31 lines
693 B
PHP
31 lines
693 B
PHP
<?php
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namespace App\Support;
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class InternoSort
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{
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/**
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* @return array{0:string,1:int,2:string}
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*/
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public static function key(?string $interno): array
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{
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$s = trim((string) ($interno ?? ''));
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if ($s === '' || $s === '—') {
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return ['~', PHP_INT_MAX, ''];
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}
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$u = strtoupper($s);
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$m = null;
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if (preg_match('/^([A-Z]+)\s*[-\/]\s*(\d+)(.*)$/', $u, $m)) {
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return [$m[1], (int) $m[2], trim((string) ($m[3] ?? ''))];
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}
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if (preg_match('/^(\d+)(.*)$/', $u, $m)) {
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return ['', (int) $m[1], trim((string) ($m[2] ?? ''))];
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}
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return [$u, PHP_INT_MAX, $u];
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}
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}
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