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","asdfgh"); ?>

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)
8.3.70.0140.00316.50
8.3.60.0070.00716.61
8.3.50.0070.01021.95
8.3.40.0120.00618.82
8.3.30.0110.00419.19
8.3.20.0050.00320.34
8.3.10.0080.00023.66
8.3.00.0080.00019.38
8.2.180.0060.00918.11
8.2.170.0070.01122.96
8.2.160.0070.00720.41
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0030.00526.16
8.2.120.0070.00022.16
8.2.110.0070.01121.04
8.2.100.0080.00417.91
8.2.90.0060.00318.28
8.2.80.0040.00418.34
8.2.70.0090.00317.38
8.2.60.0040.00417.60
8.2.50.0000.00817.63
8.2.40.0000.00819.35
8.2.30.0080.00017.66
8.2.20.0030.00617.66
8.2.10.0000.00718.16
8.2.00.0000.01017.86
8.1.280.0110.00425.92
8.1.270.0040.00423.73
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0040.00422.71
8.1.230.0070.00420.82
8.1.220.0030.00517.76
8.1.210.0050.00518.77
8.1.200.0080.00017.38
8.1.190.0040.00417.22
8.1.180.0100.00018.10
8.1.170.0060.00318.97
8.1.160.0000.00718.85
8.1.150.0000.00718.58
8.1.140.0040.00417.43
8.1.130.0030.00317.79
8.1.120.0040.00417.41
8.1.110.0030.00417.38
8.1.100.0020.00517.52
8.1.90.0070.00017.54
8.1.80.0040.00417.53
8.1.70.0050.00217.50
8.1.60.0050.00317.70
8.1.50.0040.00417.64
8.1.40.0000.00817.56
8.1.30.0050.00317.69
8.1.20.0040.00417.73
8.1.10.0040.00417.67
8.1.00.0040.00417.63
8.0.300.0050.00220.05
8.0.290.0040.00416.75
8.0.280.0040.00417.99
8.0.270.0070.00018.04
8.0.260.0070.00017.36
8.0.250.0000.00617.00
8.0.240.0070.00017.09
8.0.230.0040.00417.07
8.0.220.0000.00716.86
8.0.210.0000.00716.95
8.0.200.0030.00317.12
8.0.190.0080.00017.09
8.0.180.0000.00716.93
8.0.170.0000.00817.00
8.0.160.0000.00716.93
8.0.150.0050.00316.84
8.0.140.0050.00216.86
8.0.130.0000.00613.41
8.0.120.0000.00716.96
8.0.110.0040.00416.86
8.0.100.0030.00616.90
8.0.90.0050.00216.92
8.0.80.0030.01216.92
8.0.70.0040.00416.82
8.0.60.0000.00816.98
8.0.50.0080.00017.05
8.0.30.0090.00917.05
8.0.20.0090.00917.43
8.0.10.0040.00416.99
8.0.00.0060.01216.84
7.4.330.0030.00315.00
7.4.320.0000.00616.63
7.4.300.0030.00316.48
7.4.290.0040.00416.70
7.4.280.0070.00016.54
7.4.270.0000.00816.64
7.4.260.0030.00316.61
7.4.250.0080.00016.54
7.4.240.0000.00716.54
7.4.230.0040.00416.48
7.4.220.0030.01516.48
7.4.210.0090.00716.56
7.4.200.0050.00316.53
7.4.190.0070.00016.59
7.4.160.0080.00816.69
7.4.150.0130.00617.40
7.4.140.0130.00517.86
7.4.130.0050.01216.47
7.4.120.0100.00816.65
7.4.110.0100.00716.66
7.4.100.0040.01616.52
7.4.90.0070.01416.52
7.4.80.0140.00719.39
7.4.70.0070.01016.46
7.4.60.0080.00816.66
7.4.50.0000.00816.35
7.4.40.0100.00622.77
7.4.30.0130.00416.60
7.4.00.0060.00914.91
7.3.330.0000.00613.27
7.3.320.0000.00613.39
7.3.310.0050.00216.25
7.3.300.0040.00216.41
7.3.290.0080.00816.34
7.3.280.0080.01016.37
7.3.270.0060.01017.40
7.3.260.0130.01016.45
7.3.250.0050.01216.64
7.3.240.0150.00616.40
7.3.230.0060.01116.64
7.3.210.0030.01316.63
7.3.200.0070.01019.39
7.3.190.0150.00316.36
7.3.180.0140.00316.39
7.3.170.0100.00716.61
7.3.160.0040.01216.54
7.3.120.0110.00714.92
7.2.330.0100.01016.75
7.2.320.0060.01216.46
7.2.310.0140.00716.73
7.2.300.0160.00416.88
7.2.290.0160.00316.81
7.2.00.0000.01719.30
7.1.100.0040.00818.15
7.1.70.0120.00317.21
7.1.60.0110.01419.33
7.1.50.0170.00317.16
7.1.00.0100.07022.33
7.0.200.0000.01516.86
7.0.140.0030.07322.09
7.0.60.0030.08319.99
7.0.50.0100.07717.95
7.0.40.0170.05320.11
7.0.30.0230.03320.17
7.0.20.0330.04320.12
