What factors should be considered when deciding whether to define the mapping in the database or in a configuration file for converting integer to string values in PHP?

When deciding whether to define the mapping in the database or in a configuration file for converting integer to string values in PHP, factors such as the frequency of updates to the mapping, the complexity of the mapping logic, the need for flexibility in changing mappings, and the performance impact of querying the database should be considered. If the mapping is static and rarely changes, storing it in a configuration file may be more efficient. However, if the mapping is dynamic or frequently updated, storing it in the database allows for easier management and flexibility.

// Define mapping in a configuration file
$mapping = [
    1 => 'One',
    2 => 'Two',
    3 => 'Three',
];

// Convert integer to string using mapping
$integerValue = 2;
if (isset($mapping[$integerValue])) {
    $stringValue = $mapping[$integerValue];
    echo $stringValue;
} else {
    echo 'Mapping not found';
}