count each time the function runs

[majortom84]

Write a function Counter() that keeps track of the number of times it is called. This function should not take any parameters and return the number of times that it has been called.

Example:

echo Counter();//1

echo Counter(); //2

 

 

I think I would go like this...

 

$count = 0;

function Counter() {

  $count = $count + 1;

}

 

Is this too simple? Am I doing it wrong

[Jacques1]

Well, you have tried it? What does it say?

[majortom84]

no its just keeping $count at 0

[majortom84]

//$count = 0;

//static $counter = 0;

function Counter() {

global $counter;

$count = $count + 1;

return $count;

}

echo Counter();

echo Counter();

echo Counter();

 

got it to ... 111 with this so i hope im getting closer. I will keep at it

[majortom84]

function Counter() {

static $count;

$count++;

return $count;

}

echo Counter();

echo Counter();

echo Counter();

 

GOT IT !!! 123

[requinix]

Jacques1 was hoping you would reply with something like

It doesn't output anything but I do get an error message about an undefined variable

If that's half true then you don't have your environment set up to tell you about problems: find your php.ini, set

error_reporting = -1
display_errors = on

and restart your web server. Then try the script and see what you get.

 

There's no output because Counter() doesn't return anything to output. You get the undefined variable warnings because $count, while defined outside the function, is not defined inside the function. You don't get that variable for free.

The global thing is one solution but you should avoid it. I personally would have suggested the static $count thing you have now.