在PHP中迭代复杂的关联数组

$complexArray = [
    'person1' => [
        'name' => 'John',
        'age' => 30,
        'city' => 'New York'
    ],
    'person2' => [
        'name' => 'Jane',
        'age' => 25,
        'city' => 'Los Angeles'
    ],
    'person3' => [
        'name' => 'Bob',
        'age' => 40,
        'city' => 'Chicago'
    ]
];

foreach ($complexArray as $key => $value) {
    echo "Person " . ($key + 1) . ":\n";
    foreach ($value as $property => $propertyValue) {
        echo $property . ": " . $propertyValue . "\n";
    }
    echo "\n";
}

Person 1:
name: John
age: 30
city: New York

Person 2:
name: Jane
age: 25
city: Los Angeles

Person 3:
name: Bob
age: 40
city: Chicago