[<?Wille?>]

hi.. i was wondering how to make optional arguments in functions..
i have a function that needs 3 arguments, say page, pagelimit, table.. but then in some cases i need it to take 2 more: wherecol, whereval..

call and function:

PHP Code:

#call nr.1

echo pagelinks($page, $pagelimit["$subject"], $subject); 

# results in warning: arg 4 and 5 missing



#call nr.2

echo pagelinks($page, $pagelimit["$subject"], $subject, "fid", $_GET['fid']);

# works fine



function pagelinks($page, $pagelimit, $table, $wcol, $wval) 

ideas??

thanks
Wille

[xml]

Code:

function pagelinks ($page, $pagelimit, $table, $wcol, $wval) {
  if ($page && $pagelimit && $table && $wcol && $wval) {
    'DO PROCESSING WITH ALL ARGUEMENTS
  }

  elseif ($page && $pagelimit && $table && !$wcol && !$wval) {
    'DO PROCESSING WITH ONLY $page, $pagelimit and $table ARGUEMENTS
  }
}

Hope this helps.

[mikaelf]

only by assigning optional arguments with empty string, you'll able to control code flow in the the function.
eg:

PHP Code:

function pagelinks($page, $pagelimit, $table, $wcol = '', $wval  = '') {

    if($wcol == '' && $wval == '')

     //Control goes here

    else

      //Control for full arguments

} 

Function call:

PHP Code:

#call nr.1 

echo pagelinks($page, $pagelimit["$subject"], $subject); 

#call nr.2 

echo pagelinks($page, $pagelimit["$subject"], $subject, "fid", $_GET['fid']); 

[<?Wille?>]

Originally Posted by mikaelf

PHP Code:

function pagelinks($page, $pagelimit, $table, $wcol = '', $wval  = '') {

    if($wcol == '' && $wval == '')

     //Control goes here

    else

      //Control for full arguments

} 

thats the way.. thanks