Doc #62798 [NEW]: Parameter change in MySQL not reflected in MySQLi

From: Danack at basereality dot com Operating system: All PHP version: Irrelevant Package: MySQLi related Bug Type: Documentation Problem Bug description:Parameter change in MySQL not reflected in MySQLi Description: ------------ --- From manual page: http://www.php.net/mysqli-stmt.attr-set#refsect1-mysqli- stmt.attr-set-parameters --- The current documentation says that "MYSQLI_STMT_ATTR_UPDATE_MAX_LENGTH - If set to 1, causes mysqli_stmt_store_result() to update the metadata MYSQL_FIELD- >max_length value." This is a mis-feature caused by the MySQL documentation being incorrect. The field was described as a boolean but was actually being used as a long. This has been fixed in MySQL. http://bugs.mysql.com/bug.php?id=16144 It also appears to be fixed in MySQLi (lots of code surrounded by MYSQL_VERSION_ID >= 50107) however: 1) The documentation has not been updated. 2) Setting any value other than 1 appears to have no effect. I've raised this as a documentation problem as from my reading of the MySQLi code I think the parameter MYSQLI_STMT_ATTR_UPDATE_MAX_LENGTH should be setting the maximum field length returned by MySQLi, however that functionality also appears not to be working, so will retest once the documentation reflects the current code. Test script: --------------- Details of how to reproduce are here: http://stackoverflow.com/questions/11913818/php-massive-memory-usage-for-sql-query I can provide a standalone script if required, but as this is a documentation problem first, I haven't yet. -- Edit bug report at https://bugs.php.net/bug.php?id=62798&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=62798&r=trysnapshot54 Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=62798&r=trysnapshot53 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=62798&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=62798&r=fixed Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=62798&r=needdocs Fixed in release: https://bugs.php.net/fix.php?id=62798&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=62798&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=62798&r=needscript Try newer version: https://bugs.php.net/fix.php?id=62798&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=62798&r=support Expected behavior: https://bugs.php.net/fix.php?id=62798&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=62798&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=62798&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=62798&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=62798&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=62798&r=dst IIS Stability: https://bugs.php.net/fix.php?id=62798&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=62798&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=62798&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=62798&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=62798&r=mysqlcfg