3v4l.org

run code in 300+ PHP versions simultaneously
<?php function snake($k,$y,$str1,$str2){ $x = $y - $k; while($x < mb_strlen($str1) && $y < mb_strlen($str2) && $str1[$x] == $str2[$y]){ $x++; $y++; } return $y; } function edit_distance_onp($str1, $str2){ $s1 = mb_strlen($str1) > mb_strlen($str2) ? $str2 : $str1; $s2 = mb_strlen($str1) > mb_strlen($str2) ? $str1 : $str2; $fp = array(); $x = 0; $y = 0; $k = 0; $p = 0; $offset = mb_strlen($s1) + 1; $delta = mb_strlen($s2) - mb_strlen($s1); for ($i = 0; $i < 100; $i++) $fp[$i] = -1; for ($p = 0; $fp[$delta + $offset] != mb_strlen($s2); $p++) { for($k = -$p; $k < $delta; $k++) $fp[$k + $offset] = snake($k, max($fp[$k-1+$offset] + 1, $fp[$k+1+$offset]), $s1, $s2); for($k = $delta + $p; $k > $delta; $k--) $fp[$k + $offset] = snake($k, max($fp[$k-1+$offset] + 1, $fp[$k+1+$offset]), $s1, $s2); $fp[$delta + $offset] = snake($delta, max($fp[$delta-1+$offset] + 1, $fp[$delta+1+$offset]), $s1, $s2); } return $delta + ($p - 1) * 2; } echo edit_distance_onp("qwerty","qweasd"); ?>

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)
8.3.60.0000.01418.18
8.3.50.0080.00821.99
8.3.40.0060.01218.86
8.3.30.0140.00019.04
8.3.20.0000.00720.16
8.3.10.0080.00023.65
8.3.00.0050.00319.38
8.2.180.0110.00416.88
8.2.170.0000.02122.96
8.2.160.0110.00720.44
8.2.150.0040.00424.18
8.2.140.0120.00324.66
8.2.130.0040.00426.16
8.2.120.0050.00322.26
8.2.110.0000.00922.25
8.2.100.0120.00017.91
8.2.90.0040.00419.13
8.2.80.0080.00017.97
8.2.70.0060.00317.75
8.2.60.0060.00318.16
8.2.50.0080.00419.25
8.2.40.0000.00818.28
8.2.30.0040.00418.16
8.2.20.0000.00817.84
8.2.10.0000.00718.23
8.2.00.0000.01117.70
8.1.280.0030.01025.92
8.1.270.0080.00023.88
8.1.260.0000.00826.35
8.1.250.0000.00728.09
8.1.240.0060.00323.91
8.1.230.0040.00719.11
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0000.00817.48
8.1.190.0060.00317.68
8.1.180.0040.00418.10
8.1.170.0000.00818.55
8.1.160.0000.00822.02
8.1.150.0040.00418.66
8.1.140.0040.00417.54
8.1.130.0080.00019.14
8.1.120.0000.00717.54
8.1.110.0050.00217.38
8.1.100.0070.00017.39
8.1.90.0030.00317.37
8.1.80.0040.00417.49
8.1.70.0000.00717.48
8.1.60.0050.00517.56
8.1.50.0000.00817.62
8.1.40.0030.00517.63
8.1.30.0050.00317.68
8.1.20.0040.00417.73
8.1.10.0000.00817.70
8.1.00.0030.00517.61
8.0.300.0040.00418.77
8.0.290.0040.00417.18
8.0.280.0050.00218.59
8.0.270.0030.00317.40
8.0.260.0030.00616.83
8.0.250.0000.00617.10
8.0.240.0000.00717.05
8.0.230.0030.00317.03
8.0.220.0030.00316.99
8.0.210.0070.00016.89
8.0.200.0030.00317.06
8.0.190.0050.00316.99
8.0.180.0000.00716.93
8.0.170.0040.00417.05
