How to get Cookie value resolution

Get Cookie Value
index.php

HTML Code

main.php

PHP Code

  
  Setcookie ("L_cookie", "Cookie Value");

I now want to get the cookie value in the index.php, how can not obtain ah????
I am the direct echo $_cookie["L_cookie"

------Solution--------------------
Don't say index.php.

Main.php is not the value, unless you setcookie, immediately after the assignment


Either put in a index.php, assign a value, or use JS to take a value
------Solution--------------------
The cookie is set to be stored to the client after the current request is completed, so the current set cookie value is not available during the request (the request is not completed) and only the cookie value set at the last access is taken.
Like upstairs said, the refresh is there, equivalent to the 2nd visit time to obtain the first access to set the cookie

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