[SOLVED]get value from function

Lee · #1 (**permalink**) 08-07-2007, 09:46 AM

Hey,

I know theres some PHP geeks here

I have a simple question that i cant find an answer for.

example function:

PHP Code:

  function test_func()
{
//Do some things here
$Value = "Result in here"
}

I then want to echo the result to the page but thats where i can not get things to work, what do i have to do to get this value to echo?

An example would really help me then i can see what i need to do or if i am doing something wrong?

Thanks,
Lee.

HelloWorld · #2 (**permalink**) 08-07-2007, 09:54 AM

Sorry, I don't really understand what you're trying to do, but why don't you just do this:

PHP Code:

  function test_func()
{
//Do some things here
$Value = "Result in here"
echo $value;
}  
test_func();

Lee · #3 (**permalink**) 08-07-2007, 10:04 AM

Sorry for being unclear, i meant echo value to be an example the real use of this will be used within another functions like:

PHP Code:

  func_two($value)

Sorry for being unclear.

HelloWorld · #4 (**permalink**) 08-07-2007, 10:07 AM

Try this one:

PHP Code:

  function test_func($value)
{
echo $value;
}  
$value = "Hello World";
test_func($value);

Hopefully that helps

Lee · #5 (**permalink**) 08-07-2007, 10:14 AM

I will give more infomation, here is my current code:

PHP Code:

      function GetSubject()
    {
        $reason = $_POST['reason'];
        $subject = "Noobio Contact $reason";
    }

//When i run i call by using
GetSubject();

Once that code is run i want to be able to use $subject in the mail function:
mail()

Where as using echo will write it to the page.

TeraTask · #6 (**permalink**) 08-07-2007, 12:48 PM

PHP functions are very much like functions in other languages with the exception that you don't have to declare the return type.

Let's say that I have a function called getSubject that does the processing to determine the subject of an email and I want to 1) use it in the subject line of an email and 2) return to the end user the results. This code could look like this:

PHP Code:

  <?php
function getSubject() {
  //process the subject and store it in a variable, $subject;
  return $subject;
}

//Send the email.  notice that since $subject is returned by getSubject(), it's value is being passed directly to the mail function
mail ($to,getSubject(),$body);

//Confirm to user:

echo "Your email to $to has been sent.  The subject was <u>".getSubject()."</u> and the body was <textarea style=\"width:100%;height:8em;\">$body</textarea>";
?>

Now, that calls the function twice which may be undesirable, so you could also do this:

PHP Code:

  <?php
function getSubject() {
  //process the subject and store it in a variable, $subject;
  return $subject;
}

$calculated_subject = getSubject();

//Send the email.
mail ($to,$calculated_subject,$body);

//Confirm to user:

echo "Your email to $to has been sent.  The subject was <u>".$calculated_subject."</u> and the body was <textarea style=\"width:100%;height:8em;\">$body</textarea>";
?>

There are a few other ways of achieving the same task, but I think this addresses your question.

Lee · #7 (**permalink**) 08-07-2007, 02:52 PM

See i knew it was something simple but i just couldnt think of it, i am not experinced with php as you may have guessed.

The first one would have done but i am thinking when it comes to my full written script that i will use it 2 times so that 2nd one is just perfect, i cant believe i didnt think of that.

Thanks very much.
Lee.

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