DB_Common::provides() -- checks for a feature
Description
Checks if a feature is available for the chosen database type.
Parameter
- string
$feature
the feature to check
Table 20-1. Possible values are:
| $feature value | Meaning |
|---|
| prepare |
The database does a pre-check of the SQL statment
|
| pconnect |
The database supports persistent connections
|
| transactions |
The database supports transactions
|
| limit |
The database supports LIMITed SELECT statments
|
Return value
boolean - if TRUE, the feature is supported
Note
This function can not be called
statically.
| Warning |
The provided information are only hints. Check the documention
of your database system for the real supported features.
I.e. MySQL supports transactions, but not for every table type.
|