Excuse me, ask a simple question.

Excuse me, ask a simple question.
var is_fans= ;

This is in JS write a sentence, PHP variable already have, I such assignment, will cause use Is_fans this JS variable time, in partial browser, cannot use.

Excuse me, have you ever encountered such a situation?

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See what's wrong with the console.
------Solution--------------------
var is_fans= ' ;

Try it with a single quote
------Solution--------------------
There should be no such situation. The server-side output is irrelevant to the browser. Check other code.
------Solution--------------------
It depends on what's in $guanzhu.
I can't guess, anyway.

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