3v4l.org

run code in 300+ PHP versions simultaneously
<?php /* span :: (a -> Bool) -> [a] -> ([a],[a]) span _ xs@[] = (xs, xs) span p xs@(x:xs') | p x = let (ys,zs) = span p xs' in (x:ys,zs) | otherwise = ([],xs) */ function span($p, $xs) { if (empty($xs)) { return [[], []]; } $xs_ = $xs; $x = array_shift($xs_); if ($p($x)) { list($ys, $zs) = span($p, $xs_); return [array_merge([$x], $ys), $zs]; } return [[], $xs]; } /* groupBy :: (a -> a -> Bool) -> [a] -> [[a]] groupBy _ [] = [] groupBy eq (x:xs) = (x:ys) : groupBy eq zs where (ys,zs) = span (eq x) xs */ function array_group(callable $eq, array $xs) { if (empty($xs)) { return []; } $x = array_shift($xs); // curry of $eq $eqx = function ($y) use ($eq, $x) { return $eq($x, $y); }; list($ys, $zs) = span($eqx, $xs); return array_merge([array_merge([$x], $ys)], array_group($eq, $zs)); } function it($m,$p){echo ($p?'OK':'NO')." It $m\n"; if(!$p){$GLOBALS['f']=1;}} function done(){if(@$GLOBALS['f'])die(1);} it('spans elements which match', span(function ($x) { return $x < 3; }, [1, 2, 3]) === [[1, 2], [3]]); it('spans elements which match from the start', span(function ($x) { return $x == 3; }, [1, 6, 3, 3]) === [[], [1, 2, 3, 3]]); it('spans returns empty lists on empty list', span(function ($x) { return false; }, []) === [[], []]); it('groups elements recursively', array_group(function ($a, $b) { return $a <= ($b-1); }, [1, 1, 2, 1]) === [[1, 1], [2], [1]]); echo print_r(array_group(function ($a, $b) { return $a <= ($b-1); }, [1, 1, 2, 1]) === [[1, 1], [2], [1]]);

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)
8.3.70.0120.00618.30
8.3.60.0110.00318.43
8.3.50.0140.00921.07
8.3.40.0100.00618.72
8.3.30.0000.01419.08
8.3.20.0000.00820.24
8.3.10.0050.00323.66
8.3.00.0160.00319.38
8.2.180.0110.00418.39
8.2.170.0120.00922.96
8.2.160.0130.00720.26
8.2.150.0120.00324.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0000.00722.26
8.2.110.0040.00422.20
8.2.100.0090.00317.75
8.2.90.0040.00419.32
8.2.80.0060.00317.97
8.2.70.0040.00417.63
8.2.60.0100.00018.04
8.2.50.0040.00418.07
8.2.40.0040.00419.88
8.2.30.0040.00418.05
8.2.20.0060.00317.91
8.2.10.0000.00818.05
8.2.00.0040.00417.90
8.1.280.0090.01225.92
8.1.270.0080.00022.19
8.1.260.0030.00526.35
8.1.250.0080.00028.09
8.1.240.0030.00623.97
8.1.230.0040.00719.08
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0030.00617.23
8.1.190.0040.00417.23
8.1.180.0040.00418.10
8.1.170.0080.00018.59
8.1.160.0040.00422.00
8.1.150.0070.00018.93
8.1.140.0040.00417.50
8.1.130.0000.00717.91
8.1.120.0040.00417.48
8.1.110.0050.00317.45
8.1.100.0070.00017.49
8.1.90.0040.00417.38
8.1.80.0040.00417.55
8.1.70.0000.00717.50
8.1.60.0040.00417.63
8.1.50.0040.00417.61
8.1.40.0040.00417.58
8.1.30.0050.00317.72
