Online PHP editor | rfc for 4HhsV

@ 2019-01-06T10:56:52Z

<?php
function sortString($string)
{
  $type_chars = str_split($string);
  sort($type_chars);
  return implode($type_chars);
}

function getValue($map, $input)
{
  $key = implode(',', array_map('sortString', $input));
  return $map[$key] ?? null;
}

function sortMap($map)
{
  return array_reduce(array_keys($map), function ($sorted_map, $types) use ($map) {
    $sorted_types = preg_replace_callback('/[A-Z]{2}/', function ($matches) {
      return sortString($matches[0]);
    }, $types);
    $sorted_map[$sorted_types] = $map[$types];
    return $sorted_map;
  }, []);
}

$map = sortMap([
  'CC,GG,AA,CC' => 'high',
  'TT,GA,TT,CG' => 'medium',
  'CT,AG,TT,GG' => 'low',
]);

echo getValue($map, ['CC', 'GG', 'AA', 'CC']) . "\n"; // high
echo getValue($map, ['TT', 'AG', 'TT', 'CG']) . "\n"; // medium
echo getValue($map, ['TT', 'GA', 'TT', 'GC']) . "\n"; // medium
echo getValue($map, ['CT', 'AG', 'TT', 'GG']) . "\n"; // low

Output for git.master, git.master_jit, rfc.property-hooks: high medium medium low

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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
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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