Welcome to WebmasterWorld Guest from 54.160.131.144

Forum Moderators: coopster & jatar k

Message Too Old, No Replies

PHP global variable

How to define a variable that keep the value alive in other file

     

guajiro

10:02 am on Jul 24, 2008 (gmt 0)

5+ Year Member



Hi All,

I'm very new in this php world and I'd really appreciate your help.

I have 2 files. a.php and b.php

a.php contains a variable ($x) value that I want to use in b.php

b.php executes a.php: require_once('a.php') but this is not enough to pass the $x value.

How can I set $x global in order to user its value trough the other file?

Sorry about the naive nature of this question.
Thanks in advance.

npwsol

2:32 pm on Jul 24, 2008 (gmt 0)

5+ Year Member



All you have to do is define the variable outside of a function; that makes it global. However, in order to use it INSIDE of a function, you need to declare it.

$g_szMyGlobalString = "Hello, World!"

function SomeFunction()
{
global $g_szMyGlobalString;

echo $g_szMyGlobalString;
}

d40sithui

3:23 pm on Jul 24, 2008 (gmt 0)

5+ Year Member



if you have $x in "a.php" (but not inside a function), you should have no trouble using it when you "include" it in "b.php". in the case that you do have it inside a function, you must declare it global like in the example above before you can "see" it in "b.php."
if you still have problems, feel free to post "a.php" and "b.php"
 

Featured Threads

Hot Threads This Week

Hot Threads This Month