3v4l.org

run code in 300+ PHP versions simultaneously
<?php $strings = ["folders/folder1/folder5/../../folder2", "folders/folder1/../../../folder2", "folders/folder1/folder5/../folder2"]; foreach ($strings as $url) { $count = 0; do { $url = preg_replace('~(?<![^/])(?!\.\.(?![^/]))[^/]+/\.\.(?:/|$)~', '', $url, -1, $count); } while ($count > 0); echo "$url" . PHP_EOL; }

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)
8.4.120.0110.00820.93
8.4.110.0140.00720.65
8.4.100.0150.00618.57
8.4.90.0160.00420.28
8.4.80.0090.00619.77
8.4.70.0100.01118.12
8.4.60.0100.01118.44
8.4.50.0050.00618.04
8.4.40.0120.00419.47
8.4.30.0030.00618.59
8.4.20.0160.00318.82
8.4.10.0100.01020.62
8.3.250.0100.00917.10
8.3.240.0120.00916.87
8.3.230.0080.00516.66
8.3.220.0140.00618.92
8.3.210.0130.00616.86
8.3.200.0040.00416.71
8.3.190.0030.00616.93
8.3.180.0100.00816.86
8.3.170.0070.00016.79
8.3.160.0140.00416.87
8.3.150.0100.01017.33
8.3.140.0040.00416.82
8.3.130.0080.00018.27
8.3.120.0100.01018.80
8.3.110.0080.00016.75
8.3.100.0030.00624.06
8.3.90.0060.00326.77
8.3.80.0000.00918.55
8.3.70.0100.00618.55
8.3.60.0120.00318.43
8.3.50.0030.01418.27
8.3.40.0190.00318.63
8.3.30.0110.00418.91
8.3.20.0080.00024.18
8.3.10.0040.00424.66
8.3.00.0060.00326.16
8.2.290.0040.00520.44
8.2.280.0100.00618.53
8.2.270.0130.00716.48
8.2.260.0000.00920.70
8.2.250.0080.00018.36
8.2.240.0040.00416.92
8.2.230.0160.00320.94
8.2.220.0040.00437.54
8.2.210.0050.00326.77
8.2.200.0060.00316.63
8.2.190.0110.00316.63
8.2.180.0100.00325.92
8.2.170.0070.00719.09
8.2.160.0100.00322.96
8.2.150.0080.00025.66
8.2.140.0090.00024.66
8.2.130.0040.00426.16
8.2.120.0090.00019.38
8.2.110.0060.00319.17
8.2.100.0110.00018.03
8.2.90.0030.00918.00
8.2.80.0000.00819.09
8.2.70.0060.00317.93
8.2.60.0000.00817.97
8.2.50.0090.00018.10
8.2.40.0050.00321.09
8.2.30.0020.00519.20
8.2.20.0000.01018.17
8.2.10.0000.00819.25
8.2.00.0050.00319.33
8.1.330.0130.00722.16
8.1.320.0100.00816.46
8.1.310.0130.00318.44
8.1.300.0050.00316.56
8.1.290.0060.00330.84
8.1.280.0100.00725.92
8.1.270.0040.00423.97
8.1.260.0030.00626.35
8.1.250.0090.00028.09
8.1.240.0090.00021.00
8.1.230.0110.00017.77
8.1.220.0040.00417.79
8.1.210.0080.00018.77
8.1.200.0070.00417.47
8.1.190.0030.00617.35
8.1.180.0000.00818.10
8.1.170.0000.00918.63
8.1.160.0030.00620.77
8.1.150.0040.00418.84
8.1.140.0040.00420.75
8.1.130.0000.00720.16
8.1.120.0000.00817.65
8.1.110.0040.00417.61
8.1.100.0040.00717.59
8.1.90.0000.00817.62
8.1.80.0000.00917.63
8.1.70.0000.00717.59
8.1.60.0000.00817.77
8.1.50.0000.00917.62
8.1.40.0000.00817.70
8.1.30.0040.00417.71
8.1.20.0040.00417.75
8.1.10.0030.00617.71
8.1.00.0000.00817.59
8.0.300.0000.00818.77
8.0.290.0040.00416.63
8.0.280.0030.00318.45
8.0.270.0020.00516.98
8.0.260.0000.00618.54
8.0.250.0030.00317.08
8.0.240.0060.00017.00
8.0.230.0070.00017.09
8.0.220.0030.00317.06
8.0.210.0040.00416.96
8.0.200.0030.00317.18
8.0.190.0040.00417.07
8.0.180.0040.00417.03
8.0.170.0080.00017.07
8.0.160.0000.00816.98
8.0.150.0070.00016.91
8.0.140.0000.00917.00
8.0.130.0050.00213.56
8.0.120.0040.00416.95
8.0.110.0000.00717.06
8.0.100.0050.00216.92
8.0.90.0050.00216.93
8.0.80.0050.01016.97
8.0.70.0040.00416.92
8.0.60.0070.00017.12
8.0.50.0070.00016.86
8.0.30.0120.00916.97
8.0.20.0090.00617.10
8.0.10.0110.00617.13
8.0.00.0160.00916.93
7.4.330.0000.00415.55
7.4.320.0060.00016.77
7.4.300.0030.00316.80
7.4.290.0040.00416.68
7.4.280.0000.00716.88
7.4.270.0080.00016.80
7.4.260.0070.00013.50
7.4.250.0040.00416.68
7.4.240.0020.00516.70
7.4.230.0030.00316.86
7.4.220.0000.00816.92
7.4.210.0100.00516.86
7.4.200.0040.00416.94
7.4.160.0030.01216.55
7.4.150.0170.00716.67
7.4.140.0090.00616.54
7.4.130.0060.00916.53
7.4.120.0060.00916.58
7.4.110.0050.00916.70
7.4.100.0060.00916.73
7.4.90.0170.00616.76
7.4.80.0160.00816.61
7.4.70.0170.00716.74
7.4.60.0150.01116.52
7.4.50.0130.01316.57
7.4.40.0160.00816.55
7.4.30.0170.00316.32
7.4.20.0160.00316.48
7.4.10.0220.00516.42
7.4.00.0090.01416.35
7.3.330.0000.00716.20
7.3.320.0000.00513.17
7.3.310.0070.00016.56
7.3.300.0000.00716.42
7.3.290.0100.00816.46
7.3.280.0100.00716.29
7.3.270.0160.00016.26
7.3.260.0110.00616.25
7.3.250.0070.01316.10
7.3.240.0170.00416.30
7.3.230.0160.00516.24
7.3.220.0090.00916.29
7.3.210.0130.00916.21
7.3.200.0080.01316.27
7.3.190.0250.00016.32
7.3.180.0130.00916.28
7.3.170.0150.00916.38
7.3.160.0200.00516.42
7.3.150.0080.01216.21
7.3.140.0190.00216.16
7.3.130.0180.00616.36
7.3.120.0120.01016.34
7.3.110.0140.00616.27
7.3.100.0170.01116.23
7.3.90.0160.00816.55
7.3.80.0100.01416.31
7.3.70.0140.01016.34
7.3.60.0250.00416.37
7.3.50.0230.00716.39
7.3.40.0110.01116.44
7.3.30.0120.00716.27
7.3.20.0190.00016.41
7.3.10.0240.00016.38
7.3.00.0140.01016.44

preferences:
28.79 ms | 403 KiB | 5 Q