3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string1 = "sqrtpdrt"; // matched $string2 = "qwntfschRprtkjs"; // not matched (contains chr group) $regex = '/^(?=(?i).*[bcdfghjklmnpqrstvwxz]{4})(?!.*chr)/'; var_dump(preg_match($regex, $string1)); var_dump(preg_match($regex, $string2));

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)
8.3.70.0150.00616.88
8.3.60.0140.00716.75
8.3.50.0120.00722.26
8.3.40.0040.01118.71
8.3.30.0090.00619.02
8.3.20.0070.00020.29
8.3.10.0050.00223.52
8.3.00.0080.00020.95
8.2.180.0090.00918.42
8.2.170.0040.01122.96
8.2.160.0140.00020.44
8.2.150.0040.00424.18
8.2.140.0000.00924.66
8.2.130.0130.00626.16
8.2.120.0040.00419.61
8.2.110.0040.00420.54
8.2.100.0090.00318.03
8.2.90.0090.00019.22
8.2.80.0040.00417.97
8.2.70.0040.00417.75
8.2.60.0040.00417.93
8.2.50.0030.00618.07
8.2.40.0040.00419.95
8.2.30.0040.00418.09
8.2.20.0040.00417.82
8.2.10.0070.00018.13
8.2.00.0030.00617.71
8.1.280.0130.00725.92
8.1.270.0040.00423.79
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0040.00422.37
8.1.230.0090.00317.52
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0030.00617.35
8.1.190.0030.00617.13
8.1.180.0000.00918.10
8.1.170.0030.00618.61
8.1.160.0000.00721.90
8.1.150.0070.00018.68
8.1.140.0000.00817.55
8.1.130.0070.00017.73
8.1.120.0000.00817.44
8.1.110.0000.00717.59
8.1.100.0000.00817.38
8.1.90.0080.00017.44
8.1.80.0080.00017.59
8.1.70.0000.00717.50
8.1.60.0030.00617.66
8.1.50.0030.00517.54
8.1.40.0030.00717.52
8.1.30.0060.00317.79
8.1.20.0000.00717.74
8.1.10.0000.00817.62
8.1.00.0060.00317.60
8.0.300.0070.00018.77
8.0.290.0040.00416.88
8.0.280.0030.00318.46
8.0.270.0000.00817.12
8.0.260.0000.00617.26
8.0.250.0000.00717.15
8.0.240.0000.00717.03
8.0.230.0000.00717.02
8.0.220.0030.00317.05
8.0.210.0070.00017.06
8.0.200.0000.00617.06
8.0.190.0050.00517.14
8.0.180.0030.00517.10
8.0.170.0040.00416.91
8.0.160.0000.00717.07
8.0.150.0000.00716.92
8.0.140.0000.00816.96
8.0.130.0030.00313.50
8.0.120.0000.00817.06
8.0.110.0000.00816.95
8.0.100.0040.00417.07
8.0.90.0000.00716.94
8.0.80.0130.00917.09
8.0.70.0000.00817.07
8.0.60.0040.00416.82
8.0.50.0040.00417.08
8.0.30.0100.00817.03
8.0.20.0100.01017.40
8.0.10.0070.00017.09
8.0.00.0040.01416.81
7.4.330.0030.00315.00
7.4.320.0030.00316.75
7.4.300.0000.00616.54
7.4.290.0060.00316.55
7.4.280.0030.00616.74
7.4.270.0030.00316.65
7.4.260.0070.00016.63
7.4.250.0040.00416.54
7.4.240.0000.00716.76
7.4.230.0030.00316.56
7.4.220.0100.00716.70
7.4.210.0070.00816.68
7.4.200.0080.00016.73
7.4.160.0120.00916.47
7.4.150.0100.01017.40
7.4.140.0080.00817.86
7.4.130.0110.00616.61
7.4.120.0150.00216.66
7.4.110.0100.00716.59
