PDOERRMODEWARNING
PDOERRMODEWARNING refers to the PDO error handling mode in PHP where database errors trigger PHP warnings rather than throwing exceptions or remaining silent. It corresponds to the PDO::ERRMODE_WARNING constant used with the ATTR_ERRMODE attribute. When this mode is active, a database error will generate an E_WARNING in PHP, and the statement may still fail or return false. Detailed error information can be retrieved afterward from methods such as PDO::errorInfo() or the statement’s errorInfo().
Setting this mode is typically done after creating the PDO object, for example: $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_WARNING); It
This mode is useful for debugging or for maintaining compatibility with older code that expects warnings. However,
In contrast, PDO also supports ERRMODE_SILENT, which remains silent on errors and requires manual checks for