References in PHP5

[[Mystic]]

Hi

I was just wondeirng how they work now, esspically regarding functions and
return values.

Do functions pass return by value or reference?

Concidering the following:

public static function &getInstane() {
static $database_object; // reference object

if (!is_object($database))
$database_object = new database(); // create new object

return $database_object; // return address of object
}

Do I need to return $database_object; or return &$database_object;

or

When calling the function:

$test = &database::getInstane()
or
$test = database::getInstane()

Thanks

[Rutger Claes]

"[Mystic]" <screwuspammer> wrote:

Hi

I was just wondeirng how they work now, esspically regarding functions and
return values.

Do functions pass return by value or reference?

Concidering the following:

public static function &getInstane() {
static $database_object; // reference object

if (!is_object($database))
$database_object = new database(); // create new object

return $database_object; // return address of object
}

Do I need to return $database_object; or return &$database_object;

or

When calling the function:

$test = &database::getInstane()
or
$test = database::getInstane()

Thanks

PHP 5 passes by reference. As far as I know you don't need to use the &
anymore.

Rutger
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[Mark]

"[Mystic]" <screwuspammer> wrote:

Hi

I was just wondeirng how they work now, esspically regarding functions and
return values.

Do functions pass return by value or reference?

Concidering the following:

public static function &getInstane() {
static $database_object; // reference object

if (!is_object($database))
$database_object = new database(); // create new object

return $database_object; // return address of object
}

all objects in PHP5 are passed by reference (well, sort of -- only a copy
of the handle to the object is made, so you're still working on the same
underlying object), so you do not need to use the & at all.

as for other types, such as ints or bools, then you will still need to use
the TWO &s and do:

function &fun_name()
{
static $spooge;
return $spooge;
}

$spludge = &fun_name();
domo,
mark.
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