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--- v5:userguide:learn_fields:associative_key_case [2016/03/18 01:11] – created mnewnham
+++ v5:userguide:learn_fields:associative_key_case [2019/05/08 13:36] (current) – [Associative Key Case] dregad
@@ Line 1: / Line 1: @@
-<- v5:userguide:learn_fields:introduction|Fetch Mode ^ v5:userguide:learn_fields:start_lesson|Start Of Lesson ^ v5:userguide:learn_fields:field_objects|Field Objects ->
+<- v5:userguide:learn_fields:start_lesson|Fetch Mode ^ v5:userguide:learn_fields:start_lesson|Start Of Lesson ^ v5:userguide:learn_fields:field_objects|Field Objects ->
 ~~NOTOC~~
 ====== Associative Key Case ======
-If returning data in associative mode, it is important to choose early in the project whether to use upper case or lower case keys. Once that decision has been made, a consistent result can be expected. ADOdb controls the casing of the keys using a constant [[v5:reference:adodb_assoc_case|ADODB_ASSOC_CASE]].
+If returning data in associative mode, it is important to choose early in the project whether to use upper case or lower case keys. Once that decision has been made, a consistent result can be expected. ADOdb controls the casing of the keys using the ''[[v5:reference:adodb_assoc_case|ADODB_ASSOC_CASE]]'' constant.
 The constant must be defined //**before**// the inclusion of the ADOdb libraries
-There are 3 possible values:
+There are 3 possible values: ''ADODB_ASSOC_CASE_LOWER'', ''ADODB_ASSOC_CASE_UPPER'' and ''ADODB_ASSOC_CASE_NATIVE'' (Default). Note that use of native case is not recommended when writing portable applications.
-===== Constants =====
+See ''[[v5:reference:adodb_assoc_case|ADODB_ASSOC_CASE]]'' in the reference manual for further information and usage examples.
-^Name^Value^Description^
-|ADODB_ASSOC_CASE_LOWER|0|lowercase field names|
-|ADODB_ASSOC_CASE_UPPER|1|uppercase field names|
-|ADODB_ASSOC_CASE_NATIVE (Default)|2|use native-case field names|
-<code php>
-DEFINE(ADODB_ASSOC_CASE,0);
-require "adodb/adodb.inc.php";
-$ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;
-$sql = 'select * from some_table';
-print_r($db->getAll($sql));
-/*
-* Returns
-*
-array(0=>array('col0'=>'val0',
-               'col1'=>'val1',
-               'col2'=>'val2',
-               etc....
-               )
-*/
-</code>
-If we now set the value of ADODB_ASSOC_CASE to upper case, we obtain the following effect:
-<code php>
-DEFINE(ADODB_ASSOC_CASE,1);
-require "adodb/adodb.inc.php";
-$ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;
-$sql = 'select * from some_table';
-print_r($db->getAll($sql));
-/*
-* Returns
-*
-array(0=>array('COL0'=>'val0',
-               'COL1'=>'val1',
-               'COL2'=>'val2',
-               etc....
-               )
-*/
-</code>
-  * Note that setting the value of this variable has no effect on the casing of the values of the array
-  * Use of **//ADODB_CASE_NATIVE//** is not recommended when writing portable applications, as there is no consistent casing across databases. Some DBMS may returned mixed-case keys.
-  *