Static variable indexes of PHP classes

: This article mainly introduces the static variable index of the PHP class. if you are interested in the PHP Tutorial, refer to it. PHP has a wide range of static variables. we can not only add static modifiers before classes, methods, or variables, but also add static keywords to internal variables of the function. The variable with the static modifier is not lost even after the function is executed. that is to say, the variable still remembers the original value when the function is called the next time.

Directly add code

 Pb = ++ self: $ pa; }}$ a = new example; $ B = new example; echo $ a-> pb; echo'

 '; Echo $ B-> pb;?>

Originally, the result should be

1 ------------------------------------------------------- 1

But I am wrong. the correct result is

1 ---------------------------------------------------------------------------------- 2

I have not learned the basics well. make up for it now.

The above describes the PHP static variable indexes, including the PHP static variables and indexes, and hopes to help those who are interested in the PHP Tutorial.