In what scenarios should mysql_fetch_array be called within a loop in PHP functions?

When fetching rows from a MySQL database using `mysql_fetch_array` in PHP functions, it should be called within a loop to iterate over each row and process the data accordingly. This is because `mysql_fetch_array` fetches only one row at a time, so looping through the result set allows you to access each row sequentially. 

// Connect to MySQL database
$conn = mysqli_connect("localhost", "username", "password", "database");

// Query to fetch data from database
$query = "SELECT * FROM table";
$result = mysqli_query($conn, $query);

// Loop through each row fetched from the database
while ($row = mysqli_fetch_array($result)) {
    // Process data from each row
    echo $row['column_name'] . "<br>";
}

// Close the database connection
mysqli_close($conn);

Keywords

mysql_fetch_array loop PHP functions scenarios database operations

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