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Database Abstraction Layer for PHP

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v5:userguide:learn_fields:field_objects [2016/03/20 16:49] – [MetaType Based Decisions] mnewnhamv5:userguide:learn_fields:field_objects [2021/03/09 09:38] (current) – [Interrogating The Columns] wrong variable name in code sample dregad
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 ~~NOTOC~~ ~~NOTOC~~
 ====== Fields As Objects ====== ====== Fields As Objects ======
-In Lesson 2, the concept of the **//ActualTypes//** was explained. In this section, we show how the value of field, and also the attributes of the same field can be obtained. By treating the returned result set as a 2 dimensional array, we can process each row on a column-by-column basis.+In Lesson 2, the concept of the **//ActualTypes//** was explained.  
 +In this section, we show how the value of field, as well as its attributescan be obtained.  
 +By treating the returned result set as a 2 dimensional array, we can process each row on a column-by-column basis.
  
 ===== The Limits Of The Array ===== ===== The Limits Of The Array =====
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 ===== Walking The Rows Of A ResultSet ===== ===== Walking The Rows Of A ResultSet =====
-In Lesson 1, we saw a number of ways of moving from one row to the next. It is important to not mix methods, as some methods read the record and automatically advance the record pointer, and some do not. However in all cases, a flag **EOF** is set as soon as the end of the result set is reached. In the following example, the method [[v5:reference:connection:movenext|moveNext()]] is used.+In Lesson 1, we saw a number of ways of moving from one row to the next. It is important to not mix methods, as some methods read the record and automatically advance the record pointer, and some do not. However in all cases, a flag **EOF** is set as soon as the end of the result set is reached. In the following example, the method [[v5:reference:recordset:movenext|moveNext()]] is used.
    
 Note the for both rows and columns, ADOdb uses the PHP convention of a Zero-Based (0) array, as opposed to SQL offsets, which are One-based (1). Note the for both rows and columns, ADOdb uses the PHP convention of a Zero-Based (0) array, as opposed to SQL offsets, which are One-based (1).
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          */           */ 
          $fieldInfo = $recordSet->fetchField($colIndex);          $fieldInfo = $recordSet->fetchField($colIndex);
-         $type      = $recordSet->metaType($fld->type);+         $type      = $recordSet->metaType($fieldInfo->type);
            
          /*          /*
          * This is the value of the field          * This is the value of the field
          */          */
-         $value     = $recordSet->fields[$colIndex];+         $value     = $recordSet->fields($colIndex);
                        
 </code> </code>
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      * End of the colums, move to next row      * End of the colums, move to next row
      */       */ 
-     $recordSet->MoveNext();+     $recordSet->moveNext();
  
 } }
v5/userguide/learn_fields/field_objects.1458488968.txt.gz · Last modified: 2017/04/21 11:40 (external edit)