QUESTION 3 a) Write a PHP program to calculate the total mark from the variable Smarkl and Smark2. Create a function called Cal_TotalMarks() by passing these variables to calculate the total marks . Declare Stotal as a global variable to display the total mark outside the function. b) Write a PHP Program to find the length of a string and counts the number of words in a string. c) Write the PHP code to open and read the first line of a file called "webdictionary.txt". d) Describe the following file functions. i fopen() ii. felose() iii. fgets() iv. file_exists() Write a PHP Code to create and display an associative array with the information shown as below in Figure 3. e) Product Code : 1001 Product Name : Iphone 13 Number of Products available : 15 Product Code : 1002 Product Name : Samsung Note 20 Number of Products available : 10 Figure 3: output

Q: Which of the following provides the best (strongest form of) authentication? O a. What a person has…

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Q: Which two encryption methods are most popular?

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Q: Why is elliptic curve cryptography advantageous?

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A: Dear Student, The answer to your question is given below -

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A:

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Q: I don't believe there is much of a difference between the two types of cryptography.

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A:

Types of Function

A function is a process or task that does some operation in the program. Some programming languages may contain built-in functions for certain commonly used tasks. Most programming languages also support user-defined functions, which means a user can write their own function to perform some operation. There are some libraries or header files that contain built-in functions for performing certain tasks.