[SOLVED] really quick variable scope question

[Lodius2000]

to call a function defined in 1 function within the definition of another function you need a global line right

 

ie

<?php

function blah(){
$a = "howdy world";
}

function bleh(){
global $a;

//prints howdy world
print $a;
}
?>

 

sorry dumb question I know but its been a while for this sort of thing

 

Thanks

[ratcateme]

<?php
function blah(){
$a = "howdy world";
}

function bleh(){
global $a;

//prints howdy world
print $a;
}
bleh();

will output nothing as $a is local to blah and not global to the whole script

<?php
function blah(){
global $a;
$a = "howdy world";
}

function bleh(){
global $a;

//prints howdy world
print $a;
}
bleh();

will still not work because the value of $a is never set even though it is global in both in functions

but:

<?php
function blah(){
global $a;
$a = "howdy world";
}

function bleh(){
global $a;

//prints howdy world
print $a;
}
blah();
bleh();

will output "howdy world" because the global variable $a is set in blah() then read in bleh()

 

Scott.

[Lodius2000]

gotcha