dba_fetch Fetch data specified by key php函数


dba_fetch

(PHP 4, PHP 5)

dba_fetchFetch data specified by key

说明

string dba_fetch ( string $key , resource $handle ) string dba_fetch ( string $key , int $skip , resource $handle )

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



相关阅读:
dba_firstkey Fetch first key
dba_handlers List all the handlers available
dba_insert Insert entry
dba_key_split Splits a key in string representation into array representation
dba_list List all open database files
dba_nextkey Fetch next key
dba_open Open database
dba_optimize Optimize database
dba_popen Open database persistently
dba_replace Replace or insert entry
dba_sync Synchronize database
dcgettext Overrides the domain for a single lookup
dcngettext Plural version of dcgettext
deaggregate Removes the aggregated methods and properties from an object
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