3v4l.org

run code in 300+ PHP versions simultaneously
<?php $pattern = '/\bRo\(M\)/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)
8.3.60.0080.00818.56
8.3.50.0130.00922.15
8.3.40.0120.00918.88
8.3.30.0070.00719.09
8.3.20.0040.00420.34
8.3.10.0000.00820.66
8.3.00.0090.00019.63
8.2.180.0120.00916.88
8.2.170.0090.00922.96
8.2.160.0140.00020.47
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0070.00026.16
8.2.120.0060.00322.48
8.2.110.0050.00522.22
8.2.100.0000.01118.16
8.2.90.0050.00319.07
8.2.80.0000.00817.97
8.2.70.0000.00817.61
8.2.60.0050.00317.93
8.2.50.0100.00018.07
8.2.40.0000.00718.19
8.2.30.0050.00219.32
8.2.20.0040.00418.01
8.2.10.0000.00818.07
8.2.00.0070.00017.93
8.1.280.0090.00925.92
8.1.270.0140.00423.96
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0030.00623.97
8.1.230.0110.00019.12
8.1.220.0040.00417.74
8.1.210.0030.00518.77
8.1.200.0000.00817.48
8.1.190.0050.00317.35
8.1.180.0040.00418.10
8.1.170.0030.00618.61
8.1.160.0000.00722.01
8.1.150.0040.00418.87
8.1.140.0040.00417.64
8.1.130.0030.00317.89
8.1.120.0040.00417.62
8.1.110.0070.00017.48
8.1.100.0050.00317.59
8.1.90.0030.00517.64
8.1.80.0110.00017.49
8.1.70.0030.00317.47
8.1.60.0030.00617.79
8.1.50.0040.00417.71
8.1.40.0030.00517.65
8.1.30.0000.00817.84
8.1.20.0000.00717.79
8.1.10.0040.00417.50
8.1.00.0000.00817.47
8.0.300.0000.00718.77
8.0.290.0000.00716.88
8.0.280.0030.00318.51
8.0.270.0070.00017.18
8.0.260.0000.00717.14
8.0.250.0070.00017.14
8.0.240.0000.00817.18
8.0.230.0030.00317.04
8.0.220.0000.00717.12
8.0.210.0000.00817.16
8.0.200.0000.00717.14
8.0.190.0030.00317.02
8.0.180.0070.00017.04
8.0.170.0080.00017.13
8.0.160.0000.00816.95
8.0.150.0070.00017.00
8.0.140.0070.00017.07
8.0.130.0000.00513.45
8.0.120.0040.00417.15
8.0.110.0000.00916.96
8.0.100.0040.00417.08
8.0.90.0040.00416.96
8.0.80.0150.00617.13
8.0.70.0050.00317.21
8.0.60.0000.00717.20
8.0.50.0050.00316.92
8.0.30.0090.00917.08
8.0.20.0110.01017.42
8.0.10.0000.00717.08
8.0.00.0120.00616.98
7.4.330.0040.00415.00
7.4.320.0070.00016.86
7.4.300.0000.00616.75
7.4.290.0030.00316.86
7.4.280.0050.00216.80
7.4.270.0030.00316.74
7.4.260.0000.00816.73
7.4.250.0040.00416.87
7.4.240.0030.00416.82
7.4.230.0070.00016.97
7.4.220.0140.01016.79
7.4.210.0070.00716.73
7.4.200.0000.00716.71
7.4.160.0100.00716.78
7.4.150.0210.00417.40
7.4.140.0100.00717.86
7.4.130.0030.01516.75
7.4.120.0130.00416.76
7.4.110.0140.00616.73
7.4.100.0030.01816.58
