PHP : Get variables outta the function

[akazukin]

G'day, everybody...

My code messed up as the variables set within a function cannot be accessed outside it. How to make the variable set inside a function accessible outside the function??

- Jeremy

[Misja]

There are 2 ways:

1. return the variable (you can also return an array of vars):
<BLOCKQUOTE><font size="1" face="Verdana, Arial">code/font><HR><pre>function test(){
$varname=1;
return varname;
}[/code]


2. Make the var global
<BLOCKQUOTE><font size="1" face="Verdana, Arial">code/font><HR><pre>
$varname=1;
function test(){
global $varname;
$varname=2;
}[/code]

Misja



[This message has been edited by Misja (edited July 28, 2000).]

[antti]

Declare the variables global inside the function. For example:

<BLOCKQUOTE><font size="1" face="Verdana, Arial">code/font><HR><pre>function test ()
{
global $test_value, $test_value2;
$test_value = "testing";
$test_value2 = " scope";
}

function test2 ()
{
// declare the variables global
global $test_value, $test_value2;
// prints "testing scope" if the variables have been set
echo $test_value . $test_value2;
}

// doesn't print anything
echo $test_value . $test_value2;

// doesn't print anything
test2 ();

// call the test() function
test();

// this will print: testing scope
echo $test_value . $test_value2;

// this will print: testing scope
test2 ();[/code]


------------------
Antti
Huotari.com/antti/
LinuxWebDevNews.com

[Karl]

There are other ways as well you can pass the variable into the function by reference:
<BLOCKQUOTE><font size="1" face="Verdana, Arial">code/font><HR><pre>
function ( &$myvar1, &$myvar2 ) {

$myvar1 = 1;
$myvar2 = 2;

}
[/code]

------------------
Karl Austin
KDA Web Services
"Everyone has a photographic memory. Some just don't have film."