3v4l.org

run code in 300+ PHP versions simultaneously
<?php $r1 = '/(?!<r)rn/'; $r2 = '((?:rr(*SKIP)(*FAIL)|)rn)'; var_dump(preg_match($r1, "rn")); var_dump(preg_match($r2, "rn"));

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
8.3.50.0110.00621.15
8.3.40.0070.00718.98
8.3.30.0070.00719.93
8.3.20.0050.00518.68
8.3.10.0060.00320.95
8.3.00.0040.00423.65
8.2.180.0150.00018.41
8.2.170.0080.00822.96
8.2.160.0070.00720.39
8.2.150.0090.00624.18
8.2.140.0070.00024.66
8.2.130.0000.00726.16
8.2.120.0100.01019.89
8.2.110.0040.00819.26
8.2.100.0000.01217.72
8.2.90.0000.00819.27
8.2.80.0070.00019.28
8.2.70.0080.00017.63
8.2.60.0000.00817.87
8.2.50.0060.00318.07
8.2.40.0050.00320.01
8.2.30.0070.00019.54
8.2.20.0040.00417.64
8.2.10.0060.00317.65
8.2.00.0040.00417.63
8.1.280.0180.00625.92
8.1.270.0000.00823.99
8.1.260.0080.00026.35
8.1.250.0000.00728.09
8.1.240.0030.00722.29
8.1.230.0110.00020.91
8.1.220.0050.00518.77
8.1.210.0040.00818.89
8.1.200.0040.00717.23
8.1.190.0040.00417.41
8.1.180.0040.00418.10
8.1.170.0050.00318.78
8.1.160.0000.00718.81
8.1.150.0030.00618.71
8.1.140.0000.00717.46
8.1.130.0000.00717.86
8.1.120.0020.00517.44
8.1.110.0040.00417.54
8.1.100.0040.00417.47
8.1.90.0000.00717.46
8.1.80.0040.00417.60
8.1.70.0020.00517.52
8.1.60.0040.00417.56
8.1.50.0000.00717.56
8.1.40.0000.00817.51
8.1.30.0040.00417.59
8.1.20.0030.00517.75
8.1.10.0040.00417.51
8.1.00.0030.00617.57
8.0.300.0070.00019.80
8.0.290.0070.00017.05
8.0.280.0030.00518.33
8.0.270.0000.00717.27
8.0.260.0030.00316.84
8.0.250.0040.00416.98
8.0.240.0040.00417.06
8.0.230.0000.00816.97
8.0.220.0000.00717.00
8.0.210.0070.00016.92
8.0.200.0040.00416.94
8.0.190.0040.00417.01
8.0.180.0000.00817.00
8.0.170.0000.00716.98
8.0.160.0050.00316.97
8.0.150.0000.00716.84
8.0.140.0040.00416.83
8.0.130.0030.00313.49
8.0.120.0000.00816.90
8.0.110.0070.00016.91
8.0.100.0000.00716.82
8.0.90.0030.00617.04
8.0.80.0060.00917.03
8.0.70.0050.00216.86
8.0.60.0040.00417.04
8.0.50.0000.00816.99
8.0.30.0120.00717.31
8.0.20.0070.01017.40
8.0.10.0040.00416.98
8.0.00.0090.00916.84
7.4.330.0000.00516.67
7.4.320.0000.00616.61
7.4.300.0060.00016.55
7.4.290.0040.00416.73
7.4.280.0000.00716.66
7.4.270.0000.00616.64
7.4.260.0030.00313.37
7.4.250.0040.00416.55
7.4.240.0070.00016.66
7.4.230.0000.00816.64
7.4.220.0040.01616.62
7.4.210.0060.01016.72
7.4.200.0000.00716.82
7.4.190.0080.00016.75
7.4.160.0130.00416.56
7.4.150.0140.00317.40
7.4.140.0090.00817.86
7.4.130.0090.01216.67
7.4.120.0090.01016.69
7.4.110.0120.00616.80
7.4.100.0090.00916.57
7.4.90.0100.01016.57
7.4.80.0090.01319.39
7.4.70.0070.01016.58
7.4.60.0040.01216.55
7.4.50.0030.00316.71
7.4.40.0040.01122.77
7.4.30.0090.00916.55
7.4.00.0070.01015.19
7.3.330.0000.00513.04
7.3.320.0000.00513.12
7.3.310.0040.00416.25
7.3.300.0000.00616.16
7.3.290.0000.01316.28
7.3.280.0090.01016.24
7.3.270.0070.01017.40
7.3.260.0150.00318.24
7.3.250.0080.00916.30
7.3.240.0030.01316.75
7.3.230.0060.01216.39
7.3.210.0150.00316.22
7.3.200.0140.00719.39
7.3.190.0160.00716.55
7.3.180.0110.00816.33
7.3.170.0130.00616.59
7.3.160.0080.00916.33
7.3.120.0040.01114.95
7.2.330.0060.01116.58
7.2.320.0100.00716.39
7.2.310.0160.00016.55
7.2.300.0000.01716.61
7.2.290.0130.00316.45
7.2.00.0040.00919.07
7.1.100.0040.00418.26
7.1.70.0070.00717.09
7.1.60.0130.01019.24
7.1.50.0070.01616.91
7.1.00.0070.04722.48
7.0.200.0000.00816.78
7.0.140.0100.06722.10
7.0.60.0030.09019.77
7.0.50.0070.08317.81
7.0.40.0170.07720.09
7.0.30.0600.06320.18
