Chapter

Calling Functions

From ComputerScienceOne by Dr Chris Bourke

Concepts

1. What happens when a PHP function does not return a value?

   "value (you do not use the keyword void ). In practice, however, the function ends up returning null when doing this."

2. How can PHP functions be organized in separate source files?

   "40.1.2. Organizing Functions There are many coding standards that guide how PHP code should be organized. We’ll only discuss a simple mechanism here. One way to organize functions is to collect funct

3. How do you call a function in PHP?

   "40.1.3. Calling Functions The syntax for calling a function is to simply provide the function name followed by parentheses containing values or variables to pass to the function. Some examples: 1 $a