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I have inherited some code in which the previous coder wrote this:
if (!not_null($page)) {
die('<b>Error!</b><br><b>Unable to determine the page link!<br><br>');
}
Is there any advantage to this, as opposed to just saying:
if (is_null($page))
It seems unnecessarily confusing to me.
not_nullmust be a local function.It is not a standard PHP function.