The document discusses 11 PHP programming practical exercises involving functions. The practicals cover functions with and without arguments, default arguments, variable scope, dynamic calls, anonymous functions, passing functions as arguments, returning functions, recursion, nested functions, function chaining, and passing by value vs reference. Each practical provides the aim, program code, and output.

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WEEK 7
Functions in PHP
Practical 1
 Aim:Function with and without argument.
 Program:

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 Output:

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Practical 2
 Aim:Function with Default argument.
 Program:

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 Output:

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Practical 3
 Aim:Scope of variable in Function (local, global, static).
 Program:

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 Output:

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Practical 4
 Aim:Dynamic Call of Function.
 Program:

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 Output:

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Practical 5
 Aim:Anonymous Function.
 Program:

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 Output:

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Practical 6
 Aim:Passing Function as Argument to another function.
 Program:

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 Output:

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Practical 7
 Aim:Returning Function from another function.
 Program:

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 Output:

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Practical 8
 Aim:Recursive Function: Factorial.
 Program:

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 Output:

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Practical 9
 Aim:Nesting of Functions (Function call another function inside function body).
 Program:

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 Output:

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Practical 10
 Aim:Function Chaining.
 Program:

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 Output:

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Practical 11
 Aim:Pass by value vs Pass by Reference.
 Program:

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 Output: