In PHP, what are the benefits of specifying individual columns in a SELECT statement rather than using SELECT * when querying a database?

Specifying individual columns in a SELECT statement instead of using SELECT * when querying a database can improve performance by reducing the amount of data that needs to be retrieved from the database. It can also make the code more readable and maintainable by explicitly stating which columns are being selected. 

// Specify individual columns in a SELECT statement
$query = "SELECT column1, column2, column3 FROM table_name";
$result = mysqli_query($connection, $query);

// Process the results
if (mysqli_num_rows($result) > 0) {
    while ($row = mysqli_fetch_assoc($result)) {
        // Access the selected columns using $row['column_name']
    }
}

Keywords

PHP SELECT statement database querying performance optimization data retrieval

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