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@ 2015-11-11T16:46:33Z

<?php

$stuff = ['a' => ['b' => 'c']];
$path = 'a.b';
$parts = explode('.', $path);
$value = &$stuff;

foreach ($parts as $part) {
    if (isset($value[$part])) {
        $value = &$value[$part];
    }
    else {
        throw new \RuntimeException('fail at: ' . $part);
    }
}

var_dump($value);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
explode: documentation ( source)

preferences:dark modelive preview

45.13 ms | 402 KiB | 5 Q