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, 6 insertions, 6 deletions

diff --git a/inc/io.php b/inc/io.php
index bfa394a17..3ed227162 100644
--- a/inc/io.php
+++ b/inc/io.php
@@ -105,7 +105,7 @@ function _io_readWikiPage_action($data) {
  */
 function io_readFile($file,$clean=true){
     $ret = '';
-    if(@file_exists($file)){
+    if(file_exists($file)){
         if(substr($file,-3) == '.gz'){
             $ret = join('',gzfile($file));
         }else if(substr($file,-4) == '.bz2'){
@@ -204,7 +204,7 @@ function io_saveFile($file,$content,$append=false){
     global $conf;
     $mode = ($append) ? 'ab' : 'wb';
 
-    $fileexists = @file_exists($file);
+    $fileexists = file_exists($file);
     io_makeFileDir($file);
     io_lock($file);
     if(substr($file,-3) == '.gz'){
@@ -258,7 +258,7 @@ function io_saveFile($file,$content,$append=false){
  * @return bool true on success
  */
 function io_deleteFromFile($file,$badline,$regex=false){
-    if (!@file_exists($file)) return true;
+    if (!file_exists($file)) return true;
 
     io_lock($file);
 
@@ -385,7 +385,7 @@ function io_createNamespace($id, $ns_type='pages') {
     $ns_stack = explode(':', $id);
     $ns = $id;
     $tmp = dirname( $file = call_user_func($types[$ns_type], $ns) );
-    while (!@is_dir($tmp) && !(@file_exists($tmp) && !is_dir($tmp))) {
+    while (!@is_dir($tmp) && !(file_exists($tmp) && !is_dir($tmp))) {
         array_pop($ns_stack);
         $ns = implode(':', $ns_stack);
         if (strlen($ns)==0) { break; }
@@ -429,7 +429,7 @@ function io_makeFileDir($file){
 function io_mkdir_p($target){
     global $conf;
     if (@is_dir($target)||empty($target)) return 1; // best case check first
-    if (@file_exists($target) && !is_dir($target)) return 0;
+    if (file_exists($target) && !is_dir($target)) return 0;
     //recursion
     if (io_mkdir_p(substr($target,0,strrpos($target,'/')))){
         if($conf['safemodehack']){
@@ -606,7 +606,7 @@ function io_download($url,$file,$useAttachment=false,$defaultName='',$maxSize=20
         $file = $file.$name;
     }
 
-    $fileexists = @file_exists($file);
+    $fileexists = file_exists($file);
     $fp = @fopen($file,"w");
     if(!$fp) return false;
     fwrite($fp,$data);