Online PHP editor | rfc for RUVqc

@ 2023-01-20T01:16:21Z

<?php

$array = [
    'note' => [],
    'year' => ['2011','2010', '2012'],
    'type' => ['conference', 'journal', 'conference'],
];

function array_multisort_custom(array &$array, $columnKey, array $order)
{
    // guard clause/condition
    if (!array_key_exists($columnKey, $array)) {
        throw new Exception('Nominated sorting column not found');
    }
    
    // pad rows to consistent size
    $maxCount = max(array_map('count', $array));
    array_walk($array, fn(&$row) => $row = array_pad($row, $maxCount, null));

    // populate first sorting parameter with custom order array
    $priority = array_flip($order);
    $default = count($order);
    foreach ($array[$columnKey] as $v) {
        $params[0][] = $priority[$v] ?? $default;
    }
    
    // assign reference variables to parameter array for all rows
    foreach ($array as &$row) {
        $params[] = &$row;
    }
    
    array_multisort(...$params);
}

array_multisort_custom($array, 'type', ['conference', 'journal']);
var_export($array);

Output for git.master, git.master_jit, rfc.property-hooks: array ( 'note' => array ( 0 => NULL, 1 => NULL, 2 => NULL, ), 'year' => array ( 0 => '2011', 1 => '2012', 2 => '2010', ), 'type' => array ( 0 => 'conference', 1 => 'conference', 2 => 'journal', ), )

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2022-12-01 RFC: Property hooks - included in PHP 8.4
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