What are the best practices for combining multiple conditions in a PHP query?

When combining multiple conditions in a PHP query, it is best practice to use the logical operators "AND" or "OR" to connect the conditions. This helps to ensure that the query accurately reflects the desired criteria for retrieving data from the database. Additionally, using parentheses to group conditions can help clarify the order in which the conditions should be evaluated.

// Example of combining multiple conditions in a PHP query
$query = "SELECT * FROM table_name WHERE condition1 AND condition2 OR condition3";
$result = mysqli_query($connection, $query);

// Another example with parentheses to group conditions
$query = "SELECT * FROM table_name WHERE (condition1 OR condition2) AND condition3";
$result = mysqli_query($connection, $query);