7.4.100.0090.00916.75
7.4.90.0150.00316.62
7.4.80.0060.01119.39
7.4.70.0120.00316.83
7.4.60.0130.00416.60
7.4.50.0040.00416.73
7.4.40.0030.01716.55
7.4.30.0100.00616.80
7.4.00.0030.01014.88
7.3.330.0000.00613.15
7.3.320.0020.00213.24
7.3.310.0030.00616.29
7.3.300.0040.00416.21
7.3.290.0100.00716.32
7.3.280.0090.00616.36
7.3.270.0120.00417.40
7.3.260.0090.01216.39
7.3.250.0110.00716.35
7.3.240.0110.00616.55
7.3.230.0130.00416.39
7.3.210.0100.00716.45
7.3.200.0030.01716.27
7.3.190.0130.00416.50
7.3.180.0090.00616.40
7.3.170.0130.00316.66
7.3.160.0090.00616.71
7.3.120.0030.00814.83
7.2.330.0140.00316.64
7.2.320.0030.01316.52
7.2.310.0130.01016.72
7.2.300.0130.00516.55
7.2.290.0120.00616.48
7.1.100.0030.00918.22
7.1.70.0030.00917.27
7.1.60.0100.01419.70
7.1.50.0070.01716.91
7.1.00.0030.07722.29
7.0.200.0150.00316.84
7.0.140.0100.06321.92
7.0.100.0000.04319.93
7.0.90.0130.03320.15
7.0.80.0070.04019.88
7.0.70.0070.03319.96
7.0.60.0000.03719.87
7.0.50.0000.04020.32
7.0.40.0000.05320.00
7.0.30.0100.07720.08
7.0.20.0230.05720.16
7.0.10.0000.04719.98
7.0.00.0070.05320.10
5.6.280.0070.06721.06
5.6.250.0000.04020.49
5.6.240.0070.05320.48
5.6.230.0030.04320.50
5.6.220.0070.03320.70
5.6.210.0030.05320.65
5.6.200.0030.04321.11
5.6.190.0070.04321.10
5.6.180.0070.08021.00
5.6.170.0070.05021.17
5.6.160.0000.09021.01
5.6.150.0130.08021.03
5.6.140.0030.06321.05
5.6.130.0100.08321.01
5.6.120.0100.08721.01
5.6.110.0000.05720.93
5.6.100.0100.07721.06
5.6.90.0000.09021.11
5.6.80.0070.08020.49
5.6.70.0130.08020.32
5.6.60.0000.07720.42
5.6.50.0070.08020.54
5.6.40.0100.07020.45
5.6.30.0130.06020.52
5.6.20.0030.08320.39
5.6.10.0100.08320.43
5.6.00.0170.07020.28
5.5.380.0000.05020.45
5.5.370.0130.03320.32
5.5.360.0100.03720.55
5.5.350.0130.03320.34
5.5.340.0000.04320.82
5.5.330.0000.07720.91
5.5.320.0070.07020.89
5.5.310.0070.05320.80
5.5.300.0130.06320.88
5.5.290.0170.07020.88
5.5.280.0070.05720.92
5.5.270.0000.07320.84
5.5.260.0130.07020.81
5.5.250.0000.05320.73
5.5.240.0200.08320.27
5.5.230.0100.07720.13
5.5.220.0100.04320.01
5.5.210.0130.07320.23
5.5.200.0030.05720.18
5.5.190.0030.08320.17
5.5.180.0100.08020.10
5.5.160.0100.04020.15
5.5.150.0070.08020.22
5.5.140.0070.08320.16
5.5.130.0070.04719.98
5.5.120.0100.03720.14
5.5.110.0000.08320.09
5.5.100.0100.04720.06
5.5.90.0100.06720.06
5.5.80.0000.04720.05
5.5.70.0100.05020.09
5.5.60.0170.06720.05
5.5.50.0170.07320.15
5.5.40.0100.07720.04
5.5.30.0030.05720.13
5.5.20.0070.08319.95
5.5.10.0100.07720.12
5.5.00.0100.05019.98
5.4.450.0100.04719.20
5.4.440.0100.07319.37
5.4.430.0130.06319.29
5.4.420.0100.04019.46
5.4.410.0070.07019.29
5.4.400.0000.05719.11
5.4.390.0100.05718.98
