Using an initialzed class inside a funtion without using global

[djones]

What is the best way to accomplish this? I need to reuse a class inside a function. Is it ok on performance to intialize the class again in the function? See below.

 

$oClass = new cClass();

// ... Use class for tasks ...

// Use class in function without passing $oClass
// Want to do this without having to initialize the class again. OR is this OK?
function nav($id){
  // Would not like to initialize class again.
  // $oClass = new cClass()
   // do stuff with $oClass

}

// I do not want to do this
function nav($id, $oClass)[

   // Do stuff with $oClass
}

[trq]

If the function requires the object the best thing to do is pass it in as an argument. Why don't you want to?

[premiso]

One reason he may not want to (which I am not 100% sure happens) is passing it as an argument creates a new object?

 

You may want to try and make the class global

 

global $oClass;
$oClass = new class();

function new($id) {
     global $oClass;
}

 

However, like I said, I am not sure if this is what you want or if it is considered good practice, but it is another option for you.

[trq]

One reason he may not want to (which I am not 100% sure happens) is passing it as an argument creates a new object?

 

No it doesn't. Objects are passed by reference by default.

[djones]

The reason why I do not want to pass it in the function is because the function will be a configuration function for a user, I was trying to make is as clean as possible. I did not want the user to have to worry about what the other variable was for.

 

// easier for user
function nav($id){}

// Do not wish todo
function nav ($id, $oClass){}

 

With that, is a global safe? Or should I re-initialize the class again in the function?

[trq]

globals are considered bad practice because they tie your function to an outside variable/object. If your function truthfully requires this object it may be best to instantiate it within the function.