Functions

[acey99]

is there a way for someone to write a function with optional parameters??

eg :

myfunction(option1[,option2]) {
#
}

😕

[notionlogic]

Not so much optional parameters but you can specify default values like this...

function myFunction(param1, param2="", param3="something")
{
}

Just remember that the optional parameters (the ones with default values) must be at the end of the list otherwise it won't work! 🙂

[acey99]

I was hoping to define a function like the one I described so I could call it

myfunction("data");
or
myfunction("data","data2");

[notionlogic]

but you can!

function myFunction($var1, $var2="")
{
if ($var2=="")
{
// do something
}
else
{
// do another thing
}
}

Not really "function overloading" I know but close enough for me! :p

[acey99]

I've tried.

with error_reporting = E_ALL & ~E_NOTICE

I get :

Warning: Missing argument 2 for myfunction()

I know it's just a warning, but I don't like any type of error...

[rubric]

notionlogic's reply should have worked perfectly, but if you absolutely have to, why don't you just send it an array!!!

//make the array before you send it to the function:

$data[0] = "this";
$data[1] = "that";

//....

function myfunction($data)
{
   foreach ($data)
   {
        // do something to each variable in array
   }
}

This way, you can send it a hundred variables if you wish.

Enjoy.

Rubric