7.4.90.0060.01316.84
7.4.80.0120.00919.39
7.4.70.0060.01216.70
7.4.60.0040.01416.65
7.4.50.0040.00416.73
7.4.40.0120.00916.81
7.4.30.0080.00716.73
7.4.00.0050.01215.11
7.3.330.0050.00013.23
7.3.320.0000.00513.22
7.3.310.0070.00016.35
7.3.300.0030.00316.43
7.3.290.0170.00316.45
7.3.280.0100.00716.48
7.3.270.0150.00917.40
7.3.260.0200.00316.49
7.3.250.0130.00816.36
7.3.240.0070.01116.43
7.3.230.0120.00916.41
7.3.210.0070.01016.65
7.3.200.0080.01119.39
7.3.190.0130.01016.71
7.3.180.0040.01116.63
7.3.170.0000.01516.55
7.3.160.0030.01316.69
7.3.120.0000.01415.00
7.3.110.0070.00714.95
7.3.100.0100.00714.94
7.3.90.0070.00715.18
7.3.80.0040.01115.10
7.3.70.0120.00314.81
7.3.60.0090.00614.97
7.3.50.0080.00815.01
7.3.40.0030.00915.08
7.3.30.0000.01314.77
7.3.20.0060.00616.75
7.3.10.0080.00616.86
7.3.00.0030.00616.78
7.2.330.0070.01016.56
7.2.320.0030.01416.75
7.2.310.0100.01016.73
7.2.300.0100.00616.87
7.2.290.0090.00816.50
7.2.250.0070.01015.34
7.2.240.0130.00615.26
7.2.230.0030.01315.17
7.2.220.0030.01315.33
7.2.210.0100.00715.25
7.2.200.0030.01314.86
7.2.190.0100.01014.84
7.2.180.0030.01315.02
7.2.170.0060.00615.21
7.2.110.0160.00316.84
7.2.100.0170.00016.75
7.2.90.0200.00016.84
7.2.80.0090.00616.80
7.2.70.0040.01116.85
7.2.60.0050.01116.79
7.2.50.0140.00416.61
7.2.40.0100.01016.77
7.2.30.0160.00517.14
7.2.20.0140.00616.75
7.2.10.0130.00716.91
7.2.00.0140.00518.23
7.1.330.0090.00616.02
7.1.320.0030.01216.03
7.1.310.0070.01015.81
7.1.300.0090.00315.94
7.1.290.0060.00915.62
7.1.280.0000.01315.96
7.1.270.0090.00615.89
7.1.260.0070.00715.91
7.1.230.0140.00915.69
7.1.220.0070.01015.94
7.1.210.0140.00315.63
7.1.200.0170.01015.72
7.1.190.0100.00515.86
7.1.180.0150.00315.79
7.1.170.0100.00315.78
7.1.160.0110.00715.88
7.1.150.0090.00615.86
7.1.140.0090.00715.76
7.1.130.0070.00715.98
7.1.120.0100.01015.93
7.1.110.0090.00815.98
7.1.100.0100.00417.05
7.1.90.0060.00916.13
7.1.80.0050.00815.93
7.1.70.0050.00616.45
7.1.60.0120.00917.64
7.1.50.0110.01116.61
7.1.40.0140.00316.22
7.1.30.0120.00616.14
7.1.20.0140.00715.97
7.1.10.0090.00915.88
7.1.00.0100.03619.13
7.0.310.0160.00515.52
7.0.300.0100.00715.58
7.0.290.0070.01015.39
7.0.280.0080.00815.64
7.0.270.0100.00715.50
7.0.260.0090.00915.12
7.0.250.0100.00415.58
7.0.240.0100.00715.67
7.0.230.0130.00315.64
7.0.220.0100.00715.46
7.0.210.0110.00415.59
7.0.200.0060.00616.14
7.0.190.0140.00615.53
7.0.180.0080.00415.46
7.0.170.0100.00315.70
