Learn PHP Tutorial 14 Function with Default Arguments
This video is made for learning about Function with Default Arguments in PHP.
PHP functions are similar to other programming languages. A function is a piece of code which takes one more input in the form of parameter and does some processing and returns a value.
Function arguments
Information may be passed to functions via the argument list, which is a comma-delimited list of expressions. The arguments are evaluated from left to right.
PHP supports passing arguments by value (the default), passing by reference, and default argument values. Variable-length argument lists are also supported.
Default parameters
When designing your functions, it is often helpful to be able to assign default values for parameters that aren't passed - PHP does this for most of its functions, and it saves you having to pass in parameters most of the time if they are usually the same.
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