Don't use substr to get first char of string

2 files changed, 3 insertions, 3 deletions

diff --git a/lib/archive/tar.php b/lib/archive/tar.php
index 4ff78779834..944a0ac4ba4 100644
--- a/lib/archive/tar.php
+++ b/lib/archive/tar.php
@@ -150,7 +150,7 @@ class OC_Archive_TAR extends OC_Archive{
 		$folderContent=array();
 		$pathLength=strlen($path);
 		foreach($files as $file){
-			if(substr($file,0,1)=='/'){
+			if($file[0]=='/'){
 				$file=substr($file,1);
 			}
 			if(substr($file,0,$pathLength)==$path and $file!=$path){
@@ -241,7 +241,7 @@ class OC_Archive_TAR extends OC_Archive{
 				}
 			}
 		}
-		if(substr($path,0,1)!='/'){//not all programs agree on the use of a leading /
+		if($path[0]!='/'){//not all programs agree on the use of a leading /
 			return $this->fileExists('/'.$path);
 		}else{
 			return false;
diff --git a/lib/archive/zip.php b/lib/archive/zip.php
index 22ab48937eb..6631a649b16 100644
--- a/lib/archive/zip.php
+++ b/lib/archive/zip.php
@@ -191,7 +191,7 @@ class OC_Archive_ZIP extends OC_Archive{
 	}
 
 	private function stripPath($path){
-		if(substr($path,0,1)=='/'){
+		if(!$path || $path[0]=='/'){
 			return substr($path,1);
 		}else{
 			return $path;