use empty() where array values might not be set

1 files changed, 4 insertions, 4 deletions

diff --git a/inc/media.php b/inc/media.php
index 4fff95d94..dc76521c6 100644
--- a/inc/media.php
+++ b/inc/media.php
@@ -1018,7 +1018,7 @@ function media_file_tags($meta) {
     foreach($fields as $key => $tag){
         $t = array();
         if (!empty($tag[0])) $t = array($tag[0]);
-        if(is_array($tag[3])) $t = array_merge($t,$tag[3]);
+        if(isset($tag[3]) && is_array($tag[3])) $t = array_merge($t,$tag[3]);
         $value = media_getTag($t, $meta);
         $tags[] = array('tag' => $tag, 'value' => $value);
     }
@@ -1779,7 +1779,7 @@ function media_nstree_item($item){
     global $INPUT;
     $pos   = strrpos($item['id'], ':');
     $label = substr($item['id'], $pos > 0 ? $pos + 1 : 0);
-    if(!$item['label']) $item['label'] = $label;
+    if(empty($item['label'])) $item['label'] = $label;
 
     $ret  = '';
     if (!($INPUT->str('do') == 'media'))
@@ -1841,7 +1841,7 @@ function media_resize_image($file, $ext, $w, $h=0){
     if( $mtime > filemtime($file) ||
             media_resize_imageIM($ext,$file,$info[0],$info[1],$local,$w,$h) ||
             media_resize_imageGD($ext,$file,$info[0],$info[1],$local,$w,$h) ){
-        if($conf['fperm']) @chmod($local, $conf['fperm']);
+        if(!empty($conf['fperm'])) @chmod($local, $conf['fperm']);
         return $local;
     }
     //still here? resizing failed
@@ -1902,7 +1902,7 @@ function media_crop_image($file, $ext, $w, $h=0){
     if( $mtime > @filemtime($file) ||
             media_crop_imageIM($ext,$file,$info[0],$info[1],$local,$cw,$ch,$cx,$cy) ||
             media_resize_imageGD($ext,$file,$cw,$ch,$local,$cw,$ch,$cx,$cy) ){
-        if($conf['fperm']) @chmod($local, $conf['fperm']);
+        if(!empty($conf['fperm'])) @chmod($local, $conf['fperm']);
         return media_resize_image($local,$ext, $w, $h);
     }