dba_fetch
(PHP 4, PHP 5, PHP 7)
dba_fetch — Fetch data specified by key
说明
dba_fetch (
string
$key ,
resource $handle ) :
string
dba_fetch (
string
$key ,
int $skip ,
resource $handle ) :
string
dba_fetch() fetches the data specified by key from the database specified with handle.
参数
-
key -
The key the data is specified by.
Note:
When working with inifiles this function accepts arrays as keys where index 0 is the group and index 1 is the value name. See: dba_key_split().
-
skip -
The number of key-value pairs to ignore when using cdb databases. This value is ignored for all other databases which do not support multiple keys with the same name.
-
handle -
The database handler, returned by dba_open() or dba_popen().
返回值
Returns the associated string if the key/data pair is found, FALSE otherwise.
更新日志
| 版本 | 说明 |
|---|---|
| 4.3.0 | The skip parameter is available to support cdb's capability of multiple keys having the same name. |
参见
- dba_exists() - Check whether key exists
- dba_delete() - Delete DBA entry specified by key
- dba_insert() - Insert entry
- dba_replace() - Replace or insert entry
- dba_key_split() - Splits a key in string representation into array representation
