3v4l.org

run code in 300+ PHP versions simultaneously
<?php function levenshteinDistance($a, $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; $matrix[$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("aqq","att"); ?>

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)
8.3.60.0110.00416.75
8.3.50.0060.00922.04
8.3.40.0080.00818.83
8.3.30.0120.00319.17
8.3.20.0040.00420.48
8.3.10.0080.00023.70
8.3.00.0040.00419.17
8.2.180.0170.00316.35
8.2.170.0040.01122.96
8.2.160.0070.00720.39
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0040.00426.16
8.2.120.0040.00420.70
8.2.110.0060.00320.58
8.2.100.0120.00317.72
8.2.90.0040.00417.75
8.2.80.0000.00818.82
8.2.70.0060.00317.75
8.2.60.0040.00417.50
8.2.50.0000.00817.55
8.2.40.0060.00321.09
8.2.30.0050.00218.08
8.2.20.0030.00517.64
8.2.10.0070.00018.07
8.2.00.0040.00417.66
8.1.280.0030.01025.92
8.1.270.0080.00023.88
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0050.00523.79
8.1.230.0060.00620.97
8.1.220.0060.00318.52
8.1.210.0000.00818.77
8.1.200.0040.00417.36
8.1.190.0000.00917.22
8.1.180.0060.00322.07
8.1.170.0050.00318.57
8.1.160.0040.00422.03
8.1.150.0050.00218.51
8.1.140.0000.00717.32
8.1.130.0000.00717.78
8.1.120.0040.00417.38
8.1.110.0000.00717.36
8.1.100.0040.00417.38
8.1.90.0000.00717.31
8.1.80.0000.00717.40
8.1.70.0040.00417.36
8.1.60.0060.00317.52
8.1.50.0030.00617.38
8.1.40.0030.00617.37
8.1.30.0080.00017.50
8.1.20.0040.00417.66
8.1.10.0030.00517.55
8.1.00.0040.00417.48
8.0.300.0000.00718.77
8.0.290.0040.00416.88
8.0.280.0000.00718.30
8.0.270.0000.00717.12
8.0.260.0050.00217.21
8.0.250.0020.00516.86
8.0.240.0000.00716.86
8.0.230.0000.00716.93
8.0.220.0000.00716.87
8.0.210.0050.00316.83
8.0.200.0060.00016.96
8.0.190.0000.00816.95
8.0.180.0040.00416.84
8.0.170.0040.00416.82
8.0.160.0000.00716.92
8.0.150.0000.00716.82
8.0.140.0000.00816.85
8.0.130.0000.00513.42
8.0.120.0080.00016.93
8.0.110.0030.00316.84
8.0.100.0080.00016.86
8.0.90.0040.00417.09
8.0.80.0030.01316.94
8.0.70.0040.00416.96
8.0.60.0040.00416.79
8.0.50.0030.00516.77
8.0.30.0100.00916.96
8.0.20.0090.00917.40
8.0.10.0080.00017.02
8.0.00.0140.00416.76
7.4.330.0000.00615.05
7.4.320.0000.00716.42
7.4.300.0000.00716.62
7.4.290.0070.00016.54
7.4.280.0080.00016.61
7.4.270.0000.00716.63
7.4.260.0070.00016.61
7.4.250.0040.00416.63
7.4.240.0000.00716.62
7.4.230.0070.00016.41
7.4.220.0150.00316.68
7.4.210.0110.00316.63
7.4.200.0050.00216.41
7.4.190.0040.00416.70
7.4.160.0120.00316.55
7.4.150.0100.01017.40
7.4.140.0150.00717.86
7.4.130.0050.01216.53
