816.52
7.3.230.0160.00316.53
7.3.210.0090.00916.42
7.3.200.0030.01619.39
7.3.190.0160.00416.43
7.3.180.0080.00816.69
7.3.170.0060.01016.46
7.3.160.0110.01116.50
7.3.130.0120.00615.16
7.3.120.0130.00514.91
7.3.110.0110.00514.94
7.3.100.0020.01214.95
7.3.90.0050.01014.60
7.3.80.0030.00914.92
7.3.70.0080.00614.81
7.3.60.0080.00715.03
7.3.50.0050.00914.83
7.3.40.0090.00315.00
7.3.30.0060.00914.98
7.3.20.0020.01116.57
7.3.10.0030.01116.92
7.3.00.0020.01116.65
7.2.330.0110.01116.70
7.2.320.0070.01016.52
7.2.310.0090.01216.72
7.2.300.0090.00616.78
7.2.290.0000.01616.67
7.2.260.0060.01315.20
7.2.250.0070.01215.15
7.2.240.0130.00515.10
7.2.230.0020.01015.17
7.2.220.0050.01115.15
7.2.210.0060.00615.24
7.2.200.0050.00915.20
7.2.190.0030.01214.98
7.2.180.0060.01015.20
7.2.170.0060.00615.06
7.2.160.0030.01015.22
7.2.150.0040.00816.91
7.2.140.0040.01117.13
7.2.130.0030.01016.91
7.2.120.0110.00616.89
7.2.110.0040.01116.84
7.2.100.0070.00716.94
7.2.90.0100.00317.04
7.2.80.0040.00717.17
7.2.70.0030.01317.28
7.2.60.0000.01417.01
7.2.50.0060.00617.20
7.2.40.0060.00917.19
7.2.30.0090.00916.99
7.2.20.0030.01317.09
7.2.10.0000.01416.89
7.2.00.0010.01018.38
7.1.330.0030.01115.79
7.1.320.0060.00915.76
7.1.310.0040.00915.81
7.1.300.0100.00315.63
7.1.290.0060.00615.82
7.1.280.0030.00915.78
7.1.270.0060.00715.97
7.1.260.0040.00615.74
7.1.250.0030.01015.88
7.1.240.0100.00015.55
7.1.230.0000.01515.72
7.1.220.0060.00615.95
7.1.210.0060.00915.90
7.1.200.0030.00916.03
7.1.190.0100.00715.94
7.1.180.0060.00616.03
7.1.170.0070.00715.90
7.1.160.0030.01015.92
7.1.150.0100.00315.67
7.1.140.0060.00615.78
7.1.130.0070.00715.63
7.1.120.0040.00815.96
7.1.110.0080.00815.68
7.1.100.0030.01017.20
7.1.90.0000.01415.77
7.1.80.0030.00916.12
7.1.70.0050.00916.45
7.1.60.0050.01417.60
7.1.50.0090.00916.43
7.1.40.0070.00715.87
7.1.30.0040.01115.89
7.1.20.0030.01215.83
7.1.10.0000.01115.96
7.1.00.0060.04219.14
7.0.330.0030.01215.58
7.0.320.0100.00315.33
7.0.310.0060.00915.48
7.0.300.0110.00415.43
7.0.290.0060.01015.64
7.0.280.0040.00715.51
7.0.270.0070.01115.59
7.0.260.0070.00815.57
7.0.250.0040.01115.37
7.0.240.0080.00415.25
7.0.230.0070.01015.55
7.0.220.0060.00815.54
7.0.210.0070.00715.34
7.0.200.0040.00615.98
7.0.190.0000.01315.63
7.0.180.0060.00615.45
7.0.170.0100.00315.30
7.0.160.0030.00715.45
7.0.150.0040.00715.58
7.0.140.0060.03818.86
7.0.130.0030.01015.67
7.0.120.0090.00615.39
