you can't declare "global" outside of a function,
all variables declared outside of functions are "Global" by design
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global variables declared outside of function
can someone please remind me what is the scope of a variable declared global outside of all functions within PHP
i understand what global $count; means inside of a function but don't understand what global $count means outside of all functions - i must be missing something;
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Answers
The use of the 'global' keyword outside of a function has no meaning, and should not be used. Any variable declared in the main body of a script (outside a function) is global in scope.
The one caveat is if the script you are viewing is included into another script within a function. For example:
<?php
$myVariable = 1;
function myFunction()
{
include "myScript.php";
}
?>
And then 'myScript.php' is:
<?php
global $myVariable;
echo $myVariable;
?>
This is actually valid. Rarely used, perhaps, but valid.
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by: Catcherman16Posted on 2008-08-20 at 06:34:09ID: 22269212
well, at least in java, when you have a global variable outside of all functions, that means that ANY function can use that variable. However, say you use have 2 different fuctions, one called "add" the other "subtract", if you store information in the global variable "total" while in the "add" function, it will NOT hold the same value if you try to use it in another funciton like "subtract"