3v4l.org

run code in 300+ PHP versions simultaneously
<?php function levenshteinDistance($a, $b) { echo("a = ".$a.",b = ".$b); $matrix = array(count($a) + 1); for ($i=0; $i<count($a)+1; $i++) { $matrix[$i] = array(count($b) + 1); } for ($i=0; $i<count($a)+1; $i++) { $matrix[$i][0] = $i; } for ($j=0; $j<count($b)+1; $j++) { $matrix[0][$j] = $j; } for ($i=1; $i<count($a)+1; $i++) { for ($j=1; $j<count($b)+1; $j++) { //$x = $a[$i - 1] == $b[$j -1] ? 0 : 1; if($a[$i-1] == $b[$j-1]){ $x = 0; } else{ $x = 1; } $matrix[$i][$j] = min( $matrix[$i - 1][$j] + 1, $matrix[$i][$j - 1] + 1, $matrix[$i - 1][$j- 1] + $x ); } } return $matrix[count($a)][count($b)]; } echo levenshteinDistance("aaa","bbb"); ?>

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)
8.3.60.0090.00616.63
8.3.50.0130.00322.00
8.3.40.0060.01218.88
8.3.30.0120.00319.04
8.3.20.0050.00220.34
8.3.10.0040.00423.63
8.3.00.0080.00020.86
8.2.180.0070.00716.38
8.2.170.0070.00722.96
8.2.160.0120.00320.29
8.2.150.0030.00524.18
8.2.140.0080.00024.66
8.2.130.0020.00526.16
8.2.120.0040.00420.73
8.2.110.0030.00622.38
8.2.100.0120.00018.03
8.2.90.0000.00819.27
8.2.80.0000.00817.97
8.2.70.0000.00817.50
8.2.60.0030.00617.90
8.2.50.0050.00318.07
8.2.40.0050.00321.17
8.2.30.0000.00818.19
8.2.20.0030.00617.64
8.2.10.0000.00818.05
8.2.00.0000.00817.63
8.1.280.0150.00425.92
8.1.270.0050.00323.92
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00023.97
8.1.230.0090.00319.10
8.1.220.0080.00017.78
8.1.210.0000.00818.77
8.1.200.0090.00317.25
8.1.190.0030.00517.22
8.1.180.0050.00318.10
8.1.170.0000.00718.71
8.1.160.0070.00021.99
8.1.150.0000.00718.49
8.1.140.0090.00017.40
8.1.130.0070.00017.78
8.1.120.0000.00717.30
8.1.110.0050.00217.45
8.1.100.0000.00717.41
8.1.90.0000.00717.45
8.1.80.0050.00217.41
8.1.70.0000.00817.36
8.1.60.0000.00917.49
8.1.50.0000.00817.44
8.1.40.0030.00517.48
8.1.30.0000.00817.56
8.1.20.0000.00717.64
8.1.10.0040.00417.46
8.1.00.0070.00017.47
8.0.300.0000.00818.77
8.0.290.0000.00716.75
8.0.280.0070.00018.33
8.0.270.0040.00417.28
8.0.260.0040.00417.19
8.0.250.0030.00317.09
8.0.240.0050.00317.05
8.0.230.0030.00317.02
8.0.220.0050.00216.99
8.0.210.0030.00316.93
8.0.200.0060.00016.94
8.0.190.0000.00716.99
8.0.180.0070.00016.96
8.0.170.0040.00416.98
8.0.160.0000.00816.94
8.0.150.0080.00016.88
8.0.140.0000.00716.88
8.0.130.0030.00313.40
8.0.120.0060.00316.78
8.0.110.0040.00416.87
8.0.100.0050.00316.92
8.0.90.0000.00716.86
8.0.80.0040.01717.00
8.0.70.0060.00316.86
8.0.60.0000.00717.00
8.0.50.0040.00416.98
8.0.30.0110.00817.19
8.0.20.0060.01317.40
8.0.10.0070.00016.84
8.0.00.0050.01316.76
7.4.330.0000.00515.08
7.4.320.0070.00016.64