5.4.380.0170.03319.14
5.4.370.0130.07318.98
5.4.360.0130.07319.14
5.4.350.0070.07719.05
5.4.340.0100.05319.16
5.4.320.0070.07319.05
5.4.310.0130.05718.98
5.4.300.0130.05019.11
5.4.290.0070.04319.02
5.4.280.0070.08019.14
5.4.270.0100.07019.05
5.4.260.0070.07719.11
5.4.250.0030.08019.11
5.4.240.0000.05719.05
5.4.230.0070.07018.77
5.4.220.0030.06319.04
5.4.210.0100.07319.02
5.4.200.0100.07719.23
5.4.190.0070.07319.05
5.4.180.0100.03718.93
5.4.170.0130.05719.02
5.4.160.0130.06718.76
5.4.150.0170.06719.02
5.4.140.0170.03316.29
5.4.130.0030.07316.27
5.4.120.0030.07316.36
5.4.110.0100.07016.34
5.4.100.0100.07016.42
5.4.90.0070.07716.26
5.4.80.0030.07016.20
5.4.70.0130.07716.42
5.4.60.0030.07316.38
5.4.50.0030.07716.31
5.4.40.0070.07016.23
5.4.30.0130.06016.20
5.4.20.0000.04716.30
5.4.10.0000.08016.32
5.4.00.0130.06315.70
5.3.290.0200.03014.62
5.3.280.0070.06714.50
5.3.270.0070.06014.45
5.3.260.0070.06714.51
5.3.250.0100.07014.47
5.3.240.0070.07314.57
5.3.230.0170.03714.45
5.3.220.0030.08014.38
5.3.210.0100.04714.55
5.3.200.0070.04714.42
5.3.190.0100.05314.54
5.3.180.0070.04014.56
5.3.170.0070.05314.56
5.3.160.0130.05314.41
5.3.150.0200.05714.55
5.3.140.0070.07014.51
5.3.130.0030.07014.48
5.3.120.0030.05314.52
5.3.110.0030.04014.50
5.3.100.0130.07014.00
5.3.90.0070.07314.01
5.3.80.0100.05313.88
5.3.70.0070.07313.97
5.3.60.0030.06713.95
5.3.50.0000.08013.70
5.3.40.0070.04013.93
5.3.30.0100.04313.68
5.3.20.0000.07713.55
5.3.10.0070.04313.66
5.3.00.0030.04313.61
5.2.170.0030.03712.20
5.2.160.0070.05712.20
5.2.150.0100.03712.20
5.2.140.0070.06312.20
5.2.130.0100.04712.20
5.2.120.0070.04012.20
5.2.110.0070.06012.20
5.2.100.0130.05312.20
5.2.90.0030.05012.20
5.2.80.0030.05012.20
5.2.70.0130.05712.20
5.2.60.0070.06312.20
5.2.50.0030.05712.20
5.2.40.0070.03312.20
5.2.30.0030.05712.20
5.2.20.0070.06712.20
5.2.10.0100.03312.20
5.2.00.0000.03312.20
5.1.60.0070.05012.20
5.1.50.0030.05012.20
5.1.40.0070.04712.20
5.1.30.0070.06012.20
5.1.20.0100.05012.20
5.1.10.0030.05312.20
5.1.00.0070.04712.20
5.0.50.0030.04712.20
5.0.40.0070.03312.20
5.0.30.0030.06012.20
5.0.20.0030.03712.20
5.0.10.0030.04312.20
5.0.00.0070.04712.20
4.4.90.0000.03712.20
4.4.80.0000.02712.20
4.4.70.0100.02712.20
4.4.60.0070.01712.20
4.4.50.0000.03312.20
4.4.40.0000.05312.20
4.4.30.0070.03012.20
4.4.20.0000.04012.20
4.4.10.0030.03012.20
4.4.00.0000.05312.20
4.3.110.0000.02312.20
4.3.100.0070.03012.20
4.3.90.0030.02712.20
4.3.80.0070.04712.20
4.3.70.0000.02012.20
4.3.60.0030.02012.20
4.3.50.0000.02312.20
4.3.40.0030.02312.20
4.3.30.0000.03312.20
4.3.20.0000.02312.20
4.3.10.0000.01712.20
4.3.00.0000.02312.20

preferences:
47.9 ms | 401 KiB | 5 Q