Solve the error when try to remove a file previously removed, the ide…

…a is to remove first the imagekeys files and then, the remaining files of the temporary directory

tcpdf.php

@@ -7710,7 +7710,15 @@ public function _destroy($destroyall=false, $preserve_objcopy=false) {
 		}
 		if ($destroyall AND !$preserve_objcopy) {
 			self::$cleaned_ids[$this->file_id] = true;
-			// remove all temporary files
+			// first: remove all imagekeys files
+			if (isset($this->imagekeys)) {
+				foreach($this->imagekeys as $file) {
+					if (strpos($file, K_PATH_CACHE) === 0 && file_exists($file)) {
+						unlink($file);
+					}
+				}
+			}
+			// second: remove all remaining temporary files
 			if ($handle = @opendir(K_PATH_CACHE)) {
 				while (false !== ($file_name = readdir($handle))) {
 					if (strpos($file_name, '__tcpdf_'.$this->file_id.'_') === 0) {
@@ -7719,13 +7727,6 @@ public function _destroy($destroyall=false, $preserve_objcopy=false) {
 				}
 				closedir($handle);
 			}
-			if (isset($this->imagekeys)) {
-				foreach($this->imagekeys as $file) {
-					if (strpos($file, K_PATH_CACHE) === 0 && file_exists($file)) {
-						@unlink($file);
-					}
-				}
-			}
 		}
 		$preserve = array(
 			'file_id',