PHP - Calling functions with multiple variables -

this seems basic question know i've not been able find answer.

let's assume basic function:

function basicfunction ( $var1, $var2 = 1, $var3 = 2, $var4 = 5 ) { // stuff // return } 

now let's assume want call function following variables:

$var1 = 0  $var2 = 1  $var3 = 2  $var4 = 3 

i can this:

$someresult = basicfunction( 0, 1, 2, 3 ); 

$var2 , $var3 set though, how call function without having repeat value $var2 , $var3?

php not support overloading. therefore, cannot skip them in way if don't move them right of list of arguments.

a common solution set default value of different type expected (i.e. null). actual default value set within function. approach not clean , takes lines of code, if situation requires it, can go this:

function basicfunction($var1, $var2 = null, $var3 = null, $var4 = null) {     if ($var2 === null) {         $var2 = 1;     }      // ...