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@ 2015-03-27T15:27:53Z

<?php

$input = [
    'a.b.c.d = 1',
    'a.b.c.e = Joey',
    'a.b.c.f = Smith',

    'a.b.g.d = 2',
    'a.b.g.e = Chris',
    'a.b.g.f = Divner'
];

$data = [];
$cleanKeys = [];
foreach($input as $record) {
    $equals  = strrpos($record, '=');
    $value   = trim(substr($record, $equals+1));
    $key     = trim(substr($record, 0, $equals));

    $lastDot = strrpos($key, '.');
    $appKey  = substr($key, $lastDot+1);
    $curKey  = substr($key, 0, $lastDot);
    $data[$curKey][$appKey] = $value;

    if (strpos($curKey, '.') !== FALSE) {
        $cleanKeys[] = $curKey;
    }
}

foreach($data as $k => $v){
    $keys     = explode('.', $k);
    $firstKey = array_shift($keys);
    $newData  = [];
    while($key = array_pop($keys)) {
        if (count($newData) === 0) {
                $newData[$key] = $v;
        } else {
                $newData = [$key => $newData];
        }
    }
    $data = array_merge_recursive($data, $newData);
    unset($data[$k]);
}

echo var_export($data);

Output for git.master, git.master_jit, rfc.property-hooks: array ( 'b' => array ( 'c' => array ( 'd' => '1', 'e' => 'Joey', 'f' => 'Smith', ), 'g' => array ( 'd' => '2', 'e' => 'Chris', 'f' => 'Divner', ), ), )

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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