Function to call my class functions

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Hi,

I guess i did not learn my fundamentals on php classes that well, but I would appreciate some help here.

I have been getting this error: Fatal error: Call to a member function myFunction() on a non-object ...

Basically i have a php class file with functions in it that works.

In my main file, I have instantiated the class and can call class functions successfully by

$myNewClassObject->myFunction("source");

However, I need to do some automation here so I happily put the line above into another new function in the main file like this:

function repeat()
{
   $myNewClassObject->myFunction("source");
}

Then i call it, also from the main file. This is when I get the error message.
Did i do something wrong, or is this not allowed?

I mean i could just do it in a more primitive way instead of a function, but i'm also curious in cases where I want to create a function, to call my class functions.

Sorry, hope my explanation's not too confusing.

Brian

Posted 25-Mar-11 23:09pm

funniezatee

Updated 25-Mar-11 23:35pm

OriginalGriff

v4

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OriginalGriff · Answer 1 · 2011-03-25T23:37:00

Solution 1

Do I take it myNewClassObject is part of your class? And repeat is not? So how can it access class instance objects? More repeat into your class definition, and all should be well...

Posted 25-Mar-11 23:37pm

OriginalGriff

Jonathan Cardy · Answer 2 · 2011-03-26T00:13:00

When you instantiate $myNewClassObject in the main file, you are doing it in the global scope. This means that the body of your repeat function doesn't have access to it. You can do either of the following:

1. Declare $myNewClassObject as global:

PHP

function repeat()
{
   global $myNewClassObject;
   $myNewClassObject->myFunction("source");
}

2. Make your entire main file into a class itself, with $myNewClassObject as a member variable which you can then access via $this->myNewClassObject. This avoids having globals which can get a little messy with large scripts.

markkuk · Answer 3 · 2011-03-25T23:38:00

Variables defined in your main program aren't visible inside functions by default. You must either pass the object as a parameter or declare the variable as global inside the function.
See: http://www.php.net/manual/en/functions.arguments.php[^]
http://www.php.net/manual/en/language.variables.scope.php[^]

Function to call my class functions

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