How can PHP developers optimize their code by avoiding unnecessary SELECT * queries in PHP scripts?

PHP developers can optimize their code by avoiding unnecessary SELECT * queries in PHP scripts. Instead of selecting all columns from a table, developers should explicitly specify the columns they need in the SELECT query. This reduces the amount of data fetched from the database and improves the performance of the script. 

// Avoid unnecessary SELECT * queries by specifying the columns needed
$query = "SELECT column1, column2, column3 FROM table_name WHERE condition = 'value'";
$result = mysqli_query($connection, $query);

// Process the query result
if(mysqli_num_rows($result) > 0){
    while($row = mysqli_fetch_assoc($result)){
        // Process each row
    }
}

Keywords

PHP SELECT * optimization database queries performance

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