3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = 'abc<abc>abc> => cbc<bbc>cbc>'; $str = preg_replace_callback('/(<)[^>]++>|.++/', function ($m) { return str_replace($m, 'a', isset($m[1]) ? 'b' : 'c', $m[0]); }, $str); echo $str;

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)
8.3.60.0120.00316.38
8.3.50.0070.01417.56
8.3.40.0120.00319.20
8.3.30.0180.00318.85
8.3.20.0060.00318.86
8.3.10.0080.00020.86
8.3.00.0060.00319.50
8.2.180.0090.00916.75
8.2.170.0080.00622.96
8.2.160.0070.00719.12
8.2.150.0080.00024.18
8.2.140.0070.00724.66
8.2.130.0080.00026.16
8.2.120.0040.00419.98
8.2.110.0030.00721.14
8.2.100.0040.00818.03
8.2.90.0030.00619.21
8.2.80.0000.00818.16
8.2.70.0060.00317.75
8.2.60.0080.00018.05
8.2.50.0030.00618.07
8.2.40.0050.00318.34
8.2.30.0040.00418.21
8.2.20.0040.00417.93
8.2.10.0080.00017.89
8.2.00.0080.00018.00
8.1.280.0110.00425.92
8.1.270.0150.00323.99
8.1.260.0080.00026.35
8.1.250.0090.00028.09
8.1.240.0070.00320.77
8.1.230.0090.00321.04
8.1.220.0080.00017.74
8.1.210.0000.00818.88
8.1.200.0030.00717.35
8.1.190.0080.00017.54
8.1.180.0030.00518.10
8.1.170.0050.00318.82
8.1.160.0000.00718.95
8.1.150.0050.00318.86
8.1.140.0000.00717.61
8.1.130.0030.00317.61
8.1.120.0020.00517.62
8.1.110.0040.00417.61
8.1.100.0030.00517.65
8.1.90.0040.00417.57
8.1.80.0000.00817.52
8.1.70.0000.00717.52
8.1.60.0040.00417.71
8.1.50.0030.00617.66
8.1.40.0000.00817.56
8.1.30.0050.00217.70
8.1.20.0000.00817.84
8.1.10.0080.00017.59
8.1.00.0000.00817.55
8.0.300.0040.00419.98
8.0.290.0000.00716.88
8.0.280.0000.00718.38
8.0.270.0030.00317.35
8.0.260.0000.00716.97
8.0.250.0040.00416.99
8.0.240.0000.00717.01
8.0.230.0000.00717.02
8.0.220.0080.00016.98
8.0.210.0000.00716.91
8.0.200.0000.00617.09
8.0.190.0070.00316.95
8.0.180.0070.00317.08
8.0.170.0090.00017.05
8.0.160.0070.00017.03
8.0.150.0040.00416.96
8.0.140.0110.00317.00
8.0.130.0030.00313.46
8.0.120.0040.00416.99
8.0.110.0040.00416.92
8.0.100.0000.00817.12
8.0.90.0030.00516.94
8.0.80.0070.01017.05
8.0.70.0000.00716.84
8.0.60.0000.00716.94
8.0.50.0000.00716.81
8.0.30.0130.01017.31
8.0.20.0110.01017.46
8.0.10.0040.00417.22
8.0.00.0100.01016.88
7.4.330.0000.00513.23
7.4.320.0060.00316.71
7.4.300.0030.00316.70
7.4.290.0000.00716.73
7.4.280.0090.00016.78
7.4.270.0030.00316.82
7.4.260.0000.00813.44
7.4.250.0090.00016.84
7.4.240.0070.00016.71
7.4.230.0030.00316.92
7.4.220.0090.00916.82
7.4.210.0090.00716.76
7.4.200.0030.00316.55
7.4.190.0000.00716.58
7.4.160.0060.00916.48
7.4.150.0060.01216.91
7.4.140.0100.01216.63
7.4.130.0080.00916.76
