How can warnings be prevented when using mysqli_query in PHP?

When using mysqli_query in PHP, warnings can be prevented by checking the return value of the function for errors. If an error occurs, you can handle it appropriately by displaying an error message or logging it. This can help ensure that your code runs smoothly without any unexpected warnings. 

// Perform a mysqli_query and check for errors
$result = mysqli_query($conn, $sql);
if (!$result) {
    // Handle the error, for example:
    echo "Error: " . mysqli_error($conn);
}

Keywords

mysqli_query PHP warnings error handling mysqli_errno

Related Questions