Remove error supression for file_exists()

In an older version of PHP a file_exists() call would issue a warning
when the file did not exist. This was fixed in later PHP releases. Since
we require PHP 5.3 now, there's no need to supress any error here
anymore. This might even give a minor performance boost.

1 files changed, 12 insertions, 12 deletions

diff --git a/inc/common.php b/inc/common.php
index 2c9359a0c..9b330000b 100644
--- a/inc/common.php
+++ b/inc/common.php
@@ -188,7 +188,7 @@ function pageinfo() {
 
     $info['locked']     = checklock($ID);
     $info['filepath']   = fullpath(wikiFN($ID));
-    $info['exists']     = @file_exists($info['filepath']);
+    $info['exists']     = file_exists($info['filepath']);
     $info['currentrev'] = @filemtime($info['filepath']);
     if($REV) {
         //check if current revision was meant
@@ -202,7 +202,7 @@ function pageinfo() {
         } else {
             //really use old revision
             $info['filepath'] = fullpath(wikiFN($ID, $REV));
-            $info['exists']   = @file_exists($info['filepath']);
+            $info['exists']   = file_exists($info['filepath']);
         }
     }
     $info['rev'] = $REV;
@@ -256,7 +256,7 @@ function pageinfo() {
 
     // draft
     $draft = getCacheName($info['client'].$ID, '.draft');
-    if(@file_exists($draft)) {
+    if(file_exists($draft)) {
         if(@filemtime($draft) < @filemtime(wikiFN($ID))) {
             // remove stale draft
             @unlink($draft);
@@ -352,7 +352,7 @@ function breadcrumbs() {
     $crumbs = isset($_SESSION[DOKU_COOKIE]['bc']) ? $_SESSION[DOKU_COOKIE]['bc'] : array();
     //we only save on show and existing wiki documents
     $file = wikiFN($ID);
-    if($ACT != 'show' || !@file_exists($file)) {
+    if($ACT != 'show' || !file_exists($file)) {
         $_SESSION[DOKU_COOKIE]['bc'] = $crumbs;
         return $crumbs;
     }
@@ -853,7 +853,7 @@ function checklock($id) {
     $lock = wikiLockFN($id);
 
     //no lockfile
-    if(!@file_exists($lock)) return false;
+    if(!file_exists($lock)) return false;
 
     //lockfile expired
     if((time() - filemtime($lock)) > $conf['locktime']) {
@@ -907,7 +907,7 @@ function unlock($id) {
     global $INPUT;
 
     $lock = wikiLockFN($id);
-    if(@file_exists($lock)) {
+    if(file_exists($lock)) {
         @list($ip, $session) = explode("\n", io_readFile($lock));
         if($ip == $INPUT->server->str('REMOTE_USER') || $ip == clientIP() || $session == session_id()) {
             @unlink($lock);
@@ -1010,13 +1010,13 @@ function pageTemplate($id) {
             // if the before event did not set a template file, try to find one
             if(empty($data['tplfile'])) {
                 $path = dirname(wikiFN($id));
-                if(@file_exists($path.'/_template.txt')) {
+                if(file_exists($path.'/_template.txt')) {
                     $data['tplfile'] = $path.'/_template.txt';
                 } else {
                     // search upper namespaces for templates
                     $len = strlen(rtrim($conf['datadir'], '/'));
                     while(strlen($path) >= $len) {
-                        if(@file_exists($path.'/__template.txt')) {
+                        if(file_exists($path.'/__template.txt')) {
                             $data['tplfile'] = $path.'/__template.txt';
                             break;
                         }
@@ -1197,13 +1197,13 @@ function saveWikiText($id, $text, $summary, $minor = false) {
     $file        = wikiFN($id);
     $old         = @filemtime($file); // from page
     $wasRemoved  = (trim($text) == ''); // check for empty or whitespace only
-    $wasCreated  = !@file_exists($file);
+    $wasCreated  = !file_exists($file);
     $wasReverted = ($REV == true);
     $pagelog     = new PageChangeLog($id, 1024);
     $newRev      = false;
     $oldRev      = $pagelog->getRevisions(-1, 1); // from changelog
     $oldRev      = (int) (empty($oldRev) ? 0 : $oldRev[0]);
-    if(!@file_exists(wikiFN($id, $old)) && @file_exists($file) && $old >= $oldRev) {
+    if(!file_exists(wikiFN($id, $old)) && file_exists($file) && $old >= $oldRev) {
         // add old revision to the attic if missing
         saveOldRevision($id);
         // add a changelog entry if this edit came from outside dokuwiki
@@ -1285,7 +1285,7 @@ function saveWikiText($id, $text, $summary, $minor = false) {
  */
 function saveOldRevision($id) {
     $oldf = wikiFN($id);
-    if(!@file_exists($oldf)) return '';
+    if(!file_exists($oldf)) return '';
     $date = filemtime($oldf);
     $newf = wikiFN($id, $date);
     io_writeWikiPage($newf, rawWiki($id), $id, $date);
@@ -1743,7 +1743,7 @@ function license_img($type) {
         $try[] = 'lib/images/license/'.$type.'/cc.png';
     }
     foreach($try as $src) {
-        if(@file_exists(DOKU_INC.$src)) return $src;
+        if(file_exists(DOKU_INC.$src)) return $src;
     }
     return '';
 }