Static variable index of PHP class

The use of static variables in PHP is wide, not only can we add static modifiers to the class, method, or variable, we can even add the static keyword to the function's internal variables. A variable with the static modifier added is not lost even after the function has finished executing, that is, the variable remembers the original value the next time the function is called.

Directly on the code

 
 PB = ++self:: $pa;    }} $a = new example; $b = new Example;echo $a->pb;echo '
 
 '; echo $b->PB;? >

It was supposed to be the result.

1 1

But I was wrong and the right result was

1 2

Foundation did not learn, quickly fill

The above describes the PHP class static variable index, including the PHP static variable, the content of the index, I hope the PHP tutorial interested in a friend helpful.

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