function small problem

[robert_gsfame]

I just want to compare this two functions

<?php

 

function myfunction($x)

{

  if($_GET['x']==$x)

  {

    return "SELECTED";

    }

}

 

 

echo "<option value='test'".myfunction('test').">TEST</option>";

 

?>

 

=======================================================

<?php

 

function myfunction($x)

{

  if($_GET['x']==$x)

  {

    echo "SELECTED";

    }

}

?>

<option value="test" <?php myfunction("test");?>>TEST</option>

 

* Assume that $_GET['x']=="test"

 

My question:

I try to use echo for the first case and option didnt SELECTED until i use return

 

Same thing with the second one, where i have to use return instead of echo

 

can anyone simply explain this

thx

 

 

[BlueSkyIS]

return means to return the value from the function. echo means to print the value to screen.