php interview session d3

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<?php
#1
$users = [
    [
        'name' => 'Alice',
        'age' => 25,
        'address' => [
            'city' => 'New York',
            'country' => 'USA'
        ],
        'preferences' => [
            'newsletter' => true
        ]
    ],
    [
        'name' => 'Bob',
        'age' => 30,
        'address' => [
            'city' => 'London',
            'country' => 'UK'
        ],
        'preferences' => [
            'newsletter' => false
        ]
    ],
 
 
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php interview session d3