PHP using vars inside a function without pasing param - php

Question

In the following code; is there a way to use the vars inside the function without having to pass them as params?
$var1 = 'test';
$var2 = 'another';
function testing(){
print $var1;
}
I read up on the php global's but wasn't sure if it was a good idea.
I have an ajax call that gets about 25 vars and replaces the tags in the body of an email where the placeholders are.
The sendEmail piece is in a function and needs access to the outside vars to be able to replace the content.
Without having a function(){} with 25 vars in it, is there another way to acomplish this?
UPDATE
Here is a sample snippet of my code; the reason why I am trying to do this.
http://pastebin.com/8qYsLg5T

Answer 1

You can do as the answer above make vars global.Kinda bad practice and you will end up overwriting them if you re use them and it makes them available for attacks.
What you should be doing(is writing them out) but if that is to much then making the vars an array then passing them as an array. Chances are your getting the data in an array form.
$vars = array(
'varname1' => 'var_value1',
'varname2' => 'var_value2',
'varname3' => 'var_value3',
);
do_stuff_with_vars($vars);
You could quickly create an array as someone else here suggested by using compact.
compact(var,var2,etc);
Your function should look something like
function do_stuff_with_vars($array){
//do stuff with array["varnameX"]
}

Answer 2

You can use compact() to put all of the variables in an array, then pass that to your function.
<?php
$data = compact($var1, $var2, $var3, $var4);
testing($data);
function testing($data) {
print $data['var1'];
print $data['var2'];
// Or, if you don't want to use an array here, use extract() to do the
// opposite of compact():
extract($data);
print $var3;
print $var4;
}

Answer 3

$my_array = array(
'element1' => $var1,
'element2' => $var2
);
function testing($my_array){
print $my_array['element1'];
// or use foreach()
}

Answer 4

The best way is using oop
class A {
public $var = 'test';
public $var2;
public function test(){
print $this->var;
}
}
$a = new A();
$a->test();

Answer 5

$var1 = 'test';
$var2 = 'another';
function testing(){
global $var1;
print $var1;
}

Answer 6

You shouldn't use globals, use OOP. You could create a class as a holder for the 25 parameters and use them from your send function
class MyMail {
public $user;
public $subject;
public $body;
public function send() {
// do the send
mail($this->user, $this->subject, ...);
}
}
$mailSender = new MyMail();
$mailSender->user = 'a#b.com';
$mailSender->subject = 'Hello';
$mailSender->send();