7.4.300.0000.00616.59
7.4.290.0040.00416.44
7.4.280.0040.00416.63
7.4.270.0030.00316.44
7.4.260.0000.00816.54
7.4.250.0000.00716.52
7.4.240.0040.00416.58
7.4.230.0000.00716.73
7.4.220.0120.00616.66
7.4.210.0060.01216.56
7.4.200.0040.00416.54
7.4.190.0000.00716.61
7.4.160.0120.00416.49
7.4.150.0150.00417.40
7.4.140.0080.00917.86
7.4.130.0140.00516.52
7.4.120.0090.00916.65
7.4.110.0110.00716.46
7.4.100.0090.00916.74
7.4.90.0090.01216.51
7.4.80.0110.00719.39
7.4.70.0100.01016.64
7.4.60.0150.00316.66
7.4.50.0030.00616.61
7.4.40.0120.00916.68
7.4.30.0000.01516.58
7.4.00.0070.01015.02
7.3.330.0000.00713.45
7.3.320.0060.00013.44
7.3.310.0080.00016.39
7.3.300.0070.00016.40
7.3.290.0170.00316.44
7.3.280.0090.00616.47
7.3.270.0060.01217.40
7.3.260.0070.01016.56
7.3.250.0120.01016.44
7.3.240.0140.00416.46
7.3.230.0100.00716.66
7.3.210.0160.00316.41
7.3.200.0120.01219.39
7.3.190.0100.01316.74
7.3.180.0140.00616.48
7.3.170.0060.01616.45
7.3.160.0060.01316.59
7.3.120.0080.01014.79
7.3.110.0060.01015.15
7.3.100.0100.01014.68
7.3.90.0030.00714.81
7.3.80.0140.00415.03
7.3.70.0040.00814.98
7.3.60.0090.00614.91
7.3.50.0080.00414.61
7.3.40.0040.01114.93
7.3.30.0040.00814.92
7.3.20.0100.00716.88
7.3.10.0090.00316.31
7.3.00.0030.00716.77
7.2.330.0100.01016.63
7.2.320.0090.00916.79
7.2.310.0070.01016.46
7.2.300.0100.00716.52
7.2.290.0040.01416.57
7.2.250.0030.01615.13
7.2.240.0140.00415.14
7.2.230.0030.00615.00
7.2.220.0040.01115.25
7.2.210.0040.01115.15
7.2.200.0070.00714.89
7.2.190.0060.00915.02
7.2.180.0040.01115.22
7.2.170.0030.01215.18
7.2.160.0080.00515.11
7.2.150.0060.01016.98
7.2.140.0000.01816.68
7.2.130.0000.01417.08
7.2.120.0090.00916.80
7.2.110.0070.01116.76
7.2.100.0080.00416.99
7.2.90.0030.00716.86
7.2.80.0070.01016.73
7.2.70.0090.00316.92
7.2.60.0080.00816.92
7.2.50.0000.01416.80
7.2.40.0040.01117.13
7.2.30.0130.00316.87
7.2.20.0080.00416.92
7.2.10.0000.01416.75
7.2.00.0050.00718.01
7.1.330.0060.00615.78
7.1.320.0060.00615.69
7.1.310.0070.01016.11
7.1.300.0040.01115.59
7.1.290.0000.01315.83
7.1.280.0040.00415.66
7.1.270.0030.00615.64
7.1.260.0080.00515.89
7.1.250.0070.01015.98
7.1.240.0080.00415.89
7.1.230.0090.00615.54
7.1.220.0030.00915.84
7.1.210.0000.01515.57
7.1.200.0040.00715.86
7.1.190.0040.01115.94
7.1.180.0030.01015.98
7.1.170.0100.00315.93
7.1.160.0150.00015.95
7.1.150.0090.00315.75
7.1.140.0100.00015.60
7.1.130.0030.00615.75
7.1.120.0110.00315.94
7.1.110.0070.00716.01
7.1.100.0030.00717.03
7.1.90.0090.00615.72
7.1.80.0040.00415.86
7.1.70.0040.00816.53
7.1.60.0080.01017.58
7.1.50.0080.00816.46
7.1.40.0000.01415.76
7.1.30.0060.00915.94
7.1.20.0030.00915.88
7.1.10.0080.00015.69