8.1.20.0000.00817.60
8.1.10.0040.00417.66
8.1.00.0070.00017.57
8.0.300.0000.00718.77
8.0.290.0040.00416.75
8.0.280.0050.00218.48
8.0.270.0070.00017.37
8.0.260.0030.00317.31
8.0.250.0000.00717.01
8.0.240.0060.00016.96
8.0.230.0050.00217.11
8.0.220.0000.00717.05
8.0.210.0080.00016.89
8.0.200.0000.00717.07
8.0.190.0000.00717.04
8.0.180.0040.00417.04
8.0.170.0000.00817.08
8.0.160.0000.00717.13
8.0.150.0000.00716.89
8.0.140.0070.00016.95
8.0.130.0000.00613.37
8.0.120.0000.00716.96
8.0.110.0040.00416.92
8.0.100.0040.00416.88
8.0.90.0050.00217.02
8.0.80.0060.01617.00
8.0.70.0000.00817.02
8.0.60.0040.00416.92
8.0.50.0030.00316.79
8.0.30.0050.01416.88
8.0.20.0120.00717.40
8.0.10.0000.00717.21
8.0.00.0120.00916.87
7.4.330.0020.00215.02
7.4.320.0060.00316.59
7.4.300.0000.00616.58
7.4.290.0030.00316.65
7.4.280.0030.00316.67
7.4.270.0000.00616.49
7.4.260.0080.00016.52
7.4.250.0040.00416.63
7.4.240.0050.00216.59
7.4.230.0030.00316.66
7.4.220.0120.00616.70
7.4.210.0120.00316.70
7.4.200.0080.00016.47
7.4.160.0100.00716.79
7.4.150.0070.01117.40
7.4.140.0130.00717.86
7.4.130.0110.00716.56
7.4.120.0100.00716.50
7.4.110.0140.00316.47
7.4.100.0090.00916.57
7.4.90.0140.00316.45
7.4.80.0100.00719.39
7.4.70.0070.01216.55
7.4.60.0070.01416.54
7.4.50.0000.00916.55
7.4.40.0060.01216.85
7.4.30.0030.01516.36
7.4.00.0070.00714.92
7.3.330.0060.00013.38
7.3.320.0020.00213.28
7.3.310.0050.00316.46
7.3.300.0000.00716.24
7.3.290.0040.01216.36
7.3.280.0060.01016.40
7.3.270.0110.00817.40
7.3.260.0030.01416.64
7.3.250.0050.01116.55
7.3.240.0040.01316.43
7.3.230.0070.01016.67
7.3.210.0110.00516.32
7.3.200.0100.01319.39
7.3.190.0100.00616.49
7.3.180.0030.01316.46
7.3.170.0100.00716.30
7.3.160.0070.01016.55
7.2.330.0070.01116.71
7.2.320.0170.00316.58
7.2.310.0110.00716.80
7.2.300.0060.01316.86
7.2.290.0140.00916.87
7.2.00.0080.00619.23
7.1.100.0030.00618.14
7.1.70.0070.00017.32
7.1.60.0140.01019.11
7.1.50.0100.01416.98
7.1.00.0100.07022.53
7.0.200.0050.00516.50
7.0.140.0030.07721.96
7.0.60.0100.08320.00
7.0.50.0070.07717.89
7.0.40.0030.05320.09
7.0.30.0130.05720.09
7.0.20.0230.04020.12
7.0.10.0030.04320.33
7.0.00.0070.08720.20
5.6.280.0130.06721.13
5.6.210.0070.04020.64
5.6.200.0070.05318.17
5.6.190.0070.05020.50
5.6.180.0230.08320.50
5.6.170.0270.07720.39
5.6.160.0130.07720.59
5.6.150.0030.08718.19
5.6.140.0030.04018.24
5.6.130.0030.09018.22
5.6.120.0030.04021.04
5.6.110.0070.05321.01
5.6.100.0100.07021.05
5.6.90.0030.04321.10
5.6.80.0270.06020.41
5.5.350.0100.08020.42
5.5.340.0130.07318.05
5.5.330.0100.06720.40
5.5.320.0200.05020.42
5.5.310.0200.05720.27
5.5.300.0030.04018.09
5.5.290.0100.07717.99
5.5.280.0070.08320.90
5.5.270.0030.06320.89
5.5.260.0130.03321.00
5.5.250.0070.08320.64
5.5.240.4130.04320.07
