What is the best approach to ensure that PHP assigns a value of "0" to a day in an array if no entry is found?

To ensure that PHP assigns a value of "0" to a day in an array if no entry is found, you can use the `??` null coalescing operator along with the ternary operator to check if a value exists for the specific day in the array. If a value is not found, you can assign a default value of "0" to that day.

// Sample array with days and values
$days = [
    'Monday' => 10,
    'Tuesday' => 20,
    'Wednesday' => 0,
    // No entry for Thursday
    'Friday' => 30
];

// Assign a value of "0" to Thursday if no entry is found
$thursdayValue = $days['Thursday'] ?? 0;

// Output the value for Thursday
echo "Value for Thursday: " . $thursdayValue;