Var_dump explain

Question

What is the use of var_dump function and why we need to use it?
It's description says that it is used to dump information about a variable but I don't understand what is the meaning of dumping a variable and why should we dump a variable and what will happen if we don't dump a variable?
And why it is used in laravel app?

Answer 1

var_dump is used for debug purpose. It returns the value and type of variable.
Here is a very simpe example:

https://code.sololearn.com/wpxT308c0mTC/?ref=app