How can one access data from an associative array within another associative array in PHP?

To access data from an associative array within another associative array in PHP, you can simply chain the keys together using square brackets. For example, if you have an array $outerArray containing another array $innerArray, you can access a value within $innerArray by using $outerArray['key']['innerKey']. 

$outerArray = array(
    'key' => array(
        'innerKey' => 'value'
    )
);

$value = $outerArray['key']['innerKey'];
echo $value; // Output: value

Keywords

PHP associative array nested array multidimensional array data access

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