ibase_blob_open

(PHP 5, PHP 7 < 7.4.0)

ibase_blob_open — Open blob for retrieving data parts

说明

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

ibase_blob_open(string $blob_id): resource|false

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

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Kevin Hamilton ¶

18 years ago

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.