Online PHP editor | rfc for ZfDLo

@ 2018-11-02T11:44:50Z

<?php
$aUserFiles = [
    0 => [
        'file' => 'file 1',
        'semesters' => [
            3
        ]
    ],
    1 => [
        'file' => 'file 2',
        'semesters' => [
            3,4 
        ]
    ],
    2 => [
        'file' => 'file 3',
        'semesters' => [
            1,2
        ]
    ],
    3 => [
        'file' => 'file 4',
        'semesters' => [
            3,4,5,6
        ]
    ]
];

$requiredSemesters = 3;
$indicators = [];
$result = [];

foreach ($aUserFiles as $key => $file) {
    $first = $file['semesters'][0];
    $last = $file['semesters'][count($file['semesters']) - 1];
    $filesInRangeCount = count(array_intersect($file['semesters'], range(1, $requiredSemesters)));
    
    if (!isset($indicators[$first]) || $indicators[$first]['range'] < $filesInRangeCount) {
        $indicators[$first] = ["key" => $key, "max" => $last, "range" => $filesInRangeCount];
    }
}

ksort($indicators);

$result = [];
$max = 0;

foreach ($indicators as $indicator) {
    if ($max >= $requiredSemesters) {
        break;
    }
    
    $result[] = $aUserFiles[$indicator['key']];
    $max = $indicator["max"];
}

print_r($result);

Output for git.master_jit, git.master, rfc.property-hooks: Array ( [0] => Array ( [file] => file 3 [semesters] => Array ( [0] => 1 [1] => 2 ) ) [1] => Array ( [file] => file 1 [semesters] => Array ( [0] => 3 ) ) )

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2022-12-01 RFC: Property hooks - included in PHP 8.4
2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
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2015-02-18 Scalar type hints v5 - included in PHP 7
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