3v4l.org

run code in 300+ PHP versions simultaneously
<?php $subjectSlots = [ "tamil" => [1, 2, 3, 4, 5], "english" => [4, 5, 6], "maths" => [1, 5, 8], "social" => [1, 2, 5], "pt" => [1], "hindi" => [3, 4, 7] ]; $requiredSubjects = ['tamil', 'tamil', 'pt', 'maths', 'maths', 'social', 'hindi', 'english']; usort($requiredSubjects, function($a, $b) use ($subjectSlots) { return $subjectSlots[$a] <=> $subjectSlots[$b]; // sort by length, then by values }); function fillSlots($requiredSubjects, $availableSlots, $filledSlots = []) { if (!$requiredSubjects) { ksort($filledSlots); return $filledSlots; } foreach ($requiredSubjects as $rIndex => $subject) { foreach ($availableSlots[$subject] as $sIndex => $slot) { if (!isset($filledSlots[$slot])) { unset($requiredSubjects[$rIndex], $availableSlots[$subject][$sIndex]); $result = fillSlots( $requiredSubjects, $availableSlots, array_replace($filledSlots, [$slot => $subject]) ); if ($result) { return $result; } } } } } var_export(fillSlots($requiredSubjects, $subjectSlots));

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)
8.5.20.0120.00619.33
8.5.10.0090.00816.73
8.5.00.0110.01020.20
8.4.170.0150.00820.54
8.4.160.0100.01223.59
8.4.150.0030.00014.05
8.4.140.0130.00717.56
8.4.130.0100.01217.61
8.4.120.0080.00920.66
8.4.110.0110.01020.47
8.4.100.0120.00717.82
8.4.90.0100.01120.33
8.4.80.0030.00518.73
8.4.70.0080.00317.75
8.4.60.0080.00720.29
8.4.50.0110.00918.52
8.4.40.0100.00620.52
8.4.30.0050.00318.70
8.4.20.0120.00917.90
8.4.10.0040.00420.55
8.3.300.0090.00920.84
8.3.290.0130.00920.81
8.3.280.0090.01118.46
8.3.270.0100.01016.75
8.3.260.0120.00816.38
8.3.250.0140.00419.01
8.3.240.0090.00616.77
8.3.230.0080.01216.69
8.3.220.0050.00318.86
8.3.210.0040.00416.71
8.3.200.0030.00616.52
8.3.190.0090.00716.70
8.3.180.0120.00818.34
8.3.170.0090.00917.25
8.3.160.0080.00018.13
8.3.150.0090.00919.06
8.3.140.0000.00817.20
8.3.130.0100.01018.77
8.3.120.0110.00819.04
8.3.110.0000.00816.73
8.3.100.0050.00316.69
8.3.90.0000.00826.77
8.3.80.0030.00619.36
8.3.70.0140.00716.63
8.3.60.0150.00616.50
8.3.50.0120.00523.56
8.3.40.0090.00620.48
8.3.30.0110.00718.84
8.3.20.0040.00424.18
8.3.10.0050.00324.66
8.3.00.0000.00826.16
8.2.300.0120.00722.25
8.2.290.0080.01016.64
8.2.280.0100.01122.17
8.2.270.0150.00418.88
8.2.260.0000.00816.86
8.2.250.0050.00318.64
8.2.240.0060.00318.80
8.2.230.0080.00020.94
8.2.220.0090.00624.06
8.2.210.0000.00826.77
8.2.200.0100.00018.88
8.2.190.0070.01416.63
8.2.180.0100.00725.92
8.2.170.0030.01422.96
8.2.160.0110.00422.96
8.2.150.0040.00425.66
8.2.140.0060.00324.66
8.2.130.0080.00026.16
8.2.120.0000.00726.35
8.2.110.0030.00620.99
8.2.100.0040.00817.91
8.2.90.0080.00018.28
8.2.80.0000.00818.16
8.2.70.0040.00417.75
8.2.60.0040.00417.63
8.2.50.0050.00317.86
8.2.40.0080.00418.79
8.2.30.0120.00018.72
8.2.20.0040.00418.06
8.2.10.0060.00618.74
8.2.00.0040.00718.70
8.1.340.0130.00721.86
8.1.330.0120.00716.28
8.1.320.0120.00716.42
8.1.310.0090.00518.36
8.1.300.0120.00318.08
8.1.290.0030.00630.84
8.1.280.0140.00725.92
8.1.270.0030.00523.99
8.1.260.0000.00728.09
8.1.250.0040.00428.09
8.1.240.0100.00324.03
8.1.230.0070.00421.00
8.1.220.0000.00817.74
8.1.210.0000.00818.79
8.1.200.0030.00617.48
8.1.190.0090.00017.35
8.1.180.0080.00418.10
8.1.170.0060.00617.86
