PDO::errorCode
PDO::errorCode retrieves the SQLSTATE of the most recent operation on the database handle.
Syntax
mixed PDO::errorCode();
Return Value
PDO::errorCode returns a five-char SQLSTATE as a string or NULL if there was no operation on the database handle.
Remarks
PDO::errorCode in the PDO_SQLSRV driver returns warnings on some successful operations. For example, on a successful connection, PDO::errorCode returns "01000" indicating SQL_SUCCESS_WITH_INFO.
PDO::errorCode only retrieves error codes for operations performed directly on the database connection. If you create a PDOStatement instance through PDO::prepare or PDO::query and an error is generated on the statement object, PDO::errorCode does not retrieve that error. You must call PDOStatement::errorCode to return the error code for an operation performed on a particular statement object.
Support for PDO was added in version 2.0 of the Microsoft Drivers for PHP for SQL Server.
Example
In this example, the name of the column is misspelled (Cityx instead of City), causing an error, which is then reported.
<?php
$conn = new PDO( "sqlsrv:server=(local) ; Database = AdventureWorks ", "", "");
$query = "SELECT * FROM Person.Address where Cityx = 'Essen'";
$conn->query($query);
print $conn->errorCode();
?>