How can a for loop be utilized to improve the efficiency of data retrieval in PHP?

When retrieving data from a database in PHP, using a for loop can improve efficiency by fetching multiple rows of data in a single query execution, rather than making separate queries for each row. This reduces the number of database calls and can significantly speed up the data retrieval process. 

// Example of using a for loop to retrieve data efficiently from a database

// Assuming $conn is the database connection

$query = "SELECT * FROM table_name";
$result = mysqli_query($conn, $query);

if(mysqli_num_rows($result) > 0){
    for($i = 0; $i < mysqli_num_rows($result); $i++){
        $row = mysqli_fetch_assoc($result);
        // Process each row of data here
    }
}

Keywords

for loop data retrieval efficiency PHP optimization

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