7.0.110.0040.00415.68
7.0.100.0030.00915.37
7.0.90.0030.01315.73
7.0.80.0030.01315.47
7.0.70.0150.00015.63
7.0.60.0050.03617.81
7.0.50.0080.02716.67
7.0.40.0070.03216.88
7.0.30.0200.02817.02
7.0.20.0130.03216.69
7.0.10.0110.04416.76
7.0.00.0030.02816.84
5.6.400.0030.01014.45
5.6.390.0080.00314.17
5.6.380.0000.01414.48
5.6.370.0030.01014.57
5.6.360.0000.01313.91
5.6.350.0030.01014.27
5.6.340.0070.00714.25
5.6.330.0150.00414.32
5.6.320.0000.01114.50
5.6.310.0060.00314.16
5.6.300.0060.00614.46
5.6.290.0090.00614.54
5.6.280.0080.03817.54
5.6.270.0030.00614.42
5.6.260.0030.00914.52
5.6.250.0030.01014.68
5.6.240.0070.00714.42
5.6.230.0080.00814.32
5.6.220.0060.00314.29
5.6.210.0090.04217.62
5.6.200.0050.02416.37
5.6.190.0060.04317.43
5.6.180.0190.02817.31
5.6.170.0080.02617.39
5.6.160.0070.02517.45
5.6.150.0070.02816.17
5.6.140.0070.04716.39
5.6.130.0020.02716.29
5.6.120.0050.04617.72
5.6.110.0050.05017.81
5.6.100.0020.03017.50
5.6.90.0150.03617.63
5.6.80.0020.04217.27
5.6.70.0030.01014.11
5.6.60.0070.00714.23
5.6.50.0110.00414.36
5.6.40.0110.00414.39
5.6.30.0030.01014.31
5.6.20.0030.00914.34
5.6.10.0030.00714.48
5.6.00.0030.00714.21
5.5.380.0030.01414.41
5.5.370.0030.01214.40
5.5.360.0160.00014.62
5.5.350.0180.04017.33
5.5.340.0050.02416.21
5.5.330.0080.04117.44
5.5.320.0080.04517.24
5.5.310.0100.02817.26
5.5.300.0080.03316.12
5.5.290.0050.04416.00
5.5.280.0060.02417.50
5.5.270.0120.02517.50
5.5.260.0050.04717.68
5.5.250.0120.04017.29
5.5.240.0100.04317.21
5.5.230.0040.00814.52
5.5.220.0060.00614.37
5.5.210.0070.00714.29
5.5.200.0100.00614.36
5.5.190.0070.00714.32
5.5.180.0030.00714.33
5.5.170.0060.00614.43
5.5.160.0030.01014.14
5.5.150.0120.00314.28
5.5.140.0070.00714.11
5.5.130.0090.00614.27
5.5.120.0000.00913.84
5.5.110.0030.01414.17
5.5.100.0070.00714.14
5.5.90.0070.00714.35
5.5.80.0060.00614.11
5.5.70.0060.00614.32
5.5.60.0030.01014.32
5.5.50.0080.00814.28
5.5.40.0060.00914.17
5.5.30.0040.00413.84
5.5.20.0030.01014.17
5.5.10.0000.01214.52
5.5.00.0070.00714.19
5.4.450.0200.02815.64
5.4.440.0120.02215.69
5.4.430.0070.02915.63
5.4.420.0140.02515.63
5.4.410.0120.02515.63
5.4.400.0120.01715.47
5.4.390.0200.02715.37
5.4.380.0260.02815.26
5.4.370.0260.02715.15
5.4.360.0250.02815.28
5.4.350.0300.03515.19
5.4.340.0170.03315.26
5.4.330.0030.00611.81
5.4.320.0070.02012.13
5.4.310.0070.02112.13
5.4.300.0080.01912.13
5.4.290.0020.02512.13