7.0.160.0130.00415.70
7.0.150.0080.00415.67
7.0.140.0110.03618.79
7.0.130.0110.00415.49
7.0.120.0100.00415.64
7.0.110.0150.00015.69
7.0.100.0110.00515.37
7.0.90.0070.00715.55
7.0.80.0080.00915.75
7.0.70.0090.00715.59
7.0.60.0110.03817.76
7.0.50.0110.04216.77
7.0.40.0100.04716.85
7.0.30.0280.02816.96
7.0.20.0240.03616.98
7.0.10.0110.04516.89
7.0.00.0070.04716.83
5.6.380.0060.01214.00
5.6.370.0160.00313.88
5.6.360.0180.00314.22
5.6.350.0050.01414.59
5.6.340.0060.00714.51
5.6.330.0120.00314.28
5.6.320.0100.00314.32
5.6.310.0070.00714.50
5.6.300.0180.00314.05
5.6.290.0070.00713.95
5.6.280.0080.03617.62
5.6.270.0100.00614.23
5.6.260.0060.01214.33
5.6.250.0070.01014.12
5.6.240.0100.01014.30
5.6.230.0080.00814.29
5.6.220.0070.00514.43
5.6.210.0140.04117.45
5.6.200.0070.04216.35
5.6.190.0050.03317.38
5.6.180.0300.03817.56
5.6.170.0310.02817.66
5.6.160.0120.04017.33
5.6.150.0070.04116.49
5.6.140.0120.04216.12
5.6.130.0110.03516.28
5.6.120.0120.01917.78
5.6.110.0120.04017.81
5.6.100.0070.03817.54
5.6.90.0110.04217.54
5.6.80.0110.01617.37
5.6.70.0150.00314.15
5.6.60.0040.01114.14
5.6.50.0130.00314.34
5.6.40.0110.00414.20
5.6.30.0140.00014.19
5.6.20.0140.00014.23
5.6.10.0040.01314.39
5.6.00.0110.00714.06
5.5.380.0120.00310.93
5.5.370.0100.00711.21
5.5.360.0000.01011.13
5.5.350.0080.04515.78
5.5.340.0110.04114.47
5.5.330.0030.02715.59
5.5.320.0190.03715.70
5.5.310.0220.03815.49
5.5.300.0120.02714.61
5.5.290.0120.03814.63
5.5.280.0030.03815.93
5.5.270.0060.04615.94
5.5.260.0090.03915.94
5.5.250.0060.03315.96
5.5.240.0090.04515.67
5.5.230.0070.00711.10
5.5.220.0140.00311.21
5.5.210.0110.00311.11
5.5.200.0140.00010.91
5.5.190.0100.00311.11
5.5.180.0080.00511.32
5.5.170.0110.00714.20
5.5.160.0040.00411.26
5.5.150.0030.00711.06
5.5.140.0060.00611.04
5.5.130.0080.00511.22
5.5.120.0060.00610.98
5.5.110.0100.00311.22
5.5.100.0110.00011.17
5.5.90.0080.00510.79
5.5.80.0070.00410.95
5.5.70.0090.00311.19
5.5.60.0040.00811.20
5.5.50.0120.00011.23
5.5.40.0040.00811.19
5.5.30.0080.00811.28
5.5.20.0080.00411.21
5.5.10.0080.00611.07
5.5.00.0110.00311.18
5.4.450.0340.02315.33
5.4.440.0290.02015.43
5.4.430.0450.02015.41
5.4.420.0130.02615.22
5.4.410.0200.02515.44
5.4.400.0070.01815.38
5.4.390.0150.02315.01
5.4.380.0190.03214.77
5.4.370.0280.02614.74
5.4.360.0220.02714.88
5.4.350.0290.03314.92
5.4.340.0290.03314.98
5.4.330.0080.00410.75
5.4.320.0080.02411.71
5.4.310.0070.02211.85
5.4.300.0040.02411.81
