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path: root/app/genealogy/search/name/data.json/index.php
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<?php

require_once $_SERVER['DOCUMENT_ROOT'] . "/../session.php";

/** @var string $_FULLNAME
 *  @var string $_USER
 *  @var array $_PROFILE
 *  @var array $_CONFIG
 */

$data = json_decode(file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/private/data/people.json"), true);

header("Content-Type: application/json");

$arr = [];
$names = [];
$counts = [];

foreach ($data as $id => $person) {
    $name = ucfirst(strtolower($person["surname"]));

    if (isset($counts[$name])) {
        $counts[$name]++;
    } else {
        $counts[$name] = 1;
    }
    if (!in_array($name, $names)) {
        $names[] = $name;
    }
}

foreach ($names as $name) {
    $arr[] = [
        'name' => $name,
        'occurrences' => $counts[$name] . " personne" . ($counts[$name] > 1 ? "s" : "")
    ];
}

echo(json_encode($arr));