5.4.280.0050.01912.08
5.4.270.0040.02312.08
5.4.260.0050.02312.08
5.4.250.0040.02312.08
5.4.240.0060.02012.08
5.4.230.0060.02112.07
5.4.220.0060.02112.07
5.4.210.0090.01512.08
5.4.200.0050.02312.08
5.4.190.0030.02212.07
5.4.180.0050.02512.07
5.4.170.0030.02412.08
5.4.160.0040.02212.08
5.4.150.0060.02012.08
5.4.140.0020.02311.92
5.4.130.0040.02311.91
5.4.120.0080.01911.89
5.4.110.0030.02111.89
5.4.100.0040.02611.89
5.4.90.0050.02911.89
5.4.80.0060.02511.89
5.4.70.0070.01811.88
5.4.60.0050.02211.88
5.4.50.0040.02211.89
5.4.40.0080.02211.88
5.4.30.0040.02211.88
5.4.20.0020.02411.88
5.4.10.0060.02111.88
5.4.00.0080.01911.63
5.3.290.0080.03812.80
5.3.280.0070.03712.71
5.3.270.0090.04212.72
5.3.260.0040.04212.72
5.3.250.0090.04412.72
5.3.240.0080.03612.72
5.3.230.0070.03712.71
5.3.220.0030.04012.68
5.3.210.0070.03812.68
5.3.200.0050.03712.68
5.3.190.0020.04112.68
5.3.180.0040.04312.68
5.3.170.0110.03612.67
5.3.160.0070.03812.67
5.3.150.0070.03412.67
5.3.140.0050.03812.66
5.3.130.0090.03612.66
5.3.120.0100.03912.66
5.3.110.0090.03712.66
5.3.100.0090.03812.12
5.3.90.0040.03812.08
5.3.80.0080.03512.07
5.3.70.0040.04012.08
5.3.60.0060.03512.07
5.3.50.0090.03812.00
5.3.40.0060.04012.00
5.3.30.0070.03511.96
5.3.20.0100.03111.73
5.3.10.0070.03411.70
5.3.00.0090.03411.69
5.2.170.0100.0329.19
5.2.160.0010.0329.19
5.2.150.0040.0319.19
5.2.140.0040.0329.19
5.2.130.0050.0339.14
5.2.120.0070.0279.14
5.2.110.0050.0299.16
5.2.100.0010.0329.15
5.2.90.0050.0289.15
5.2.80.0030.0329.14
5.2.70.0040.0379.15
5.2.60.0030.0329.10
5.2.50.0050.0309.07
5.2.40.0050.0289.05
5.2.30.0050.0299.02
5.2.20.0060.0279.01
5.2.10.0060.0328.93
5.2.00.0070.0288.79
5.1.60.0040.0238.07
5.1.50.0040.0248.07
5.1.40.0020.0268.06
5.1.30.0040.0258.40
5.1.20.0030.0278.43
5.1.10.0030.0288.15
5.1.00.0040.0268.15
5.0.50.0020.0216.63
5.0.40.0040.0266.49
5.0.30.0050.0296.30
5.0.20.0040.0206.27
5.0.10.0040.0186.25
5.0.00.0010.0326.24
4.4.90.0020.0154.78
4.4.80.0020.0174.75
4.4.70.0040.0244.75
4.4.60.0020.0164.76
4.4.50.0020.0224.77
4.4.40.0040.0234.71
4.4.30.0050.0174.76
4.4.20.0030.0154.85
4.4.10.0010.0174.85
4.4.00.0030.0254.76
4.3.110.0010.0174.67
4.3.100.0020.0154.66
4.3.90.0030.0134.63
4.3.80.0030.0244.58
4.3.70.0010.0164.63
4.3.60.0020.0144.62
4.3.50.0020.0154.62
4.3.40.0040.0224.53
4.3.30.0010.0163.29
4.3.20.0020.0153.27
4.3.10.0020.0153.23
4.3.00.0030.01716.73

preferences:
41.07 ms | 400 KiB | 5 Q