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Wildhoney · 10-25-2007, 06:22 PM

This function will count up until it finds an empty slot. Good if you want to keep your images in order, else just generate a random file name.

Basically:

Input image: myLogo.jpg
If myLogo.jpg exists change to myLogo.2.jpg
If myLogo.2.jpg doesn't exist, return myLogo.2.jpg

PHP Code:


			
define('DIRECTORY', './images/');

function getImageName($szImage)
{
    $iIndex = 2;
    
    if(!file_exists(DIRECTORY . $szImage))
    {
        return $szImage;
    }
    
    $aParts = explode('.', $szImage);
    
    if(count($aParts) <= 1)
    {
        return $szImage;
    }
    
    $szExt = end($aParts);
    $iCount = count($aParts);
    
    $aParts[$iCount - 1] = $iIndex;
    $aParts[$iCount] = $szExt;
    
    do { $aParts[count($aParts) - 2] = $iIndex++; }
    while(file_exists(DIRECTORY . implode('.', $aParts)));
    
    return implode('.', $aParts);
}

10-25-2007, 06:22 PM	#2 (permalink)
Wildhoney La Vida es Sueño Join Date: Sep 2007 Location: Oldham Posts: 2,280 Thanks: 90	This function will count up until it finds an empty slot. Good if you want to keep your images in order, else just generate a random file name. Basically: Input image: myLogo.jpg If myLogo.jpg exists change to myLogo.2.jpg If myLogo.2.jpg doesn't exist, return myLogo.2.jpg PHP Code: define('DIRECTORY', './images/'); function getImageName($szImage) { $iIndex = 2; if(!file_exists(DIRECTORY . $szImage)) { return $szImage; } $aParts = explode('.', $szImage); if(count($aParts) <= 1) { return $szImage; } $szExt = end($aParts); $iCount = count($aParts); $aParts[$iCount - 1] = $iIndex; $aParts[$iCount] = $szExt; do { $aParts[count($aParts) - 2] = $iIndex++; } while(file_exists(DIRECTORY . implode('.', $aParts))); return implode('.', $aParts); } __________________ The man who comes back through the Door in the Wall will never be quite the same as the man who went out.