Bug #35003 [Com]: Warning: PDOStatement::fetch(): column 0 data was too large for buffer and was

Edit report at https://bugs.php.net/bug.php?id=35003&edit=1 ID: 35003 Comment by: lucassouza1 at gmail dot com Reported by: derick@php.net Summary: Warning: PDOStatement::fetch(): column 0 data was too large for buffer and was Status: Closed Type: Bug Package: PDO related Operating System: Linux - Fedora Core 1 PHP Version: 5.1.0RC3 Assigned To: wez Block user comment: N Private report: N New Comment: This issue still happens. I suppose it occurs because for example, an oracle varchar(10) column, is filled with a multibyte char sequence like "maçã", it will overflow the buffer if a charset like 'AL32UTF8' is provided in DSN Previous Comments: ------------------------------------------------------------------------ [2011-11-04 15:53:21] tomasz at trejderowski dot pl Sorry, not true. As reported in many similar bug reports (in year 2005 and 2007) and comments to them (in year 2007, 2010 and 2011) this issue is STILL NOT FIXED. Up until end of 2011. At least not for PHP + PDO + Oracle. ------------------------------------------------------------------------ [2005-10-28 17:02:53] tony2001@php.net This bug has been fixed in CVS. Snapshots of the sources are packaged every three hours; this change will be in the next snapshot. You can grab the snapshot at http://snaps.php.net/. Thank you for the report, and for helping us make PHP better. ------------------------------------------------------------------------ [2005-10-27 18:59:24] vs at ez dot no Note that the query result is wrong. There actually should have been 0 instead of "". This is probably caused by the same problem. ------------------------------------------------------------------------ [2005-10-27 18:22:56] derick@php.net Description: ------------ Strange warning when fetching data from an Oracle DB with PDO: "column N data was too large for buffer and was truncated to fit it" Reproduce code: --------------- Environment: ============ PHP version: 5.1.0RC3 Server version: Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production Client libraries: oracle-instantclient 10.1.0.4 OS: Fedora Core 1 How to reproduce: ================= 1. Execute the following query on your Oracle database: CREATE TABLE pdotest (some_num INTEGER DEFAULT 0 NOT NULL); 2. Run the following script: =============================================================================== <? $query="SELECT data_default FROM user_tab_columns WHERE table_name='PDOTEST'"; $db = new PDO('oci:dbname=orcl', 'trunk', 'tiger'); $sth = $db->query( $query ); for( $i=0; ( $row = $sth->fetch( PDO::FETCH_ASSOC ) ); $i++ ) var_dump( $row ); echo "$i rows fetched.\n"; ?> =============================================================================== Expected result: ---------------- No warnings. Actual result: -------------- Warning: PDOStatement::fetch(): column 0 data was too large for buffer and was truncated to fit it in /path/to/test.php on line 7 array(1) { ["DATA_DEFAULT"]=> string(0) "" } 1 rows fetched. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=35003&edit=1