Why is it recommended not to use "SELECT *" in productive PHP code?

Using "SELECT *" in productive PHP code is not recommended because it can lead to performance issues and make the code less maintainable. It is better to explicitly specify the columns you need in the SELECT statement to improve query performance and avoid unexpected behavior if the table structure changes in the future. 

// Specify the columns you need in the SELECT statement instead of using SELECT *
$query = "SELECT column1, column2, column3 FROM table_name";
$result = mysqli_query($connection, $query);

// Fetch and process the results as needed
while ($row = mysqli_fetch_assoc($result)) {
    // Process the data
}

Keywords

SQL injection performance security maintainability readability

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