wording fix [skip ci]

iyedb · Oct 7, 2014 · 22dac1a · 22dac1a
1 parent 08d0a1a
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diff --git a/docs/guide/runtime-sessions-cookies.md b/docs/guide/runtime-sessions-cookies.md
@@ -174,7 +174,10 @@ where 'BLOB' refers to the BLOB-type of your preferred DBMS. Below are the BLOB
 - PostgreSQL: BYTEA
 - MSSQL: BLOB
 
-Note that length of id column should be adjusted if `session.hash_function` is changed in `php.ini`.
+> Note: According to the php.ini setting of `session.hash_function`, you may need to adjust
+  the length of the `id` column. For example, if `session.hash_function=sha256`, you should use
+  length 64 instead of 40.
+
 
 ### Flash Data <a name="flash-data"></a>
 

diff --git a/framework/web/DbSession.php b/framework/web/DbSession.php
@@ -66,7 +66,9 @@ class DbSession extends Session
      * When using DbSession in a production server, we recommend you create a DB index for the 'expire'
      * column in the session table to improve the performance.
      *
-     * Note that length of id column should be adjusted if `session.hash_function` is changed in `php.ini`.
+     * Note that according to the php.ini setting of `session.hash_function`, you may need to adjust
+     * the length of the `id` column. For example, if `session.hash_function=sha256`, you should use
+     * length 64 instead of 40.
      */
     public $sessionTable = '{{%session}}';