Skip to content
PHP Logo

What are the advantages of using MySQL's DATE_FORMAT function to format TIME fields compared to PHP functions like substr()?

When formatting TIME fields, using MySQL's DATE_FORMAT function is advantageous because it allows for consistent formatting across different queries and simplifies the code by handling the formatting directly in the database query. On the other hand, using PHP functions like substr() requires additional processing in the application code, which can be less efficient and harder to maintain.

php 
// Using MySQL's DATE_FORMAT function to format TIME fields
$query = "SELECT DATE_FORMAT(time_field, '%H:%i:%s') AS formatted_time FROM table_name";
$result = mysqli_query($connection, $query);

while($row = mysqli_fetch_assoc($result)) {
    echo $row['formatted_time'] . "<br>";
}

Related questions