About access modifiers in php oop

/*
The following two methods have the same effect of declaring access permissions
*/
function say(){};
publilc function say(){};

When a member of a class is When declared as a public access modifier, the member can be accessed and manipulated by external code. private Members defined as private are visible to all members within the class and have no access restrictions. Access is not allowed outside the class. protected Protected is a little more complicated. Members declared as protected only allow access by subclasses of the class.

Access permission table: access rights public protected private All ★ Subcategories ★ ★ Within category ★ ★ ★