Variable scope in php

The scope of a variable in php , which is controlled by the location of the variable’s declaration, determines those parts of the program that can access it. There are four types of variable scope in PHP: local, global, static, and function parameters Local scope A variable declared in a function is local to that … Read more

The term scope refers to the places within a script where a particular variable is visible. The six basic scope rules in PHP are as follows: Built-in superglobal variables are visible everywhere within a script Constants, once declared, are always visible globally; that is, they can be used inside and outside functions Global variables declared … Read more