What are best practices for handling SQL queries in PHP to avoid errors like "Query was empty"?

When executing SQL queries in PHP, it's important to ensure that the query is not empty before executing it to avoid errors such as "Query was empty". One way to handle this is by checking if the query string is not empty before executing it using functions like `strlen()` or `empty()`. 

// Check if the query is not empty before executing it
$query = "SELECT * FROM users";
if (!empty($query)) {
    $result = mysqli_query($connection, $query);
    if ($result) {
        // Process the query result
    } else {
        echo "Error executing query: " . mysqli_error($connection);
    }
} else {
    echo "Query is empty";
}

Keywords

SQL queries PHP error handling mysqli query validation

Related Questions