7.0.20.0200.05020.20
7.0.10.0400.07020.10
7.0.00.0070.04020.22
5.6.280.0070.07021.02
5.6.210.0000.04320.60
5.6.200.0100.06318.22
5.6.190.0030.04320.39
5.6.180.0400.07020.35
5.6.170.0330.07720.71
5.6.160.0070.07720.33
5.6.150.0030.04318.18
5.6.140.0070.05318.17
5.6.130.0030.04318.07
5.6.120.0070.08720.98
5.6.110.0130.07720.99
5.6.100.0000.04320.98
5.6.90.0100.06720.95
5.6.80.0100.06020.37
5.6.70.0330.05320.36
5.5.350.0230.04320.53
5.5.340.0030.08317.98
5.5.330.0030.08320.36
5.5.320.0130.05320.25
5.5.310.0230.05720.31
5.5.300.0100.07317.91
5.5.290.0170.05017.92
5.5.280.0100.04320.93
5.5.270.0130.03720.87
5.5.260.0070.04720.75
5.5.250.0070.06320.57
5.5.240.0100.07020.25
5.4.450.1870.03719.56
5.4.440.1900.04319.23
5.4.430.1670.04319.25
5.4.420.1770.04019.39
5.4.410.1700.03719.41
5.4.400.1670.03719.10
5.4.390.1730.03319.13
5.4.380.2100.04719.09
5.4.370.1800.04019.07
5.4.360.2000.04019.13
5.4.350.2030.03318.77
5.4.340.0270.05319.10
5.4.320.0270.07019.05
5.4.310.0200.07318.93
5.4.300.0270.06319.08
5.4.290.0200.04719.09
5.4.280.0230.07018.88
5.4.270.0200.04718.88
5.4.260.0100.06019.08
5.4.250.0270.03719.06
5.4.240.0170.07319.24
5.4.230.0230.06718.77
5.4.220.0170.03718.91
5.4.210.0230.04718.91
5.4.200.0130.04319.12
5.4.190.0130.04019.08
5.4.180.0170.04319.04
5.4.170.0230.04718.76
5.4.160.0230.03319.13
5.4.150.0200.03319.04
5.4.140.0170.04716.20
5.4.130.0170.03316.50
5.4.120.0200.04316.15
5.4.110.0100.05716.38
5.4.100.0230.03316.30
5.4.90.0230.04016.43
5.4.80.0200.04016.36
5.4.70.0230.05016.40
5.4.60.0170.04316.15
5.4.50.0200.03016.36
5.4.40.0130.04016.42
5.4.30.0200.03016.15
5.4.20.0130.03716.32
5.4.10.0230.04016.32
5.4.00.0170.06315.99
5.3.290.0130.05014.50
5.3.280.0130.04014.42
5.3.270.0170.04314.55
5.3.260.0200.03714.46
5.3.250.0130.04014.70
5.3.240.0200.03714.45
5.3.230.0200.04714.69
5.3.220.0230.04014.40
5.3.210.0100.04314.46
5.3.200.0200.03314.44
5.3.190.0130.04014.53
5.3.180.0200.03314.43
5.3.170.0130.04014.43
5.3.160.0200.05714.46
5.3.150.0170.03714.42
5.3.140.0170.03314.38
5.3.130.0200.03314.50
5.3.120.0130.04014.40
5.3.110.0230.04314.50
5.3.100.0170.05013.88
5.3.90.0100.04013.97
5.3.80.0270.03713.87
5.3.70.0130.04713.96
5.3.60.0230.04013.88
5.3.50.0200.03013.74
5.3.40.0230.06713.89
5.3.30.0170.06313.81
5.3.20.0200.03713.70
5.3.10.0230.05713.50
5.3.00.0200.04013.58
5.2.170.0130.03011.10
5.2.160.0170.03311.16
5.2.150.0200.03311.05
5.2.140.0170.03311.14
5.2.130.0230.04711.01
5.2.120.0200.02711.01
5.2.110.0270.02311.04
5.2.100.0170.04311.04
5.2.90.0130.02710.98
5.2.80.0100.03711.14
5.2.70.0070.03710.95
5.2.60.0100.03011.06
5.2.50.0200.02010.92
5.2.40.0130.02311.04
5.2.30.0130.04710.80
5.2.20.0130.02711.04
5.2.10.0070.03010.82
5.2.00.0130.03310.63
5.1.60.0100.02710.09
5.1.50.0100.03710.15
5.1.40.0130.02010.14
5.1.30.0200.04710.30
5.1.20.0130.02310.46
5.1.10.0130.05310.04
5.1.00.0130.02710.19
5.0.50.0070.0478.52
5.0.40.0070.0378.30
5.0.30.0070.0638.10
5.0.20.0070.0208.32
5.0.10.0100.0408.25
5.0.00.0070.0608.04
4.4.90.0030.0337.78
4.4.80.0070.0237.78
4.4.70.0030.0407.78
4.4.60.0100.0137.78
4.4.50.0070.0277.78
4.4.40.0100.0307.78
4.4.30.0070.0177.78
4.4.20.0100.0307.78
4.4.10.0030.0177.78
4.4.00.0100.0237.78
4.3.110.0100.0337.78
4.3.100.0100.0137.78
4.3.90.0100.0237.78
4.3.80.0100.0337.78
4.3.70.0070.0177.78
4.3.60.0100.0137.78
4.3.50.0070.0337.78
4.3.40.0130.0437.78
4.3.30.0000.0277.78
4.3.20.0030.0377.78
4.3.10.0030.0377.78
4.3.00.0030.0377.78

preferences:
38.91 ms | 401 KiB | 5 Q