About PHP Global custom variable Solution!

The concept is still unclear, use do not understand, stupid person!!!
I want to write a whole station global variable, in which class can be shared
For example, I initialize the global variable in Class A, then I can read and write in other classes to share the variable, ask which boss write an example, grateful!!!

Reply to discussion (solution)

Use Session or Cookie

Then you just write a base class, declare a variable ...

Then you just write a base class, declare a variable ...

For example, thank you!!!

Use the global reference in the method of the class
Like what

$a = "123"; class dd{   function Show () {     global $a;     $a = "CC";   }} Class cc{   function Show () {     global $a;     return $a;   }} $d = new DD (), $d-and show (), $c = new CC (), Echo $c-show ();

You can see that the result of the final output is CC

 
  Initname ("Phper");//Instantiate class two $b = new Son2class ();//Get $name value $name = $b->index ();//Initialize a Son1class value in $name, can also be called in Son2class. Echo $name; Output Phper

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