<?php
'world' => '!',
'earth' => '?'
)
),
// your code goes here
$yourVar = null;
$access = "['foo']['hello']['world']";
$actualAccesEvalCode = '$yourVar = $example'.$access.';';
eval($actualAccesEvalCode);
echo 'YourVal now is '.$yourVar;
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