rename_imagefile_for_welcart.php

<?php
function renameForWelcartImage ( $path ) {
    if (is_dir($path) === false) {
        echo 'not directory path';
        exit();
    }
    $file = scandir($path);
    $count = 0;    
    foreach($file as $key){
        if ('.' == $key || '..' == $key) { continue; }

        $result = $path.'/'.$key;
        if (is_dir($result)) {
        	$count = 0;
            renameForWelcartImage($result);
        } elseif (is_file($result)) {
        	$path_info = pathinfo($result);
        	$d_tree = explode('/',$path_info['dirname']);
        	$fileName = $d_tree[count($d_tree) -1];
        	$count++;
        	$rename_fileName = '';
        	if($count == 1) {
        		$rename_fileName = $path_info['dirname'].'/'.$fileName.".".$path_info['extension'];
        	} else {
        		 $suffix = str_pad($count-1, 3, "0", STR_PAD_LEFT);
        		 $rename_fileName =  $path_info['dirname'].'/'.$fileName."-".$suffix.".".$path_info['extension'];
        	}
        	rename($result,$rename_fileName);
        }
    }
}