7.4.120.0130.00516.50
7.4.110.0100.01316.66
7.4.100.0120.01316.63
7.4.90.0090.01516.67
7.4.80.0190.00419.39
7.4.70.0130.00316.50
7.4.60.0040.01816.44
7.4.50.0040.00016.41
7.4.40.0100.00716.70
7.4.30.0090.00916.69
7.4.10.0060.01314.79
7.4.00.0060.01215.01
7.3.330.0030.00313.43
7.3.320.0000.00513.24
7.3.310.0000.00716.46
7.3.300.0030.00316.36
7.3.290.0090.00916.45
7.3.280.0070.01216.45
7.3.270.0140.00417.40
7.3.260.0090.00916.57
7.3.250.0050.01316.40
7.3.240.0090.01516.34
7.3.230.0130.00616.66
7.3.210.0070.01016.41
7.3.200.0100.00719.39
7.3.190.0090.00916.69
7.3.180.0100.00616.43
7.3.170.0080.00816.46
7.3.160.0110.00916.60
7.3.130.0000.01714.92
7.3.120.0070.01114.90
7.3.110.0070.01014.96
7.3.100.0070.00814.81
7.3.90.0040.00814.73
7.3.80.0020.00715.01
7.3.70.0050.00714.90
7.3.60.0080.00514.88
7.3.50.0080.00314.94
7.3.40.0050.00914.95
7.3.30.0080.00514.79
7.3.20.0020.01216.60
7.3.10.0050.00916.79
7.3.00.0040.01116.72
7.2.330.0030.01416.80
7.2.320.0160.01116.74
7.2.310.0120.00416.89
7.2.300.0100.00716.64
7.2.290.0180.00016.85
7.2.260.0030.01715.34
7.2.250.0030.01815.20
7.2.240.0050.01115.22
7.2.230.0040.00815.28
7.2.220.0090.00515.13
7.2.210.0000.01415.03
7.2.200.0040.00915.01
7.2.190.0040.01114.97
7.2.180.0070.00815.20
7.2.170.0040.00815.04
7.2.160.0070.00314.91
7.2.150.0070.01116.97
7.2.140.0080.00416.91
7.2.130.0050.01117.07
7.2.120.0030.00917.00
7.2.110.0090.00716.88
7.2.100.0050.00816.95
7.2.90.0060.00816.91
7.2.80.0050.00916.87
7.2.70.0060.00417.03
7.2.60.0020.01116.95
7.2.50.0060.00616.78
7.2.40.0100.00617.07
7.2.30.0030.01016.79
7.2.20.0020.00916.89
7.2.10.0080.00817.00
7.2.00.0070.00717.74
7.1.330.0040.01115.81
7.1.320.0070.00715.81
7.1.310.0060.00815.63
7.1.300.0120.00415.91
7.1.290.0050.00615.96
7.1.280.0000.01315.87
7.1.270.0110.00215.71
7.1.260.0050.01216.02
7.1.250.0050.00715.85
7.1.240.0030.00715.79
7.1.230.0100.00615.90
7.1.220.0030.00915.82
7.1.210.0000.01415.80
7.1.200.0050.01015.92
7.1.190.0100.00315.62
7.1.180.0040.00715.78
7.1.170.0040.01115.86
7.1.160.0070.01015.77
7.1.150.0070.00715.93
7.1.140.0040.01215.76
7.1.130.0090.00015.96
7.1.120.0000.00915.56
7.1.110.0060.00615.71
7.1.100.0060.00817.11
7.1.90.0040.00815.86
7.1.80.0110.00015.55
7.1.70.0060.00416.50
7.1.60.0100.00817.75
7.1.50.0030.01316.48
7.1.40.0000.01215.86
7.1.30.0050.00515.85
7.1.20.0070.00715.77
7.1.10.0030.01315.82
7.1.00.0050.03819.12
7.0.330.0000.01215.23
7.0.320.0030.00815.51
7.0.310.0030.00915.53
7.0.300.0130.00015.46
7.0.290.0040.00815.64
7.0.280.0080.00315.65
7.0.270.0100.00315.47
7.0.260.0070.00715.07
