What are the potential issues with using SELECT * in PHP when retrieving data from a MySQL database?

Using SELECT * in PHP when retrieving data from a MySQL database can lead to inefficient queries and potential security risks. It is recommended to specify the columns you actually need in the query to improve performance and prevent exposing sensitive information. 

// Specify the columns you need in the query instead of using SELECT *
$query = "SELECT column1, column2, column3 FROM table_name";
$result = mysqli_query($connection, $query);

// Fetch data from the result
while ($row = mysqli_fetch_assoc($result)) {
    // Process the retrieved data
}

Keywords

SELECT * PHP MySQL database data retrieval

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