8.0.160.0070.00017.05
8.0.150.0040.00416.86
8.0.140.0070.00016.90
8.0.130.0060.00013.46
8.0.120.0080.00016.88
8.0.110.0040.00416.95
8.0.100.0000.00816.88
8.0.90.0000.00717.10
8.0.80.0000.02217.03
8.0.70.0040.00416.82
8.0.60.0040.00417.00
8.0.50.0040.00417.01
8.0.30.0150.00517.29
8.0.20.0130.00617.40
8.0.10.0040.00416.95
8.0.00.0090.00816.71
7.4.330.0050.00015.00
7.4.320.0000.00716.56
7.4.300.0000.00616.61
7.4.290.0030.00316.66
7.4.280.0040.00416.52
7.4.270.0000.00716.54
7.4.260.0070.00016.66
7.4.250.0040.00416.58
7.4.240.0020.00516.59
7.4.230.0000.00716.35
7.4.220.0090.00916.73
7.4.210.0080.00916.55
7.4.200.0050.00316.72
7.4.190.0040.00416.57
7.4.160.0070.01016.47
7.4.150.0090.00917.40
7.4.140.0100.01117.86
7.4.130.0120.00816.60
7.4.120.0120.00516.58
7.4.110.0160.00616.59
7.4.100.0110.01116.58
7.4.90.0100.00716.41
7.4.80.0190.00319.39
7.4.70.0110.00516.75
7.4.60.0060.01216.43
7.4.50.0030.00516.34
7.4.40.0070.00622.77
7.4.30.0090.00616.48
7.4.00.0070.00715.04
7.3.330.0000.00713.36
7.3.320.0000.00513.39
7.3.310.0000.00716.22
7.3.300.0030.00316.27
7.3.290.0080.01216.41
7.3.280.0090.00816.36
7.3.270.0140.00317.40
7.3.260.0100.00716.34
7.3.250.0040.01416.49
7.3.240.0060.01016.46
7.3.230.0100.00616.59
7.3.210.0060.01016.35
7.3.200.0060.01719.39
7.3.190.0060.01316.59
7.3.180.0070.01016.74
7.3.170.0080.00816.70
7.3.160.0060.01016.34
7.3.120.0070.00714.91
7.2.330.0140.00416.73
7.2.320.0090.01516.86
7.2.310.0030.01316.86
7.2.300.0090.01216.73
7.2.290.0080.00816.61
7.2.60.0070.00716.67
7.2.50.0000.01516.84
7.2.00.0060.00919.57
7.1.200.0030.01015.91
7.1.70.0030.01217.19
7.1.60.0130.01319.33
7.1.50.0040.01816.70
7.1.00.0030.07722.45
7.0.200.0090.00616.86
7.0.140.0070.07022.01
7.0.60.0070.08319.97
7.0.50.0070.03718.02
7.0.40.0170.03020.11
7.0.30.0470.06720.07
7.0.20.0270.05020.19
7.0.10.0230.05020.03
7.0.00.0100.09020.29
5.6.280.0100.06720.79
5.6.210.0130.05720.73
5.6.200.0100.07718.24
5.6.190.0070.08720.59
5.6.180.0300.06320.64
5.6.170.0270.08020.61
5.6.160.0070.05320.59
5.6.150.0070.08318.15
5.6.140.0070.03718.27
5.6.130.0070.04318.15
5.6.120.0030.08721.13
5.6.110.0130.07720.97
5.6.100.0130.07721.15
5.6.90.0000.08320.98
5.6.80.0070.07720.52
5.6.70.4400.04020.36
5.5.350.0030.08020.39
5.5.340.0070.04017.97
5.5.330.0070.07320.31
5.5.320.0400.04320.37
5.5.310.0130.04320.27
5.5.300.0070.07717.98
5.5.290.0030.05017.95
5.5.280.0130.08020.79
5.5.270.0130.03720.66
5.5.260.0100.06320.98
5.5.250.0200.06720.71
5.5.240.0070.04020.08
5.4.450.0430.05719.64
5.4.440.1300.06319.19
5.4.430.0970.05019.54
5.4.420.0230.06019.16
5.4.410.0730.05319.45
5.4.400.0770.06019.23
5.4.390.0770.04319.21
