What is the difference between using "SELECT modul" and "SELECT *" in a MySQL query in PHP?

When using "SELECT modul" in a MySQL query in PHP, you are specifying a specific column (modul) to retrieve data from. This can be beneficial if you only need data from that particular column and want to optimize your query. On the other hand, using "SELECT *" retrieves all columns from the specified table, which can be less efficient if you only need data from a few columns. To implement the fix and use "SELECT modul" instead of "SELECT *" in a MySQL query in PHP, simply replace the asterisk (*) with the specific column name you want to retrieve data from. 

// Using "SELECT modul" in a MySQL query in PHP
$query = "SELECT modul FROM your_table_name";
$result = mysqli_query($connection, $query);

if(mysqli_num_rows($result) > 0) {
    while($row = mysqli_fetch_assoc($result)) {
        // Process the data from the 'modul' column
        echo $row['modul'] . "<br>";
    }
} else {
    echo "No results found.";
}

Keywords

SELECT modul * MySQL query PHP

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