7.1.00.0080.04019.05
7.0.330.0120.00315.41
7.0.320.0090.00315.47
7.0.310.0070.00715.14
7.0.300.0000.01115.20
7.0.290.0090.00315.28
7.0.280.0000.01215.22
7.0.270.0060.00315.14
7.0.260.0000.01315.23
7.0.250.0090.00015.51
7.0.240.0060.00615.49
7.0.230.0100.00315.52
7.0.220.0080.00015.47
7.0.210.0060.00315.26
7.0.200.0080.00316.13
7.0.190.0000.01015.25
7.0.180.0070.00715.12
7.0.170.0090.00315.46
7.0.160.0030.01015.53
7.0.150.0030.00915.50
7.0.140.0050.04218.77
7.0.130.0040.00415.44
7.0.120.0080.00015.20
7.0.110.0030.00515.32
7.0.100.0090.00315.59
7.0.90.0000.01115.34
7.0.80.0100.00315.09
7.0.70.0040.00715.40
7.0.60.0050.02317.80
7.0.50.0030.02816.67
7.0.40.0070.04616.81
7.0.30.0130.02816.86
7.0.20.0230.04016.86
7.0.10.0060.02216.69
7.0.00.0050.05016.75
5.6.400.0100.00314.52
5.6.390.0080.00814.09
5.6.380.0070.01014.47
5.6.370.0080.00414.67
5.6.360.0060.00614.41
5.6.350.0110.00314.72
5.6.340.0030.00914.73
5.6.330.0070.00414.64
5.6.320.0070.00314.71
5.6.310.0030.00614.61
5.6.300.0030.01314.25
5.6.290.0080.00414.41
5.6.280.0020.04217.93
5.6.270.0130.00014.72
5.6.260.0000.01114.79
5.6.250.0080.00414.55
5.6.240.0090.00314.21
5.6.230.0060.00914.52
5.6.220.0060.00614.19
5.6.210.0060.03317.67
5.6.200.0050.03316.45
5.6.190.0080.04217.70
5.6.180.0060.03017.56
5.6.170.0150.03017.63
5.6.160.0100.02017.44
5.6.150.0040.03316.34
5.6.140.0030.02716.28
5.6.130.0070.02216.44
5.6.120.0070.04217.76
5.6.110.0020.02717.81
5.6.100.0050.04217.79
5.6.90.0080.04517.72
5.6.80.0040.03617.33
5.6.70.0120.00314.26
5.6.60.0040.00414.46
5.6.50.0030.01214.47
5.6.40.0030.01014.73
5.6.30.0030.01014.64
5.6.20.0030.00914.25
5.6.10.0070.00714.09
5.6.00.0040.01414.33
5.5.380.0100.00314.39
5.5.370.0060.00614.32
5.5.360.0000.01514.16
5.5.350.0080.02517.56
5.5.340.0080.03616.18
5.5.330.0120.02017.41
5.5.320.0120.02617.46
5.5.310.0200.03317.29
5.5.300.0010.02316.13
5.5.290.0070.04016.37
5.5.280.0080.03617.55
5.5.270.0090.02117.44
5.5.260.0100.03217.60
5.5.250.0070.04317.48
5.5.240.0100.02317.38
5.5.230.0130.00014.21
5.5.220.0090.00614.39
5.5.210.0070.00714.16
5.5.200.0030.00614.52
5.5.190.0070.00614.33
5.5.180.0070.00714.12
5.5.170.0050.00514.28
5.5.160.0080.00814.29
5.5.150.0040.00814.26
5.5.140.0030.00714.02
5.5.130.0100.00714.21
5.5.120.0000.00914.57
5.5.110.0070.00714.41
5.5.100.0000.01114.63
5.5.90.0030.00614.45
5.5.80.0100.00314.43
5.5.70.0080.00814.48
5.5.60.0000.01414.10
5.5.50.0000.00814.47
5.5.40.0030.01014.40
5.5.30.0040.00713.93
5.5.20.0100.00714.46
5.5.10.0090.00614.16
5.5.00.0000.01114.11
5.4.450.0120.02616.13
5.4.440.0430.03316.16
5.4.430.0290.03115.96
5.4.420.0250.03416.13
5.4.410.0450.03315.87
5.4.400.0030.04015.76
