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Bug #77067 Inserting a BLOB from a stream transforms it to a string
Submitted: 2018-10-26 14:14 UTC Modified: -
From: php at bohwaz dot net Assigned:
Status: Open Package: PDO SQLite
PHP Version: 7.3.0RC4 OS: All
Private report: No CVE-ID: None
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 [2018-10-26 14:14 UTC] php at bohwaz dot net
If passing a stream as a parameter of PDOStatement::bindParam it is transformed to a string which contains the stream contents.

For example this prevents reusing the stream handle to close it properly or to truncate or change the file contents.

Test script:

$pdo = new PDO('sqlite::memory:');
$pdo->exec('CREATE TABLE test (a INTEGER, b BLOB);');

$fp = tmpfile();
fwrite($fp, 'Random stuff!');
fseek($fp, 0);

$stmt = $pdo->prepare('INSERT INTO test VALUES (?, ?);');
$stmt->bindValue(1, 42);
$stmt->bindParam(2, $fp, PDO::PARAM_LOB);



Expected result:

Actual result:


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 [2018-12-05 10:57 UTC] sjon at hortensius dot net
FWIW this isn't necessarily 7.3 specific - it has been like this ever since php 7.0, see
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Last updated: Mon Sep 16 14:01:28 2019 UTC