Adjust use of is_a().

git-svn-id: http://svn.php.net/repository/pear/packages/DB/trunk@315557 c90b9560-bf6c-de11-be94-00142212c4b1
pear · Aug 26, 2011 · cf230db · cf230db
1 parent 97461e8
commit cf230db
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Showing 3 changed files with 3 additions and 3 deletions.
diff --git a/DB.php b/DB.php
@@ -591,7 +591,7 @@ function apiVersion()
      */
     function isError($value)
     {
-        return is_a($value, 'DB_Error');
+        return is_object($value) && is_a($value, 'DB_Error');		
     }
 
     // }}}

diff --git a/DB/common.php b/DB/common.php
@@ -1249,7 +1249,7 @@ function &limitQuery($query, $from, $count, $params = array())
             return $query;
         }
         $result = $this->query($query, $params);
-        if (is_a($result, 'DB_result')) {
+        if (is_object($result) && is_a($result, 'DB_result')) {
             $result->setOption('limit_from', $from);
             $result->setOption('limit_count', $count);
         }

diff --git a/DB/mysqli.php b/DB/mysqli.php
@@ -993,7 +993,7 @@ function tableInfo($result, $mode = null)
             $got_string = false;
         }
 
-        if (!is_a($id, 'mysqli_result')) {
+        if (!is_object($id) || !is_a($id, 'mysqli_result')) {
             return $this->mysqliRaiseError(DB_ERROR_NEED_MORE_DATA);
         }