In the context of PHP programming, what are the advantages and disadvantages of using constants for array keys, as demonstrated in the forum thread?

Using constants for array keys in PHP programming can provide advantages such as improved code readability, easier maintenance, and prevention of accidental key changes. However, it may also lead to potential limitations in flexibility and increased verbosity in the code. 

<?php
define('KEY_NAME', 'name');
define('KEY_AGE', 'age');

$data = [
    KEY_NAME => 'John Doe',
    KEY_AGE => 30
];

echo $data[KEY_NAME]; // Output: John Doe
echo $data[KEY_AGE]; // Output: 30
?>

Keywords

PHP constants array keys advantages disadvantages

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