How does one call a subroutine in PHP?

[Anon]

From one PHP script (a.php), is it possible to 'call' a second PHP script (z.php - as a subroutine), passing arguments from a to z and retrieving variables back (z to a), then continuing the a.php script?

[sourcecode]

It's possible to use another script's function:

a.php
include ("z.php");
$str = _error("not found");

z.php
function bin_laden($param) {
return "/bin/laden: $param<br>";
}

I don't know if this can solve your problem, but you can always permutate values by using return().

[Anon]

Of course, you can also use the main body of z.php through include, if you call corresponding variables in a.php and z.php with similar names. Then their values will change during execution of the include and you\'ll have to do nothing to retrieve these values.