# 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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