5.4.290.0050.02411.79
5.4.280.0080.02011.82
5.4.270.0020.02511.73
5.4.260.0010.02611.76
5.4.250.0060.02411.78
5.4.240.0100.01711.85
5.4.230.0070.02111.71
5.4.220.0090.01811.65
5.4.210.0060.02111.74
5.4.200.0080.02011.77
5.4.190.0080.02111.59
5.4.180.0070.02111.78
5.4.170.0060.02111.55
5.4.160.0090.01711.77
5.4.150.0060.02011.59
5.4.140.0070.02011.49
5.4.130.0070.02211.56
5.4.120.0090.01811.58
5.4.110.0120.02211.44
5.4.100.0060.02211.58
5.4.90.0050.02211.53
5.4.80.0080.02011.48
5.4.70.0120.01611.56
5.4.60.0070.01911.37
5.4.50.0100.01911.60
5.4.40.0090.01811.59
5.4.30.0090.01811.46
5.4.20.0070.02011.44
5.4.10.0050.01911.57
5.4.00.0060.01911.24
5.3.290.0060.02211.71
5.3.280.0080.02111.68
5.3.270.0060.02411.67
5.3.260.0080.02211.72
5.3.250.0080.02011.67
5.3.240.0080.02011.67
5.3.230.0080.02011.66
5.3.220.0090.01911.65
5.3.210.0100.01811.67
5.3.200.0040.02211.65
5.3.190.0070.02111.64
5.3.180.0110.02011.69
5.3.170.0100.01811.68
5.3.160.0090.02011.67
5.3.150.0020.02611.68
5.3.140.0050.02211.65
5.3.130.0060.02211.63
5.3.120.0090.02111.64
5.3.110.0050.02211.64
5.3.100.0060.02011.37
5.3.90.0090.01911.36
5.3.80.0090.01811.35
5.3.70.0060.02111.36
5.3.60.0080.02011.36
5.3.50.0060.01911.32
5.3.40.0090.01911.32
5.3.30.0050.02211.30
5.3.20.0080.01911.19
5.3.10.0070.02311.17
5.3.00.0100.02011.16
5.2.170.0030.0209.91
5.2.160.0040.0189.92
5.2.150.0080.0139.91
5.2.140.0050.0169.91
5.2.130.0060.0169.89
5.2.120.0060.0179.89
5.2.110.0060.0169.90
5.2.100.0070.0189.89
5.2.90.0090.0149.89
5.2.80.0050.0159.89
5.2.70.0070.0159.89
5.2.60.0020.0209.87
5.2.50.0040.0169.85
5.2.40.0050.0149.84
5.2.30.0080.0159.83
5.2.20.0050.0229.83
5.2.10.0060.0179.77
5.2.00.0090.0149.70
5.1.60.0080.0139.34
5.1.50.0040.0169.34
5.1.40.0030.0179.34
5.1.30.0060.0159.51
5.1.20.0050.0149.52
5.1.10.0070.0149.38
5.1.00.0050.0159.38
5.0.50.0040.0128.62
5.0.40.0040.0098.55
5.0.30.0040.0168.46
5.0.20.0070.0098.44
5.0.10.0040.0118.43
5.0.00.0050.0178.43
4.4.90.0030.0097.70
4.4.80.0050.0097.68
4.4.70.0040.0077.69
4.4.60.0040.0097.68
4.4.50.0040.0097.69
4.4.40.0020.0147.66
4.4.30.0050.0107.69
4.4.20.0030.0127.73
4.4.10.0030.0077.73
4.4.00.0030.0157.69
4.3.110.0050.0087.64
4.3.100.0010.0117.64
4.3.90.0030.0087.63
4.3.80.0020.0167.60
4.3.70.0050.0077.62
4.3.60.0050.0067.62
4.3.50.0030.0117.62
4.3.40.0030.0147.57
4.3.30.0030.0116.95
4.3.20.0030.0096.94
4.3.10.0020.0116.92
4.3.00.0040.01113.67

preferences:
46.33 ms | 401 KiB | 5 Q