Function to load vars in PHP?

[Callme]

I made an app in PHP, where a large string of vars is loaded (and can be reloaded in certain instances to validate them).
Basically, I want to have a function where vars are loaded, but I don't want them to be global, because they need to stay in the validation functions.
So, I know this won't work, but this is what I want to do:
INSTEAD of this:
Code:
$var1 = $systemvars['var1']
$var2 = $systemvars['var2']
ect.....I WANT to do this:
Code:
function load_vars()
{
$var1 = $systemvars['var1']
$var2 = $systemvars['var2']
ect.....
}
function valid()
{
load_vars);
if (isset($var1 ))
echo "hi!";
}Thanks.

[Easywebdev]

You are beginning to get into enterprise application design.
You realise that "Global" variables are bad design and should be avoided.

So what to do?

There are two schools of thought as to how to handle global variables.

1) Store all global variables in an object that holds an array of objects and an array of variables. (a registry)

You can then pass this object to each function that needs its (dependency injection) or you can create a global registry.

The registry should contain all your applications global variables and be passed from one object to another.

Don't be tempted to create the registry as a singelton otherwise you might as well use $_global['key']=$somevar.

2) use the global super array for what it was intended to do. $_global['my_var'] = $my_var.

The java/php oop purists will tell you that global variables are evil, and they are, but there are multiple ways of passing a single object that "contain" these "evil" variables. The bottom line is to use what you feel comfortable using.

[Chiefos]

Callme I think what your after is a means of setting a buch of variables and having methods appropriate to these vars without having the variables declared gloabally (Note that when I say globally I dont mean in the $_globals array but globally within the variable scope of the page).

Basically what I think you need to look at is a little basic OOP, here you can declare properties which are only avaliable in the scope of that object instance so in your case:

N.B. Its been a while since ive done php so syntax may be wrong:

<?php

class SomeClassWithVariablesToValidate
{
$Var, $Varb, $Varc;

public __Construct()
{
$this->ResetVariables();
}
public ResetVariables()
{
$this->Var = 0;
$this->Varb = 1;
$this->Varc = 2;
}
public Validate()
{
if($this->Var!=null && this->Varb!=null && this->Varc!=null )
return true;

return false;
}
}


//Test usage
$pointlessClass = new SomeClassWithVariablesToValidate();

if($pointlessClass->Validate())
echo "Validated";
?>