How to setup site-wide variables in php? | I want to define something like this in *php*:



```
$EL = "\n<br />\n";

```

and then use that variable as an "endline" marker all over my site, like this:



```
echo "Blah blah blah{$EL}";

```

How do I define $EL once (in only 1 file), include it on every page on my site, and *not* have to reference it using the (strangely backwards) `global $EL;` statement in every page function?