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Thread: Getting variables from functions

  1. #1
    Join Date
    May 2010

    Question Getting variables from functions


    I am still trying fully grasp functions in php. I wrote a script that picks a random number between 1 and whatever number is entered when calling the function. I can echo the number it creates in the its function and then I call it to get the number echoed. I am trying to randomly display an image from a folder. But I can not call the variable and its really weighing me down because I want get the images size with getimagesize. I have tried global but its not working. Any help would be great.

    Thanks so much

    Here is what I have and tried commented out:
    PHP Code:
    function rand_uni($high){


    $rand_num_out="000" $num_to_convert ;    
    }else if(
    $rand_num_out="00" $num_to_convert ;    
    }else if(
    $rand_num_out="0" $num_to_convert ;    


    //global $rand_num_out;

    //which is called in //

    function obj(){
    $obj_height "100";
    $obj_width "150";

    $obj_directory "_img/_objects/";
    if (
    glob("$obj_directory*.gif") != false)
    $obj_filecount count(glob("$obj_directory*.gif")); 

    //global $rand_num_out;

                               //How I am Calling it now, wish I could just call the variable//
    echo"<img src=\"" $obj_directory;

    "no objects found :(";}

    Last edited by Savour; 12-03-2010 at 09:47 PM. Reason: clarification

  2. #2
    Join Date
    Aug 2004
    Generally, you want to return the value of interest from the function.
    PHP Code:
    // a stupid example function
    function foo($value)
    $value 2;

    foo(3); // outputs "6" 
    "Please give us a simple answer, so that we don't have to think, because if we think, we might find answers that don't fit the way we want the world to be."
    ~ Terry Pratchett in Nation

    How to Ask Questions the Smart Way (not affiliated with this site, but well worth reading)

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