What are the considerations for optimizing SQL queries in PHP to prevent redundant data from being displayed in search results?

To prevent redundant data from being displayed in search results when optimizing SQL queries in PHP, you can utilize the DISTINCT keyword in your SELECT statement. This will ensure that only unique rows are returned, eliminating any duplicates that may be present in the database. 

$query = "SELECT DISTINCT column_name FROM table_name WHERE condition";
$result = mysqli_query($connection, $query);

if(mysqli_num_rows($result) > 0){
    while($row = mysqli_fetch_assoc($result)){
        // Display search results
    }
} else {
    // Display no results message
}

Keywords

SQL queries optimization redundant data search results PHP functions

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