5.4.450.1000.05319.19
5.4.440.0700.05319.71
5.4.430.0770.05719.61
5.4.420.0830.05019.70
5.4.410.0830.05719.48
5.4.400.0800.06319.11
5.4.390.0900.07719.02
5.4.380.0770.06319.26
5.4.370.0800.05019.31
5.4.360.0670.06018.88
5.4.350.0800.06318.88
5.4.340.0080.03412.04
5.4.320.0060.04212.53
5.4.310.0120.04112.52
5.4.300.0090.04512.53
5.4.290.0110.04212.53
5.4.280.0130.04112.42
5.4.270.0110.04112.42
5.4.260.0100.03712.42
5.4.250.0080.04712.42
5.4.240.0090.04912.43
5.4.230.0070.04312.42
5.4.220.0120.04512.42
5.4.210.0060.05012.42
5.4.200.0080.05012.42
5.4.190.0070.04212.42
5.4.180.0060.05112.41
5.4.170.0120.04312.43
5.4.160.0070.04812.42
5.4.150.0040.04112.41
5.4.140.0080.03512.10
5.4.130.0070.04212.09
5.4.120.0050.04012.05
5.4.110.0050.04912.04
5.4.100.0090.04412.05
5.4.90.0060.04212.04
5.4.80.0100.04312.04
5.4.70.0060.04612.04
5.4.60.0090.04612.04
5.4.50.0050.04412.04
5.4.40.0070.04112.03
5.4.30.0060.03812.02
5.4.20.0040.03912.02
5.4.10.0060.03612.02
5.4.00.0080.03511.51
5.3.290.0050.04212.80
5.3.280.0090.07612.71
5.3.270.0080.03712.72
5.3.260.0050.05212.72
5.3.250.0070.05112.72
5.3.240.0110.04712.72
5.3.230.0110.04712.71
5.3.220.0070.05112.68
5.3.210.0060.04612.68
5.3.200.0090.03512.68
5.3.190.0070.03912.68
5.3.180.0050.03912.68
5.3.170.0080.03812.66
5.3.160.0050.04112.67
5.3.150.0120.03912.68
5.3.140.0110.04712.66
5.3.130.0090.05012.66
5.3.120.0110.04912.66
5.3.110.0120.04012.66
5.3.100.0050.04312.13
5.3.90.0070.03912.11
5.3.80.0080.05512.09
5.3.70.0070.05112.09
5.3.60.0060.03912.09
5.3.50.0040.03912.02
5.3.40.0070.03612.02
5.3.30.0040.03711.98
5.3.20.0070.04111.76
5.3.10.0070.03611.73
5.3.00.0100.03511.72
5.2.170.0050.0309.21
5.2.160.0070.0309.22
5.2.150.0030.0339.22
5.2.140.0050.0339.22
5.2.130.0020.0329.18
5.2.120.0030.0349.18
5.2.110.0030.0329.18
5.2.100.0030.0319.18
5.2.90.0040.0339.18
5.2.80.0060.0309.18
5.2.70.0060.0339.17
5.2.60.0070.0389.13
5.2.50.0030.0359.09
5.2.40.0060.0339.07
5.2.30.0060.0409.05
5.2.20.0070.0389.05
5.2.10.0030.0338.95
5.2.00.0080.0288.80
5.1.60.0050.0268.09
5.1.50.0060.0268.08
5.1.40.0040.0268.07
5.1.30.0040.0298.42
5.1.20.0040.0288.44
5.1.10.0060.0258.16
5.1.00.0060.0248.16
5.0.50.0050.0206.64
5.0.40.0060.0256.51
5.0.30.0050.0386.31
5.0.20.0020.0216.29
5.0.10.0010.0236.26
5.0.00.0040.0396.25
4.4.90.0060.0224.78
4.4.80.0030.0214.75
4.4.70.0070.0184.76
4.4.60.0030.0194.75
4.4.50.0050.0134.77
4.4.40.0020.0264.71
4.4.30.0040.0154.76
4.4.20.0000.0194.84
4.4.10.0010.0174.85
4.4.00.0020.0264.76
4.3.110.0000.0184.67
4.3.100.0020.0164.67
4.3.90.0040.0134.64
4.3.80.0030.0244.58
4.3.70.0020.0154.63
4.3.60.0030.0144.63
4.3.50.0020.0164.62
4.3.40.0000.0284.54
4.3.30.0040.0143.30
4.3.20.0010.0183.28
4.3.10.0050.0183.24
4.3.00.0270.0206.86

preferences:
57.76 ms | 401 KiB | 5 Q