3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo preg_replace('/.*?\b(dog)\b.*?(?!(?1)|$)/', '<$0>', 'where my dog is now?');

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)
8.3.60.0070.01318.30
8.3.50.0110.00721.09
8.3.40.0140.00018.91
8.3.30.0170.00018.96
8.3.20.0040.00420.18
8.3.10.0040.00421.96
8.3.00.0050.00322.45
8.2.180.0090.00918.29
8.2.170.0070.00722.96
8.2.160.0070.00720.52
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0110.00026.16
8.2.120.0060.00319.63
8.2.110.0070.00320.52
8.2.100.0070.00417.72
8.2.90.0040.00419.07
8.2.80.0040.00419.28
8.2.70.0000.00817.63
8.2.60.0080.00017.80
8.2.50.0000.00818.07
8.2.40.0080.00018.09
8.2.30.0070.00317.96
8.2.20.0060.00317.60
8.2.10.0050.00317.70
8.2.00.0070.00017.68
8.1.280.0070.01325.92
8.1.270.0060.00320.57
8.1.260.0020.00526.35
8.1.250.0000.00728.09
8.1.240.0070.00322.04
8.1.230.0040.00722.05
8.1.220.0090.00017.74
8.1.210.0080.00018.77
8.1.200.0030.00617.23
8.1.190.0050.00317.30
8.1.180.0040.00420.16
8.1.170.0000.00818.65
8.1.160.0040.00422.09
8.1.150.0020.00518.64
8.1.140.0080.00017.40
8.1.130.0000.00717.68
8.1.120.0030.00317.46
8.1.110.0040.00417.48
8.1.100.0070.00017.54
8.1.90.0060.00317.39
8.1.80.0040.00317.46
8.1.70.0030.00317.36
8.1.60.0000.00817.61
8.1.50.0080.00017.43
8.1.40.0020.00517.56
8.1.30.0080.00017.60
8.1.20.0000.00817.61
8.1.10.0040.00417.52
8.1.00.0030.00617.49
8.0.300.0040.00418.77
8.0.290.0040.00416.79
8.0.280.0070.00018.39
8.0.270.0030.00317.11
8.0.260.0000.00716.76
8.0.250.0000.00717.07
8.0.240.0000.00817.09
8.0.230.0070.00016.99
8.0.220.0000.00716.92
8.0.210.0000.00716.79
8.0.200.0070.00016.87
8.0.190.0060.00316.96
8.0.180.0040.00416.83
8.0.170.0050.00316.75
8.0.160.0000.00716.89
8.0.150.0040.00416.88
8.0.140.0040.00416.93
8.0.130.0000.00613.37
8.0.120.0090.00016.80
8.0.110.0000.00816.82
8.0.100.0040.00316.76
8.0.90.0030.00316.75
8.0.80.0080.00816.77
8.0.70.0000.00816.96
8.0.60.0000.00816.91
8.0.50.0050.00316.75
8.0.30.0140.00917.23
8.0.20.0090.01017.40
8.0.10.0040.00417.02
8.0.00.0080.00816.63
7.4.330.0050.00015.00
7.4.320.0000.00616.64
7.4.300.0070.00016.69
7.4.290.0000.00716.66
7.4.280.0070.00016.65
7.4.270.0050.00316.53
7.4.260.0030.00316.57
7.4.250.0000.00716.53
7.4.240.0000.00716.60
7.4.230.0030.00316.70
7.4.220.0130.00816.58
7.4.210.0060.00916.70
7.4.200.0030.00316.45
7.4.190.0030.00316.68
7.4.160.0000.01916.39
7.4.150.0110.00717.40
7.4.140.0120.00917.86
7.4.130.0090.01016.52
7.4.120.0110.00916.56
7.4.110.0150.00716.59
7.4.100.0050.01616.70
7.4.90.0100.00916.73
7.4.80.0030.01819.39
7.4.70.0160.00616.56
7.4.60.0100.00716.47
7.4.50.0050.00316.55