7.0.250.0030.01315.59
7.0.240.0030.01315.54
7.0.230.0070.00415.48
7.0.220.0000.01115.56
7.0.210.0000.01215.13
7.0.200.0040.00616.14
7.0.190.0000.00815.60
7.0.180.0000.01015.37
7.0.170.0040.00415.57
7.0.160.0070.00715.54
7.0.150.0000.00815.45
7.0.140.0050.03518.65
7.0.130.0110.00315.54
7.0.120.0030.01015.70
7.0.110.0030.00715.56
7.0.100.0000.01315.45
7.0.90.0000.01315.55
7.0.80.0000.01015.51
7.0.70.0030.01015.45
7.0.60.0090.04417.72
7.0.50.0080.03316.77
7.0.40.0100.03216.95
7.0.30.0200.03716.83
7.0.20.0150.03416.95
7.0.10.0070.04716.78
7.0.00.0050.02516.92
5.6.400.0030.01414.71
5.6.390.0030.01014.43
5.6.380.0000.01214.77
5.6.370.0030.00914.57
5.6.360.0070.00714.60
5.6.350.0030.01014.55
5.6.340.0040.00714.46
5.6.330.0060.00614.37
5.6.320.0030.01014.43
5.6.310.0030.01014.56
5.6.300.0070.00714.64
5.6.290.0030.00614.53
5.6.280.0080.03917.85
5.6.270.0070.00714.76
5.6.260.0030.01014.45
5.6.250.0030.00614.50
5.6.240.0030.01014.69
5.6.230.0060.00914.37
5.6.220.0060.00314.62
5.6.210.0130.02217.56
5.6.200.0050.03516.28
5.6.190.0030.04717.47
5.6.180.0120.02517.36
5.6.170.0180.04317.56
5.6.160.0080.03217.51
5.6.150.0100.04516.34
5.6.140.0050.02616.36
5.6.130.0020.04016.23
5.6.120.0020.03217.87
5.6.110.0050.02517.67
5.6.100.0030.03117.71
5.6.90.0050.02317.81
5.6.80.0080.02717.57
5.6.70.0030.01214.63
5.6.60.0070.00714.21
5.6.50.0040.00714.25
5.6.40.0120.00314.43
5.6.30.0070.00714.27
5.6.20.0110.00714.57
5.6.10.0070.00414.12
5.6.00.0040.00814.26
5.5.380.0140.00314.60
5.5.370.0040.01114.43
5.5.360.0000.01514.37
5.5.350.0200.03917.45
5.5.340.0070.04216.29
5.5.330.0000.05117.55
5.5.320.0120.02117.34
5.5.310.0250.03717.34
5.5.300.0020.05016.12
5.5.290.0140.03716.09
5.5.280.0070.04517.47
5.5.270.0110.04417.50
5.5.260.0080.04317.64
5.5.250.0120.03817.40
5.5.240.0070.04017.27
5.5.230.0060.00914.46
5.5.220.0030.01014.05
5.5.210.0070.01014.04
5.5.200.0000.01814.10
5.5.190.0070.00314.59
5.5.180.0100.00314.32
5.5.170.0030.01314.16
5.5.160.0030.01014.46
5.5.150.0070.00714.51
5.5.140.0030.00614.18
5.5.130.0090.00314.19
5.5.120.0060.01014.45
5.5.110.0090.00614.29
5.5.100.0100.00714.34
5.5.90.0060.00814.41
5.5.80.0080.00414.49
5.5.70.0050.01614.23
5.5.60.0000.01914.07
5.5.50.0160.00314.33
5.5.40.0100.00714.05
5.5.30.0090.01014.38
5.5.20.0040.01414.21
5.5.10.0040.01714.23
5.5.00.0040.01714.41
5.4.450.0100.02715.38
5.4.440.0360.02615.22
5.4.430.0650.03215.40
5.4.420.0710.03415.39
5.4.410.0550.03315.29
5.4.400.0430.02915.25
5.4.390.0480.03415.17
5.4.380.0150.02514.77
5.4.370.0150.03314.83
5.4.360.0150.02214.98
5.4.350.0090.03014.73
