php function use parameter if set

[ttmt-73]

Hi all

 

Is it possible to have a function with two parameters but and then check if one is passed before using it.

 

In this code here I want to remove spaces and change to lowercase.

 

If the $extra parameter is set I want to add that to the end of the string.

 

 

function className($nametoUse, $extra){

    $noSpace = str_replace(' ', '', $nametoUse);

    $toLower = strtolower($noSpace);

 

    if(!empty($extra)){

        $classtoUse = $toLower." ".$extra;

    }else{

        $classtoUse = $toLower;

    }

 

    return $classtoUse; 

  }

 

 

[Barand]

Define the function as

function className($nametoUse, $extra='' ){
 ...
}

Then the extra parameter is optional, and empty if you do not provide it.

[Frank_b]

instead of an empty value you may also set a default value:

 

function  round($number, $decimals = 2 ){
 ...
}

[cyberRobot]

In addition to the suggestions provided already, there are more options available in the manual:

http://php.net/manual/en/functions.arguments.php