7.0.10.0100.08020.24
7.0.00.0000.06020.23
5.6.280.0070.07020.94
5.6.210.0070.07020.55
5.6.200.0030.06718.16
5.6.190.0030.07720.61
5.6.180.0230.05020.50
5.6.170.0270.05320.71
5.6.160.0000.05320.51
5.6.150.0130.07718.18
5.6.140.0130.07318.15
5.6.130.0130.07318.23
5.6.120.0070.06321.06
5.6.110.0100.08020.91
5.6.100.0070.08720.97
5.6.90.0100.05720.98
5.6.80.0030.04320.40
5.6.70.4530.04320.36
5.5.350.0170.06720.48
5.5.340.0130.07017.93
5.5.330.0070.04320.42
5.5.320.0070.04320.52
5.5.310.0270.07320.27
5.5.300.0100.07017.93
5.5.290.0030.08318.04
5.5.280.0030.04020.95
5.5.270.0030.06720.66
5.5.260.0100.08720.66
5.5.250.0070.05720.68
5.5.240.0300.03020.05
5.4.450.0700.05719.61
5.4.440.1130.06719.17
5.4.430.0100.06019.47
5.4.420.0630.06719.55
5.4.410.0570.06019.50
5.4.400.0930.04319.31
5.4.390.0770.06319.14
5.4.380.0170.06018.79
5.4.370.0230.05718.77
5.4.360.0300.05318.63
5.4.350.0230.05718.55
5.4.340.0230.06018.74
5.4.320.0070.03612.52
5.4.310.0070.03812.52
5.4.300.0090.04112.52
5.4.290.0110.05212.52
5.4.280.0100.04912.38
5.4.270.0100.06412.38
5.4.260.0080.04912.39
5.4.250.0050.04212.39
5.4.240.0070.03812.38
5.4.230.0060.04112.38
5.4.220.0100.03912.38
5.4.210.0120.04512.38
5.4.200.0130.04512.38
5.4.190.0130.04812.37
5.4.180.0060.05612.38
5.4.170.0100.04312.38
5.4.160.0080.04912.38
5.4.150.0090.05012.37
5.4.140.0100.04612.06
5.4.130.0110.05412.05
5.4.120.0100.05712.01
5.4.110.0100.06312.00
5.4.100.0090.04912.00
5.4.90.0070.04812.00
5.4.80.0060.05612.00
5.4.70.0050.04012.00
5.4.60.0080.05712.00
5.4.50.0200.04712.00
5.4.40.0110.04611.98
5.4.30.0070.04811.98
5.4.20.0100.04711.98
5.4.10.0090.03611.98
5.4.00.0080.03811.48
5.3.290.0060.04012.80
5.3.280.0100.04312.71
5.3.270.0100.05012.72
5.3.260.0110.05112.71
5.3.250.0110.04812.72
5.3.240.0090.05512.72
5.3.230.0110.07012.71
5.3.220.0130.06312.68
5.3.210.0140.05412.68
5.3.200.0090.05512.68
5.3.190.0360.07612.68
5.3.180.0170.05412.68
5.3.170.0110.05212.67
5.3.160.0100.04912.67
5.3.150.0150.05812.68
5.3.140.0110.05312.66
5.3.130.0130.05512.65
5.3.120.0140.06012.66
5.3.110.0140.06712.66
5.3.100.0090.06312.12
5.3.90.0180.05212.10
5.3.80.0120.04712.09
5.3.70.0130.04312.09
5.3.60.0050.04512.07
5.3.50.0090.04412.02
5.3.40.0100.05712.02
5.3.30.0130.04311.98
5.3.20.0120.04811.77
5.3.10.0040.05711.72
5.3.00.0070.04311.72
5.2.170.0080.0409.21
5.2.160.0120.0479.21
5.2.150.0070.0459.21
5.2.140.0050.0459.21
5.2.130.0120.0509.17
5.2.120.0060.0699.17
5.2.110.0140.0499.18
5.2.100.0100.0419.18
5.2.90.0080.0479.18
5.2.80.0070.0579.17
5.2.70.0030.0509.17
5.2.60.0090.0439.13
5.2.50.0120.0399.11
5.2.40.0160.0409.08
5.2.30.0110.0549.05
5.2.20.0120.0389.03
5.2.10.0100.0428.95
5.2.00.0100.0478.82
5.1.60.0080.0328.11
5.1.50.0040.0378.10
5.1.40.0080.0348.08
5.1.30.0040.0408.43
5.1.20.0080.0368.45
5.1.10.0050.0388.18
5.1.00.0030.0408.18
5.0.50.0060.0226.67
5.0.40.0070.0396.53
5.0.30.0060.0536.34
5.0.20.0040.0226.31
5.0.10.0020.0246.29
5.0.00.0080.0416.28
4.4.90.0050.0254.78
4.4.80.0150.0314.76
4.4.70.0060.0174.76
4.4.60.0040.0164.75
4.4.50.0040.0224.77
4.4.40.0030.0354.70
4.4.30.0040.0174.76
4.4.20.0040.0264.85
4.4.10.0070.0184.85
4.4.00.0030.0304.76
4.3.110.0070.0174.67
4.3.100.0050.0154.66
4.3.90.0040.0224.64
4.3.80.0030.0344.58
4.3.70.0040.0204.63
4.3.60.0060.0154.63
4.3.50.0030.0194.62
4.3.40.0030.0364.54
4.3.30.0010.0223.34
4.3.20.0030.0183.33
4.3.10.0030.0173.29
4.3.00.0130.02710.30

preferences:
36.59 ms | 401 KiB | 5 Q