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dba_popen (PHP 3 >= 3.0.8, PHP 4, PHP 5) dba_popen -- Open database persistently 说明resource dba_popen ( string path, string mode [, string handler [, mixed ...]] )
dba_popen() establishes a persistent database instance
for path with mode using
handler.
参数
- path
Commonly a regular path in your filesystem.
- mode
It is r for read access, w for
read/write access to an already existing database, c
for read/write access and database creation if it doesn't currently exist,
and n for create, truncate and read/write access.
- handler
The name of the handler which
shall be used for accessing path. It is passed
all optional parameters given to dba_popen() and
can act on behalf of them.
返回值
Returns a positive handle on success, or FALSE on failure.
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dba_optimize