5.4.380.0270.06018.82
5.4.370.0400.05318.58
5.4.360.0230.05718.79
5.4.350.0200.06318.58
5.4.340.0400.04318.84
5.4.320.0070.03612.52
5.4.310.0050.03812.52
5.4.300.0050.03812.52
5.4.290.0060.03812.52
5.4.280.0100.05712.39
5.4.270.0120.05712.39
5.4.260.0060.06212.39
5.4.250.0100.05912.39
5.4.240.0090.03912.38
5.4.230.0090.04112.38
5.4.220.0110.03512.38
5.4.210.0070.03712.38
5.4.200.0080.04612.38
5.4.190.0170.04512.38
5.4.180.0080.04612.38
5.4.170.0130.06212.38
5.4.160.0110.05912.38
5.4.150.0220.07312.38
5.4.140.0200.08312.06
5.4.130.0150.08112.05
5.4.120.0180.06912.01
5.4.110.0270.07412.00
5.4.100.0150.07012.00
5.4.90.0100.07112.00
5.4.80.0110.09112.00
5.4.70.0070.06612.00
5.4.60.0130.05112.00
5.4.50.0090.03512.00
5.4.40.0050.04011.98
5.4.30.0110.03811.98
5.4.20.0070.03811.98
5.4.10.0050.03911.98
5.4.00.0090.03411.48
5.3.290.0070.04012.80
5.3.280.0080.03912.71
5.3.270.0100.04212.73
5.3.260.0110.04312.72
5.3.250.0080.04012.72
5.3.240.0070.04212.72
5.3.230.0040.04412.71
5.3.220.0100.03712.68
5.3.210.0060.04312.68
5.3.200.0080.03912.68
5.3.190.0100.04312.68
5.3.180.0350.07012.67
5.3.170.0170.06712.67
5.3.160.0560.06612.67
5.3.150.0240.07212.67
5.3.140.0230.06612.66
5.3.130.0200.08312.66
5.3.120.0050.04712.66
5.3.110.0130.03712.66
5.3.100.0070.04112.12
5.3.90.0150.06612.10
5.3.80.0110.03512.09
5.3.70.0110.03712.09
5.3.60.0050.04212.07
5.3.50.0080.03812.02
5.3.40.0070.04212.02
5.3.30.0080.04011.98
5.3.20.0090.05011.77
5.3.10.0050.03811.73
5.3.00.0030.04211.71
5.2.170.0060.0329.21
5.2.160.0060.0349.21
5.2.150.0060.0319.21
5.2.140.0040.0339.21
5.2.130.0070.0299.17
5.2.120.0050.0319.17
5.2.110.0050.0309.18
5.2.100.0070.0289.18
5.2.90.0070.0299.17
5.2.80.0070.0349.17
5.2.70.0100.0509.17
5.2.60.0070.0399.13
5.2.50.0090.0369.11
5.2.40.0050.0339.07
5.2.30.0100.0319.05
5.2.20.0080.0289.04
5.2.10.0100.0398.95
5.2.00.0040.0368.82
5.1.60.0020.0398.10
5.1.50.0110.0418.10
5.1.40.0080.0358.08
5.1.30.0130.0468.43
5.1.20.0070.0438.45
5.1.10.0080.0368.18
5.1.00.0060.0418.18
5.0.50.0160.0596.67
5.0.40.0090.0366.53
5.0.30.0080.0516.34
5.0.20.0110.0356.30
5.0.10.0160.0396.29
5.0.00.0060.0346.29
4.4.90.0050.0234.78
4.4.80.0050.0224.76
4.4.70.0080.0334.75
4.4.60.0060.0344.75
4.4.50.0040.0274.77
4.4.40.0040.0394.71
4.4.30.0050.0274.76
4.4.20.0040.0394.84
4.4.10.0060.0184.85
4.4.00.0130.0694.76
4.3.110.0040.0194.67
4.3.100.0070.0234.66
4.3.90.0040.0174.63
4.3.80.0050.0254.58
4.3.70.0040.0164.63
4.3.60.0040.0184.63
4.3.50.0040.0244.63
4.3.40.0070.0424.54
4.3.30.0200.0593.34
4.3.20.0010.0193.33
4.3.10.0040.0153.29
4.3.00.0230.03710.30

preferences:
44.1 ms | 401 KiB | 5 Q