php/yii2
1
0
Fork 0
mirror of https://github.com/yiisoft/yii2.git synced 2025-11-03 13:58:55 +08:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #6960 from alexbs/patch-1

Browse Source 
Update db-dao.md
This commit is contained in:
Alexander Makarov
2015-01-21 17:21:14 +03:00
parent bab2737f91 a77650ba76
commit d31345143a
1 changed files with 4 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
docs/guide/db-dao.md
View File

@ -190,8 +190,8 @@ executing it multiple times with different parameters. For example,
```php
$command = $db->createCommand('SELECT * FROM post WHERE id=:id');
$post1 = $command->bindValue(':id', 1)->queryRow();
$post2 = $command->bindValue(':id', 2)->queryRow();
$post1 = $command->bindValue(':id', 1)->queryOne();
$post2 = $command->bindValue(':id', 2)->queryOne();
```
Because [[yii\db\Command::bindParam()|bindParam()]] supports binding parameters by references, the above code
@ -202,10 +202,10 @@ $command = $db->createCommand('SELECT * FROM post WHERE id=:id')
->bindParam(':id', $id);
$id = 1;
$post1 = $command->queryRow();
$post1 = $command->queryOne();
$id = 2;
$post2 = $command->queryRow();
$post2 = $command->queryOne();
```
Notice that you bind the placeholder to the `$id` variable before the execution, and then change the value of that variable