If a visitor mistypes a URL to your WordPress blog or clicks on a link that does not exists, you can show them a more helpful 404 error page that will have suggestions pointing to related articles that they can check out on your WordPress site.
You can use the Amazon Advertising API (AWS) to fetch the current prices, item description, customer reviews, product images, quantity available and other details of any product listed on various Amazon websites.
The Secure Passwords app generate unique passwords for every using the most secure bCrypt algorithm. The open source PHPass library also uses the Blowfish-based bcrypt library to create password hashes that you can use to store passwords in the database.
Use the following PHP code to determine all the locations (cities and countries) for which Twitter can offer local trends data
The Twitter API offers the Trends availability data in JSON format that you can parse with the json_decode function of PHP.