What are the potential issues with storing elements before creating child elements in PHP?

Storing elements before creating child elements in PHP can lead to memory inefficiency and potential issues with managing the data structure. To solve this, it is recommended to create child elements as soon as possible or use a more efficient data structure like nested arrays to avoid unnecessary memory usage.

// Example of creating child elements immediately instead of storing parent elements first
$parentElement = [
    'childElement1' => 'value1',
    'childElement2' => 'value2'
];

// Nested array structure for more efficient data management
$nestedArray = [
    'parentElement' => [
        'childElement1' => 'value1',
        'childElement2' => 'value2'
    ]
];