Page 196 - CITS - Computer Software Application -TT

COMPUTER SOFTWARE APPLICATION - CITS

Required Parameters:
Definition: Required parameters are values that must be provided when calling a function. These parameters are
essential for the function to execute properly.
Example:

In this example, the multiply function requires two parameters,` $a `and `$b`. When calling the function, you must
provide values for both parameters (5 and 3 in this case).
PHP Default Parameter Value
The following example shows how to use a default parameter. If we call the function setHeight() without arguments
it takes the default value as argument:
Example:

Variable-length Parameter Lists:
Definition: Variable-length parameter lists, also known as variadic functions, allow a function to accept an arbitrary
number of arguments. This is useful when you don’t know in advance how many arguments will be passed.
Example:

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CITS : IT&ITES - Computer Software Application - Lesson 47 - 62