7.4.120.0110.00616.85
7.4.110.0030.01416.54
7.4.100.0040.01516.77
7.4.90.0110.01116.66
7.4.80.0140.00316.56
7.4.70.0110.00616.54
7.4.60.0070.01016.57
7.4.50.0030.00316.68
7.4.40.0060.00916.41
7.4.30.0000.01716.73
7.4.00.0060.01115.17
7.3.330.0030.00313.56
7.3.320.0000.00513.48
7.3.310.0070.00016.53
7.3.300.0030.00316.52
7.3.290.0100.00716.59
7.3.280.0080.00916.51
7.3.270.0090.00916.78
7.3.260.0040.01416.56
7.3.250.0140.00616.55
7.3.240.0070.01016.54
7.3.230.0060.01616.75
7.3.210.0030.01416.48
7.3.200.0150.00919.39
7.3.190.0110.01116.57
7.3.180.0030.01216.54
7.3.170.0090.00916.57
7.3.160.0100.00516.75
7.3.120.0100.00514.70
7.3.110.0070.01314.95
7.3.100.0120.00315.00
7.3.90.0060.00315.05
7.3.80.0070.00714.91
7.3.70.0030.01214.86
7.3.60.0000.01015.17
7.3.50.0060.00915.13
7.3.40.0110.00415.10
7.3.30.0130.00315.01
7.3.20.0060.00617.02
7.3.10.0040.00416.77
7.3.00.0000.01417.00
7.2.330.0090.00916.75
7.2.320.0100.00716.64
7.2.310.0160.00616.98
7.2.300.0130.00316.67
7.2.290.0060.01017.00
7.2.250.0030.01814.94
7.2.240.0060.01615.23
7.2.230.0060.00315.35
7.2.220.0060.00915.29
7.2.210.0040.01115.27
7.2.200.0040.01515.25
7.2.190.0060.00615.28
7.2.180.0080.01115.24
7.2.170.0120.00615.44
7.1.330.0000.01116.02
7.1.320.0040.00816.13
7.1.310.0000.01816.22
7.1.300.0080.00416.06
7.1.290.0030.01315.83
7.1.280.0070.01016.14
7.1.270.0070.01016.09
7.1.260.0030.01016.04
7.1.200.0000.01316.08
7.1.70.0080.00017.01
7.1.60.0000.01117.44
7.1.50.0000.02217.13
7.1.00.0070.06722.47
7.0.200.0030.01517.00
7.0.140.0030.07022.09
7.0.120.0030.07321.96
7.0.60.0100.05019.83
7.0.50.0030.05017.89
7.0.40.0100.04720.11
7.0.30.0170.06020.14
7.0.20.0200.05720.16
7.0.10.0230.07720.34
7.0.00.0130.05020.31
5.6.280.0000.07721.07
5.6.210.0070.05720.65
5.6.200.0000.06718.15
5.6.190.0070.08320.64
5.6.180.4100.04320.75
5.6.170.0230.07320.48
5.6.160.0000.05320.54
5.6.150.0030.08318.13
5.6.140.0100.08018.19
5.6.130.0030.08318.11
5.6.120.0200.07021.13
5.6.110.0070.08721.04
5.6.100.0130.05021.08
5.6.90.0230.07021.10
5.6.80.0100.03320.44
5.6.70.3300.03320.52
5.5.350.0200.07020.44
5.5.340.0100.04718.04
5.5.330.0170.08020.41
5.5.320.0570.06720.35
5.5.310.0270.06320.41
5.5.300.0100.08317.91
5.5.290.0100.06318.06
5.5.280.0030.05320.89
5.5.270.0000.04720.93
5.5.260.0030.08720.87
5.5.250.0070.06020.68
5.5.240.0100.04020.16
5.4.450.0030.05019.47
5.4.440.0100.07719.53
5.4.430.0000.04319.47
5.4.420.0000.07019.59
5.4.410.0070.08019.34
5.4.400.0070.06318.88
5.4.390.0030.04719.26
5.4.380.0000.04718.93
5.4.370.0070.04019.25
5.4.360.0130.07319.15
5.4.350.0030.03718.98
