OCI-Lob::load()

(PHP 5, PHP 7, PECL OCI8 >= 1.1.0)

Returns large object's contents

说明

OCI-Lob::load(void): string

Returns large object's contents. As script execution is terminated when the memory_limit is reached, ensure that the LOB does not exceed this limit. In most cases it's recommended to use OCI-Lob::read instead.

返回值

Returns the contents of the object, or FALSE on errors.

参见

• OCI-Lob::read

Ps. To prevent IE errors like 'File not found!' after downloading file from db I recommend to add next two lines into header:
header('Cache-Control: max-age=0');
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
With this, IE will open any file normally :)

I'll give you example how to download a file from db without storing it on server's FS:
It works like this - point yor browser to index.php?name=file.ext
Just make sure that file "file.ext" exists in your db!
Code:
<?php
 $dbConnection=ocilogon('user','pass','data.world'); //login stuff
 $sql_SelectBlob='select document_body,filename from tdocuments where id=1'; //selecting a blob field named 'document_body' with id = 1
 $statement=OCIParse($dbConnection,$sql_SelectBlob);
 OCIExecute($statement) or die($sql_SelectBlob.'<hr>');
if(OCIFetch($statement)) //if file exists
 {
 $a=OCIResult($statement,"DOCUMENT_BODY");
 }
header('Content-type: application/octet-stream;');
header('Content-disposition: attachment;filename='.$_GET['name']);
print $a->load();
//browser promts to save or open the file
?>
Have fun!