5.4.390.0510.02815.76
5.4.380.0070.03215.58
5.4.370.0110.02715.71
5.4.360.0100.02815.73
5.4.350.0100.03215.68
5.4.340.0050.03215.61
5.4.330.0060.00612.64
5.4.320.0060.02112.57
5.4.310.0040.02212.57
5.4.300.0040.02812.57
5.4.290.0050.03112.57
5.4.280.0080.03012.52
5.4.270.0090.02412.52
5.4.260.0050.02912.52
5.4.250.0040.03012.52
5.4.240.0050.02812.52
5.4.230.0020.03012.52
5.4.220.0050.03012.52
5.4.210.0050.02812.52
5.4.200.0040.02912.52
5.4.190.0040.03112.52
5.4.180.0040.03012.52
5.4.170.0080.02712.52
5.4.160.0020.02912.52
5.4.150.0070.02612.52
5.4.140.0080.02812.36
5.4.130.0050.02712.35
5.4.120.0060.02712.33
5.4.110.0110.02312.33
5.4.100.0060.02612.33
5.4.90.0050.02712.33
5.4.80.0060.02812.33
5.4.70.0060.02412.33
5.4.60.0060.02612.33
5.4.50.0070.02612.33
5.4.40.0090.02112.32
5.4.30.0090.02112.32
5.4.20.0090.01812.32
5.4.10.0080.01912.32
5.4.00.0040.02412.06
5.3.290.0080.02412.72
5.3.280.0040.02512.67
5.3.270.0040.02712.68
5.3.260.0040.02712.68
5.3.250.0070.02412.68
5.3.240.0080.02012.68
5.3.230.0060.02012.67
5.3.220.0040.02212.66
5.3.210.0030.02812.66
5.3.200.0050.02212.66
5.3.190.0040.02512.66
5.3.180.0040.02412.65
5.3.170.0070.02312.65
5.3.160.0060.02312.66
5.3.150.0090.01912.66
5.3.140.0050.02212.65
5.3.130.0060.02312.64
5.3.120.0070.02212.65
5.3.110.0040.02612.65
5.3.100.0050.02212.38
5.3.90.0020.02312.38
5.3.80.0080.01912.37
5.3.70.0060.01912.37
5.3.60.0090.01912.37
5.3.50.0040.02312.34
5.3.40.0040.02412.34
5.3.30.0050.02112.31
5.3.20.0080.01912.21
5.3.10.0040.02212.19
5.3.00.0040.02412.18
5.2.170.0010.0379.23
5.2.160.0050.0309.23
5.2.150.0050.0329.23
5.2.140.0060.0319.23
5.2.130.0030.0329.19
5.2.120.0050.0299.19
5.2.110.0040.0349.20
5.2.100.0070.0309.19
5.2.90.0080.0309.19
5.2.80.0070.0329.19
5.2.70.0060.0349.18
5.2.60.0040.0359.14
5.2.50.0060.0309.11
5.2.40.0060.0299.09
5.2.30.0020.0369.06
5.2.20.0060.0289.05
5.2.10.0050.0298.96
5.2.00.0040.0318.82
5.1.60.0050.0238.10
5.1.50.0050.0248.10
5.1.40.0040.0268.09
5.1.30.0100.0308.43
5.1.20.0120.0298.46
5.1.10.0070.0328.18
5.1.00.0060.0278.18
5.0.50.0060.0256.66
5.0.40.0040.0186.53
5.0.30.0040.0316.33
5.0.20.0030.0206.30
5.0.10.0020.0246.29
5.0.00.0020.0336.28
4.4.90.0050.0144.78
4.4.80.0050.0164.76
4.4.70.0030.0154.75
4.4.60.0020.0164.76
4.4.50.0030.0154.77
4.4.40.0040.0244.71
4.4.30.0030.0154.76
4.4.20.0040.0154.84
4.4.10.0010.0184.85
4.4.00.0050.0234.76
4.3.110.0020.0174.67
4.3.100.0020.0164.66
4.3.90.0030.0154.63
4.3.80.0030.0254.58
4.3.70.0040.0144.63
4.3.60.0040.0144.63
4.3.50.0040.0154.63
4.3.40.0030.0244.53
4.3.30.0020.0173.33
4.3.20.0010.0183.31
4.3.10.0020.0163.27
4.3.00.0000.0237.09

preferences:
46.77 ms | 401 KiB | 5 Q