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Describe when and why you should use PHP (as a server-side programming language). Why a client-side...

  • Describe when and why you should use PHP (as a server-side programming language). Why a client-side programming language (like JavaScript), not enough?
  • Also, is it generally safe to keep credentials like the Database passwords in PHP source code? Why? Compare that to doing the same thing in JavaScript.
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Answer:

PHP

JavaScript
  1. PHP is a server-side scripting language.
  1. JavaScript is a client-side scripting language.
  1. PHP embedded with HTML and provides custom web content, cookies, and a data facility.
  1. JavaScript is used to create dynamic and interactive HTML pages.
  1. PHP needs to be installed before use.
  1. JavaScript interpreter comes inbuilt in browsers.
  1. PHP is used to querying the database, operation over the database, write or access a file on the server.

4.    JavaScript sends requests to the server for data, acts as an interface between server and user.
  1. PHP is a structured web application.

      5.    JavaScript is single-threaded.
  1. PHP is synchronous, it waits for input/ output operations.

       6.   JavaScript is asynchronous, it doesn’t wait for I/O operations.

PHP language is more secure than JavaScript because PHP code is not visible in the web browser while JavaScript code is visible in the web browser. javaScript code is vulnerable and prone to security risks.

Security Analyzer tool such as Secure Security Layer (SSL) and Hypertext transfer protocol secure(HTTPs) is used to secure the javaScript code.

This scripting also allows the website owner to hide the source code that generates the interface. Server-side can query database requests for data.

SSL and HTTPs are costly, so JavaScript code is costly to secure. While PHP language provides security.

So database password credentials are safe to keep in PHP source code.

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