From fdb75418c9c4b87e9d7f15f1b59fe8d55739c8f3 Mon Sep 17 00:00:00 2001 From: Andrey Andreev Date: Mon, 5 Mar 2012 16:32:17 +0200 Subject: Add a note to the num_rows() documentation --- user_guide_src/source/database/results.rst | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'user_guide_src/source/database/results.rst') diff --git a/user_guide_src/source/database/results.rst b/user_guide_src/source/database/results.rst index 4f93c794d..90d2efce3 100644 --- a/user_guide_src/source/database/results.rst +++ b/user_guide_src/source/database/results.rst @@ -150,6 +150,12 @@ is the variable that the query result object is assigned to:: echo $query->num_rows(); +..note:: + Not all database drivers have a native way of getting the total + number of rows for a result set. When this is the case, all of + the data is prefetched and count() is manually called on the + resulting array in order to achieve the same functionality. + $query->num_fields() ===================== @@ -182,5 +188,4 @@ Example:: $row = $query2->row(); echo $row->name; - $query2->free_result();// The $query2 result object will no longer be available - + $query2->free_result(); // The $query2 result object will no longer be available -- cgit v1.2.3-24-g4f1b