Difference between Function Declaration and Function Call
| Function Declaration | Function Call |
|---|---|
| Defines the structure and behavior of a function | Invokes the function to execute its defined behavior |
Begins with the function keyword followed by the function name and parameters (optional) |
Consists of the function name followed by parentheses containing any required arguments |
| Contains the code to be executed when the function is called | Triggers the execution of the function’s code block with specified input values |
How to Declare and Call a Function in PHP ?
In PHP, functions are blocks of reusable code designed to perform specific tasks. They enhance code organization, promote reusability, and improve readability by encapsulating logic into named units. Declaring and calling functions in PHP involves defining the function using the function keyword, specifying any parameters it may accept, and then invoking the function when needed within the script.