Describe how syntax errors occur in php, PHP Web Programming

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Question:

(a) Describe how syntax errors occur in PHP. Illustrate your answer with extract codes.

(b) Explain two methods that might be used to control sessions in a web based application. Explain the shortcomings of each method.

(c) Using the concept of Sessions in PHP, write extract codes which maintains the value of a variable when a page is revisited by a user.

(d) Write a PHP program to determine and display the factorial of any number entered into a Text Box field.

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