[Solved] Implementation of Nearby Person on web page [closed]

by


An implementation could be something like this:

<?php

$people = 
[
    'John',
    'Adam',
    'Terry',
    'Gary',
    'Wilbur'
];

$get_closest = function ($person) use ($people)
{
    $closest = [];
    $key = array_search($person, $people);
    if($key !== false) {
        $before = $key-1;
        $after  = $key+1;
        if(isset($people[$before]))
            $closest[] = $people[$before];
        if(isset($people[$after]))
            $closest[] = $people[$after];
    }

    return $closest;
};

var_dump($get_closest('Gary'));

Output:

array(2) {
    [0]=>
    string(5) "Terry"
    [1]=>
    string(6) "Wilbur"
  }

2

solved Implementation of Nearby Person on web page [closed]