7.4.40.0090.00622.77
7.4.30.0040.01316.50
7.4.00.0070.01015.11
7.3.330.0000.00513.25
7.3.320.0000.00513.13
7.3.310.0050.00216.28
7.3.300.0030.00316.11
7.3.290.0040.01116.34
7.3.280.0090.00716.25
7.3.270.0090.00617.40
7.3.260.0140.00316.72
7.3.250.0100.01116.55
7.3.240.0080.00816.67
7.3.230.0080.00916.68
7.3.210.0140.00316.34
7.3.200.0000.01619.39
7.3.190.0110.00916.60
7.3.180.0060.00916.59
7.3.170.0090.00616.72
7.3.160.0060.01016.34
7.3.120.0110.00414.84
7.2.330.0110.00716.64
7.2.320.0030.01416.49
7.2.310.0060.01616.55
7.2.300.0080.00816.78
7.2.290.0130.00316.52
7.1.70.0030.01717.34
7.1.60.0160.00619.82
7.1.50.0080.00316.77
7.1.00.0030.04022.45
7.0.200.0000.01016.90
7.0.140.0130.06722.00
7.0.110.0500.03720.08
7.0.100.0470.03019.86
7.0.90.0430.03320.05
7.0.80.0430.07019.95
7.0.70.0470.04019.90
7.0.60.0470.03719.92
7.0.50.0470.04719.85
7.0.40.0030.04019.86
7.0.30.0130.02719.67
7.0.20.0130.04719.86
7.0.10.0070.04019.78
7.0.00.0030.04719.86
5.6.280.0000.07721.00
5.6.260.0030.04020.59
5.6.250.0130.07020.65
5.6.240.0030.05020.68
5.6.230.0030.04320.66
5.6.220.0100.03320.52
5.6.210.0100.06020.72
5.6.200.0070.03320.70
5.6.190.0030.04020.56
5.6.180.0100.04320.63
5.6.170.0000.04320.58
5.6.160.0030.04020.58
5.6.150.0070.03720.63
5.6.140.0030.04320.60
5.6.130.0100.03020.69
5.6.120.0100.05720.54
5.6.110.0070.06320.66
5.6.100.0100.04020.60
5.6.90.0130.02720.63
5.6.80.0000.05020.02
5.6.70.0070.04020.00
5.6.60.0030.04019.93
5.6.50.0030.03319.84
5.6.40.0100.04020.05
5.6.30.0000.04019.94
5.6.20.0030.03319.96
5.6.10.0030.03320.16
5.6.00.0030.03319.82
5.5.380.0000.05017.62
5.5.370.0000.05017.50
5.5.360.0100.04017.45
5.5.350.0030.04017.77
5.5.340.0030.03717.85
5.5.330.0070.04318.25
5.5.320.0030.03718.01
5.5.310.0000.06018.09
5.5.300.0100.03317.98
5.5.290.0070.04017.79
5.5.280.0030.04018.09
5.5.270.0070.05017.85
5.5.260.0000.07718.15
5.5.250.0000.04017.96
5.5.240.0030.04317.23
5.5.230.0030.07317.47
5.5.220.0030.03017.23
5.5.210.0030.03717.24
5.5.200.0070.03717.45
5.5.190.0100.02717.48
5.5.180.0070.03317.36
5.5.160.0130.03317.21
5.5.150.0030.03717.47
5.5.140.0030.03317.52
5.5.130.0070.03717.47
5.5.120.0000.03717.50
5.5.110.0030.04017.18
5.5.100.0070.03017.15
5.5.90.0030.03017.01
5.5.80.0000.03317.35
5.5.70.0030.03017.09
5.5.60.0030.03317.24
5.5.50.0000.03317.09
5.5.40.0030.03017.25
5.5.30.0030.03017.00
5.5.20.0030.03017.49
5.5.10.0070.02717.10
5.5.00.0000.03317.39
5.4.450.0030.04019.36
5.4.440.0100.04719.33
5.4.430.0070.04719.34
5.4.420.0070.04319.42
5.4.410.0000.05019.44
5.4.400.0030.06019.12
5.4.390.0000.05719.20
5.4.380.0000.03319.17
5.4.370.0070.03718.95
