unpacking operator ** will do the job . ** operator is used to unpack dictionaries now dict1 is 'c': 3, 'd': 4',,'a': 1, 'b': 2'

To redirect in CodeIgniter (CI), you can use the redirect() function provided by the url helper. Here are the steps to redirect to a different page: Load the url helper in your controller. You can do this by adding the following code to your controller's constructor or method: The first parameter (base_url()) is the URL to redirect to, the second parameter ('location') is the type of redirect, and the third parameter (301) is the HTTP status code. Note that you can also in CI, but it is recommended to use the redirect() function provided by the url helper as it performs additional checks and validations.

To programmatically set the value of a select box element in JavaScript, you can set the value property of the select element to the value of the option you want to select. Here's an example: In this example, we have a select box with three ". You can modify the code to select a different option or set a different value based on your specific needs.

You can use a PHP variable in the WHERE clause of a () function to escape any user input used in the query. Also, be careful to properly quote and format the variable in the SQL query string. If the variable is a string, it should be enclosed in quotes in the query. If the variable is an integer or other numeric type, it should not be enclosed in quotes.

To properly escape the order by query in CodeIgniter, you can use the escape() method provided by the database class. The escape() method properly escapes the column name and direction to prevent SQL injection attacks. Here's an example of how to escape the order by query in CodeIgniter: In this example, replace 'column_name_1' and 'column_name_2' with the names of the columns you want to order by. The escape() method ensures that any special characters in the column names are properly escaped. By properly escaping the order by query, you can help prevent SQL injection attacks and ensure that your code is secure.

Using transactions in MySQLi can be useful in situations where you need to execute multiple queries as a single unit of work, ensuring that either all the queries complete successfully, or none of them do. Here's an example of how to use transactions with MySQLi in PHP: In this example, we start by creating a new MySQLi instance and checking for connection errors. We then start a transaction using the begin_transaction() method. We execute the first query inside the transaction, checking for errors and rolling back the transaction if necessary. We then execute the second query, again checking for errors and rolling back the transaction if necessary. Finally, we commit the transaction using the () method. Using transactions in MySQLi can help ensure that your database stays in a consistent state, even if errors occur during the execution of multiple queries.

will return an empty string if there is no referrer. This can happen if the user typed the URL directly into the address bar or if the referrer was blocked by the user's browser or a privacy extension.

In Django, there are several ways to view error logs depending on your configuration and preference. Some of the common methods are: 1.Console output: When you run a Django server using the setting that writes logs to both a file and console output: By setting up logging in Django, you can capture detailed error information and diagnose issues in your application.

Sure, here's a possible rewritten version: To execute a MySQL stored procedure in PHP, there are two extensions available to use, which are :

The main function of a procedure P is to perform a specific task or set of tasks. Procedures are subroutines or routines in programming that are designed to perform a specific task or a set of related tasks. Procedures are defined with a name and a set of parameters, and can be called by other parts of a program to perform the task they were designed to do. They can also be used to break down larger, more complex tasks into smaller, more manageable pieces. In general, the main function of a procedure is to provide a modular, reusable way to perform a specific task or set of tasks, and to make programming more efficient and organized. Procedures can also help to reduce code duplication, improve code maintainability, and make it easier to debug and troubleshoot code.

. You will likely struggle to understand React and make progress in your learning. Therefore, it is highly recommended that you first learn JavaScript before moving on to learn React. There are many resources available online for learning JavaScript, including tutorials, courses, and books. Once you have a good understanding of JavaScript, you can then start learning React and building more complex and interactive user interfaces.

to convert stdClass object to Array use json_encode and json_decode json_encode convert the object to a string and again decode JSON string to the array by json_decode.

Use python to do api call, and grab the API key , API secret key , Access token , Access token secret , you need it later. 2. install Tweepy python library , do it by following command :

" to load the page . in the Reconciliation process, React use virtual Document Object Model, or virtual DOM to load DOM efficiently as per state changes 2. React render only subcomponents that actually change. by loading selective subcomponents, React provides very good performance. in another hand jQuery load after HTML DOM ready and work direct with HTML DOM element which is slow . React use React Fiber algorithm which is very fast and powerful

to improve the speed at Google PageSpeed insights, I tried lazy loading for images, it will not load images until dom ready . so yes its improved the speed of the page at Google PageSpeed insights. but after 3 months, I lost ranked at Google search enginee. hmm, I don't think Google likes lazy loading, it's from my personal experience. It's what happens to me not sure about the others.

Use Pandas to read CSV if you are working with predication, Pandas have many other good features which good to handle data just two lines of code read CSV and give very easy data structure in return

will returns True or False it will print False because i and j are equal and its False

: Python have many way to reverse the string i use while loop to do it so , concept is every string is made of array of character .

the latest PHP version is

in php rand() function will give you random number in the given range