8.1.160.0070.00718.58
8.1.150.0060.00718.44
8.1.140.0100.00218.45
8.1.130.0100.00319.08
8.1.120.0110.00317.77
8.1.110.0100.00617.78
8.1.100.0100.00417.73
8.1.90.0070.00517.76
8.1.80.0070.00417.79
8.1.70.0020.00917.76
8.1.60.0100.00317.81
8.1.50.0100.00517.76
8.1.40.0050.00717.82
8.1.30.0120.00317.83
8.1.20.0050.00717.82
8.1.10.0070.00617.82
8.1.00.0050.00817.84
8.0.300.0000.00720.03
8.0.290.0070.00016.75
8.0.280.0050.00718.23
8.0.270.0070.00517.52
8.0.260.0090.00218.33
8.0.250.0050.00617.53
8.0.240.0080.00417.58
8.0.230.0090.00317.50
8.0.220.0060.00617.56
8.0.210.0100.00217.54
8.0.200.0040.00817.50
8.0.190.0090.00217.54
8.0.180.0080.00417.48
8.0.170.0060.00617.52
8.0.160.0050.00617.53
8.0.150.0100.00317.48
8.0.140.0060.00517.49
8.0.130.0050.00515.69
8.0.120.0070.00417.44
8.0.110.0040.00817.44
8.0.100.0080.00517.50
8.0.90.0060.00617.44
8.0.80.0100.00617.31
8.0.70.0070.00517.41
8.0.60.0050.00717.47
8.0.50.0070.00517.50
8.0.30.0110.00517.57
8.0.20.0140.00517.34
8.0.10.0100.00217.58
8.0.00.0050.01317.37
7.4.330.0060.00316.82
7.4.320.0120.00217.27
7.4.300.0070.00617.30
7.4.290.0100.00117.31
7.4.280.0060.00517.28
7.4.270.0080.00417.35
7.4.260.0030.00815.71
7.4.250.0060.00517.29
7.4.240.0050.00516.98
7.4.230.0080.00417.36
7.4.220.0070.00317.01
7.4.210.0060.01016.99
7.4.200.0090.00217.25
7.4.190.0120.00418.10
7.4.180.0120.00318.10
7.4.160.0130.00318.10
7.4.150.0110.00418.10
7.4.140.0090.00518.10
7.4.130.0120.00617.01
7.4.120.0090.01017.25
7.4.110.0100.00517.35
7.4.100.0080.00717.27
7.4.90.0090.00617.26
7.4.80.0090.00818.75
7.4.70.0080.01117.30
7.4.60.0120.00317.25
7.4.50.0080.01117.32
7.4.40.0100.00717.23
7.4.30.0090.00717.32
7.4.20.0090.00717.11
7.4.10.0080.00817.21
7.4.00.0070.00817.28
7.3.330.0070.00417.15
7.3.320.0070.00315.74
7.3.310.0040.00717.30
7.3.300.0100.00017.16
7.3.290.0060.01016.82
7.3.280.0120.00517.24
7.3.270.0110.00418.10
7.3.260.0070.00917.27
7.3.250.0100.00318.10
7.3.240.0090.00816.82
7.3.230.0090.00917.35
7.3.220.0080.00818.10
7.3.210.0080.00817.30
7.3.200.0120.00417.21
7.3.190.0110.00517.26
7.3.180.0100.00717.37
7.3.170.0130.00417.30
7.3.160.0090.00917.41
7.3.150.0130.00417.21
7.3.140.0140.00217.37
7.3.130.0120.00717.19
7.3.120.0090.00917.24
7.3.110.0080.00817.36
7.3.100.0080.00917.33
7.3.90.0060.00917.22
7.3.80.0110.00517.19
7.3.70.0080.00817.31
7.3.60.0080.00917.25
7.3.50.0080.00717.16
7.3.40.0140.00317.30
7.3.30.0090.00717.32
7.3.20.0100.00718.14
7.3.10.0120.00418.07
7.3.00.0130.00518.22
7.2.340.0090.00518.10
7.2.330.0140.00217.34
7.2.320.0160.00317.43
7.2.310.0070.00817.49
7.2.300.0080.00717.40
7.2.290.0090.00917.40
7.2.280.0110.00617.37
7.2.270.0050.01117.29
7.2.260.0140.00817.31
7.2.250.0080.00817.46
7.2.240.0090.00717.35
7.2.230.0150.00217.35
7.2.220.0120.00617.47
7.2.210.0130.00317.37
7.2.200.0110.00717.39
7.2.190.0080.00917.37
7.2.180.0090.00717.26
7.2.170.0170.01517.37
7.2.160.0110.00717.39
7.2.150.0140.00418.29
7.2.140.0090.01018.39
7.2.130.0070.01118.33
7.2.120.0080.00918.35
7.2.110.0100.00718.28
7.2.100.0100.01018.25
7.2.90.0110.00618.37
7.2.80.0110.00818.40
7.2.70.0080.01118.31
7.2.60.0070.01018.38
7.2.50.0080.01118.31
7.2.40.0140.00518.34
7.2.30.0080.00818.36
7.2.20.0120.00618.32
7.2.10.0080.00918.31
7.2.00.0090.00918.38

preferences:
30.69 ms | 403 KiB | 5 Q