5.4.340.0080.02815.00
5.4.330.0000.00710.88
5.4.320.0040.02411.80
5.4.310.0060.02211.80
5.4.300.0050.02211.87
5.4.290.0040.02611.82
5.4.280.0060.02311.77
5.4.270.0060.02311.81
5.4.260.0040.02511.67
5.4.250.0070.02211.77
5.4.240.0050.02311.76
5.4.230.0060.02111.76
5.4.220.0070.02211.79
5.4.210.0050.02311.87
5.4.200.0060.02011.79
5.4.190.0040.02611.66
5.4.180.0060.02411.66
5.4.170.0090.02111.78
5.4.160.0020.02611.77
5.4.150.0070.02111.79
5.4.140.0020.02711.65
5.4.130.0040.02211.62
5.4.120.0100.01911.49
5.4.110.0080.02511.63
5.4.100.0070.02211.59
5.4.90.0060.02311.56
5.4.80.0020.03011.65
5.4.70.0070.02111.66
5.4.60.0060.02411.58
5.4.50.0030.02811.67
5.4.40.0060.02111.46
5.4.30.0060.02511.58
5.4.20.0100.02111.66
5.4.10.0060.02511.52
5.4.00.0060.03511.26
5.3.290.0060.02311.66
5.3.280.0040.03111.55
5.3.270.0040.03011.64
5.3.260.0100.02211.71
5.3.250.0050.02311.68
5.3.240.0050.02911.56
5.3.230.0060.02711.67
5.3.220.0090.02411.64
5.3.210.0080.02911.69
5.3.200.0050.02411.69
5.3.190.0050.02411.72
5.3.180.0040.02311.57
5.3.170.0080.02311.73
5.3.160.0060.02511.60
5.3.150.0080.02211.71
5.3.140.0040.02511.70
5.3.130.0060.02311.62
5.3.120.0090.02211.66
5.3.110.0070.02711.56
5.3.100.0050.02511.43
5.3.90.0080.02111.32
5.3.80.0070.02211.34
5.3.70.0060.02411.25
5.3.60.0040.02511.37
5.3.50.0090.02611.33
5.3.40.0080.02511.22
5.3.30.0040.02311.32
5.3.20.0060.02211.16
5.3.10.0060.02511.08
5.3.00.0060.02911.06
5.2.170.0150.0349.23
5.2.160.0110.0359.23
5.2.150.0070.0439.23
5.2.140.0070.0429.23
5.2.130.0070.0419.20
5.2.120.0020.0459.19
5.2.110.0100.0379.20
5.2.100.0070.0359.19
5.2.90.0050.0439.19
5.2.80.0040.0459.19
5.2.70.0070.0419.19
5.2.60.0050.0439.14
5.2.50.0060.0429.11
5.2.40.0070.0329.09
5.2.30.0050.0329.06
5.2.20.0110.0389.05
5.2.10.0040.0408.96
5.2.00.0070.0408.82
5.1.60.0080.0218.10
5.1.50.0020.0268.10
5.1.40.0040.0248.08
5.1.30.0040.0278.43
5.1.20.0050.0268.46
5.1.10.0030.0278.18
5.1.00.0040.0268.18
5.0.50.0010.0246.66
5.0.40.0060.0186.53
5.0.30.0040.0316.33
5.0.20.0030.0206.30
5.0.10.0030.0216.29
5.0.00.0040.0316.28
4.4.90.0030.0164.78
4.4.80.0040.0154.76
4.4.70.0050.0174.76
4.4.60.0060.0144.75
4.4.50.0020.0164.77
4.4.40.0040.0244.71
4.4.30.0040.0154.76
4.4.20.0020.0174.84
4.4.10.0020.0174.85
4.4.00.0010.0274.76
4.3.110.0040.0154.67
4.3.100.0030.0234.67
4.3.90.0050.0204.63
4.3.80.0020.0344.59
4.3.70.0020.0234.63
4.3.60.0050.0204.63
4.3.50.0020.0174.63
4.3.40.0050.0234.54
4.3.30.0030.0153.33
4.3.20.0020.0163.31
4.3.10.0010.0173.27
4.3.00.0070.0177.09

preferences:
47.25 ms | 401 KiB | 5 Q