ibase_blob_open()

(PHP 5, PHP 7)

Open blob for retrieving data parts

说明

ibase_blob_open(resource $link_identifier,string $blob_id): resource

ibase_blob_open(string $blob_id): resource

Opens an existing BLOB for reading.

参数

$link_identifier

An InterBase link identifier. If omitted, the last opened link is assumed.

$blob_id

A BLOB id.

返回值

Returns a BLOB handle for later use with ibase_blob_get()或者在失败时返回FALSE.

参见

• ibase_blob_close()Close blob
• ibase_blob_echo()Output blob contents to browser
• ibase_blob_get()Get len bytes data from open blob

While it is true that PHP4 allows only one parameter, it is not true that PHP5 allows only 2 parameters. The correct function signature for PHP5 should be:
resource ibase_blob_open([ resource link_identifier, ] string blob_id)
If a link_identifier is not provided, then the "default" link_identifier will be used. The default link identifier is assigned every time you call ibase_connect or ibase_pconnect, so if you have multiple connections it will be whichever was connected LAST.