5.4.340.0030.05018.87
5.4.320.0100.04019.20
5.4.310.0070.06719.16
5.4.300.0030.07018.91
5.4.290.0100.04318.97
5.4.280.0070.04718.97
5.4.270.0070.07019.16
5.4.260.0100.07319.00
5.4.250.0000.08019.14
5.4.240.0130.04318.93
5.4.230.0130.07018.84
5.4.220.0070.08018.84
5.4.210.0070.06019.15
5.4.200.0070.04319.24
5.4.190.0030.04018.84
5.4.180.0030.07019.16
5.4.170.0030.06719.13
5.4.160.0000.04019.13
5.4.150.0000.04319.23
5.4.140.0030.06016.40
5.4.130.0070.07716.38
5.4.120.0070.07316.35
5.4.110.0100.07316.45
5.4.100.0030.06716.45
5.4.90.0100.07316.29
5.4.80.0030.05716.63
5.4.70.0030.03716.29
5.4.60.0070.06716.40
5.4.50.0100.05016.40
5.4.40.0030.04016.37
5.4.30.0030.04316.39
5.4.20.0070.04016.27
5.4.10.0070.08016.36
5.4.00.0070.06315.73
5.3.290.0130.04314.66
5.3.280.0070.04014.59
5.3.270.0030.07714.60
5.3.260.0030.07014.65
5.3.250.0030.06714.75
5.3.240.0070.04014.64
5.3.230.0100.06014.75
5.3.220.0100.07314.71
5.3.210.0030.05714.59
5.3.200.0070.06314.72
5.3.190.0030.08014.48
5.3.180.0100.06314.59
5.3.170.0100.06314.58
5.3.160.0030.04314.70
5.3.150.0100.03714.70
5.3.140.0100.07314.56
5.3.130.0030.08314.55
5.3.120.0070.04014.54
5.3.110.0100.04014.43
5.3.100.0100.07314.07
5.3.90.0100.06314.03
5.3.80.0070.06013.98
5.3.70.0070.07314.02
5.3.60.0100.05714.15
5.3.50.0200.06013.94
5.3.40.0200.06014.04
5.3.30.0030.07313.90
5.3.20.0030.07013.58
5.3.10.0170.06013.68
5.3.00.0030.04713.69
5.2.170.0030.03711.08
5.2.160.0070.06311.11
5.2.150.0100.05311.14
5.2.140.0070.04011.13
5.2.130.0030.06011.03
5.2.120.0070.05310.92
5.2.110.0030.03010.99
5.2.100.0000.04010.99
5.2.90.0030.04711.05
5.2.80.0030.05011.02
5.2.70.0130.05011.08
5.2.60.0100.05710.97
5.2.50.0130.05310.89
5.2.40.0030.05310.93
5.2.30.0030.04010.90
5.2.20.0100.05710.90
5.2.10.0070.03710.71
5.2.00.0000.03310.70
5.1.60.0070.02710.04
5.1.50.0030.0309.98
5.1.40.0070.04710.05
5.1.30.0030.05310.36
5.1.20.0030.05710.36
5.1.10.0070.03710.06
5.1.00.0030.04010.07
5.0.50.0030.0238.54
5.0.40.0030.0438.50
5.0.30.0030.0438.26
5.0.20.0030.0308.26
5.0.10.0000.0238.32
5.0.00.0000.0338.26
4.4.90.0030.0338.26
4.4.80.0030.0338.26
4.4.70.0000.0378.26
4.4.60.0030.0208.26
4.4.50.0000.0378.26
4.4.40.0000.0308.26
4.4.30.0000.0208.26
4.4.20.0000.0378.26
4.4.10.0000.0238.26
4.4.00.0070.0508.26
4.3.110.0070.0238.26
4.3.100.0000.0278.26
4.3.90.0030.0138.26
4.3.80.0000.0578.26
4.3.70.0000.0178.26
4.3.60.0030.0178.26
4.3.50.0100.0208.26
4.3.40.0100.0478.26
4.3.30.0000.0378.26
4.3.20.0030.0378.26
4.3.10.0000.0308.26
4.3.00.0030.0378.26

preferences:
41.45 ms | 401 KiB | 5 Q