What potential issues can arise when combining a for loop with a query in PHP?

When combining a for loop with a query in PHP, one potential issue that can arise is making multiple database calls within the loop, which can be inefficient and slow down the performance of the application. To solve this issue, you can fetch all the necessary data from the database before entering the loop and then iterate over the fetched data in the loop. 

// Fetch data from the database before entering the loop
$query = "SELECT * FROM table";
$result = mysqli_query($connection, $query);
$data = mysqli_fetch_all($result, MYSQLI_ASSOC);

// Iterate over the fetched data in the loop
foreach($data as $row) {
    // Perform operations on $row
}

Keywords

for loop query PHP database performance

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