Getting blind on an array

[DaPrince]

I'm getting blind on this one.

Please help me and tell me whats wrong??

<?
$screenshot_extensions = array('.gif','.jpg','.bmp','.png'); 
$ModName = "UpDownload";
$shots_temp_folder = "modules/$ModName/shots/temp";
$input_source = "$shots_temp_folder/14";

$RealName = Get_ImageExtension($input_source);

echo $RealName;

function Get_ImageExtension($input_source){

while($ext = current($screenshot_extensions))
        {
            if(file_exists("$input_source".$ext))
            {
              $input_source = $input_source.$ext;
            }
            next($screenshot_extensions);
        }
		return $input_source;

}
?>

I get this error:

Warning: current(): Passed variable is not an array or object in D:\wwwElevWeb\wwwroot\test\index2.php on line 13
modules/UpDownload/shots/temp/14

Line 13 is the WHILE.

[TheDefender]

Does everything function properly when it is not in a function? Like this:

<?php
$screenshot_extensions = array('.gif','.jpg','.bmp','.png');  

$ModName = "UpDownload"; 
$shots_temp_folder = "modules/$ModName/shots/temp"; 
$input_source = "$shots_temp_folder/14"; 

$RealName = Get_ImageExtension($input_source); 

echo $RealName; 

while($ext = current($screenshot_extensions)) 
        { 
            if(file_exists("$input_source".$ext)) 
            { 
              $input_source = $input_source.$ext; 
            } 
            next($screenshot_extensions); 
        } 

?>

[DaPrince]

with a few changes to get some output.

Now its working - almost, I was looking in the wrong folder :queasy:
But it still doesn't work when its a function?!?

<?
$screenshot_extensions = array('.gif','.jpg','.bmp','.png'); 
$ModName = "UpDownload";
$shots_temp_folder = "modules/$ModName/shots/temp";
$input_source = "$shots_temp_folder/14";

/*$RealName = Get_ImageExtension($input_source);

echo $RealName;

function Get_ImageExtension($input_source){
*/
while($ext = current($screenshot_extensions))
        {
		//$input_source = "$input_source"."$ext";			
            if(file_exists("$input_source"."$ext"))
            {
              $input_source = "$input_source"."$ext";
			  echo "The source is : $input_source<br>";
            }
			echo "nothing<br>";
            next($screenshot_extensions);

	}
/*		
		return $input_source;

}*/
?>

[TheDefender]

OK, so let's put it back into the function and move the array into the functin and see how that goes.

<? 
$ModName = "UpDownload"; 
$shots_temp_folder = "modules/$ModName/shots/temp"; 
$input_source = "$shots_temp_folder/14"; 

$RealName = Get_ImageExtension($input_source); 

echo $RealName; 

function Get_ImageExtension($input_source){ 

$screenshot_extensions = array('.gif','.jpg','.bmp','.png');  

while($ext = current($screenshot_extensions)) 
        { 
        //$input_source = "$input_source"."$ext";             

            if(file_exists("$input_source"."$ext")) 
            { 
              $input_source = "$input_source"."$ext"; 
              echo "The source is : $input_source<br>"; 
            } 
            echo "nothing<br>"; 
            next($screenshot_extensions); 

    } 

    return $input_source; 

}
?> 

[DaPrince]

YEAH - Now its working - also in my real code.

Thanks a lot - TheDefender. Your help is appreciated very much.!!

[bubblenut]

Alternatively you could declare the array in the top level scope and then bring it into the function scope with the use of the global keyword.

$variable="Hello World";
function funcName() {
  global $variable;
  echo($variable);
}
//prints Hello World
funName();

[TheDefender]

Thanks for the followup bubblenut. I was going to get to that after I made sure the array was functioning properly within the function, but you beat me to the punch 😉