5.4.360.0000.04019.03
5.4.350.0000.04319.02
5.4.340.0070.03019.07
5.4.320.0070.03019.12
5.4.310.0070.02719.00
5.4.300.0030.03019.11
5.4.290.0030.03318.95
5.4.280.0000.03718.96
5.4.270.0000.03318.98
5.4.260.0030.03019.16
5.4.250.0030.03319.24
5.4.240.0000.03319.18
5.4.230.0000.03319.17
5.4.220.0000.03319.09
5.4.210.0000.03719.17
5.4.200.0000.03318.97
5.4.190.0000.03318.95
5.4.180.0000.03318.97
5.4.170.0070.03318.99
5.4.160.0100.02318.98
5.4.150.0000.03719.08
5.4.140.0070.02716.57
5.4.130.0070.02716.17
5.4.120.0070.02716.24
5.4.110.0030.03016.28
5.4.100.0000.03316.37
5.4.90.0030.02716.43
5.4.80.0000.03016.54
5.4.70.0030.02716.36
5.4.60.0070.03716.50
5.4.50.0000.03316.35
5.4.40.0070.02716.31
5.4.30.0030.04016.20
5.4.20.0030.05316.47
5.4.10.0070.06716.34
5.4.00.0030.06015.91
5.3.290.0030.04014.61
5.3.280.0070.02714.45
5.3.270.0030.03014.50
5.3.260.0030.03014.46
5.3.250.0030.03314.49
5.3.240.0030.03014.43
5.3.230.0030.03014.69
5.3.220.0070.02714.67
5.3.210.0000.03714.62
5.3.200.0000.03314.62
5.3.190.0000.03314.50
5.3.180.0030.03014.65
5.3.170.0070.02714.38
5.3.160.0000.03714.43
5.3.150.0030.03314.50
5.3.140.0030.03014.62
5.3.130.0030.06714.61
5.3.120.0130.06014.33
5.3.110.0000.04714.64
5.3.100.0030.04313.91
5.3.90.0030.04713.95
5.3.80.0100.03013.91
5.3.70.0030.03013.94
5.3.60.0030.04713.88
5.3.50.0030.03013.87
5.3.40.0100.03314.01
5.3.30.0070.05713.83
5.3.20.0030.03313.74
5.3.10.0000.05313.58
5.3.00.0070.05013.52
5.2.170.0000.02712.22
5.2.160.0000.07012.22
5.2.150.0000.04012.22
5.2.140.0030.02712.22
5.2.130.0030.04712.22
5.2.120.0030.03012.22
5.2.110.0000.05712.22
5.2.100.0030.02712.22
5.2.90.0030.04312.22
5.2.80.0030.02712.22
5.2.70.0030.02712.22
5.2.60.0000.03012.22
5.2.50.0070.06312.22
5.2.40.0070.02712.22
5.2.30.0000.05012.22
5.2.20.0000.04712.22
5.2.10.0030.02712.22
5.2.00.0030.03012.22
5.1.60.0030.02012.22
5.1.50.0030.02012.22
5.1.40.0000.03712.22
5.1.30.0030.02312.22
5.1.20.0030.02312.22
5.1.10.0000.03312.22
5.1.00.0030.04012.22
5.0.50.0070.01712.22
5.0.40.0070.01312.22
5.0.30.0000.03012.22
5.0.20.0000.02012.22
5.0.10.0000.02312.22
5.0.00.0030.04012.22
4.4.90.0030.03012.22
4.4.80.0000.01312.22
4.4.70.0000.01312.22
4.4.60.0030.01712.22
4.4.50.0000.01712.22
4.4.40.0000.02312.22
4.4.30.0030.03012.22
4.4.20.0030.01312.22
4.4.10.0070.01312.22
4.4.00.0000.02712.22
4.3.110.0030.01312.22
4.3.100.0000.01312.22
4.3.90.0000.02012.22
4.3.80.0000.02312.22
4.3.70.0000.01312.22
4.3.60.0030.01012.22
4.3.50.0030.01012.22
4.3.40.0000.02012.22
4.3.30.0000.01712.22
4.3.20.0000.01712.22
4.3.10.0000.01712.22
4.3.00.0030.01712.22

preferences:
36.68 ms | 401 KiB | 5 Q