On Wednesday 18 June 2008, Luke Palmer wrote:
> I don't know that much PHP, but I find the "lexical" keyword to be a
> nuisance. What are the semantics if the lexical keyword is omitted?
In PHP Variables are local by default, the keyword global defines them as
references to the global namespace.
There are some exceptions, like the availability of $this in methods or a
couple of predefined superglobal variables that are implicitly global in all
functions.
<?php
$globalVar = 1;
$param = "notshared";
$localVar = "notshared";
function foo ($param) {
global $globalVar;
$localVar = (int) $param;
return $localVar + $localVar;
}
?>
Given how much it works like "global", the keyword "lexical" seems quite
consistent with the style of PHP.
Gesundheit
Wag
--
There’s a phrase we live by in America: “In God We Trust”. It’s right there
where Jesus would want it: on our money.
- Steven Colbert
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