# sqlsrv_errors

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sqlsrv_errors — Returns error and warning information about the last SQLSRV operation performed

### 说明

sqlsrv_errors ([ int `$errorsOrWarnings` ] ) : mixed

Returns error and warning information about the last SQLSRV operation performed.

### 参数

`errorsOrWarnings`

  Determines whether error information, warning information, or both are returned. If this parameter is not supplied, both error information and warning information are returned. The following are the supported values for this parameter: SQLSRV_ERR_ALL, SQLSRV_ERR_ERRORS, SQLSRV_ERR_WARNINGS.

### 返回值

If errors and/or warnings occurred on the last sqlsrv operation, an array of arrays containing error information is returned. If no errors and/or warnings occurred on the last sqlsrv operation, `NULL` is returned. The following table describes the structure of the returned arrays:

Array returned by sqlsrv_errors
Key | Description
--- | ---
SQLSTATE | For errors that originate from the ODBC driver, the SQLSTATE returned by ODBC. For errors that originate from the Microsoft Drivers for PHP for SQL Server, a SQLSTATE of IMSSP. For warnings that originate from the Microsoft Drivers for PHP for SQL Server, a SQLSTATE of 01SSP.
code | For errors that originate from SQL Server, the native SQL Server error code. For errors that originate from the ODBC driver, the error code returned by ODBC. For errors that originate from the Microsoft Drivers for PHP for SQL Server, the Microsoft Drivers for PHP for SQL Server error code.
message | A description of the error.

### 范例

Example #1 functionname() example

    <?php
    $serverName = "serverName/sqlexpress";
    $connectionInfo = array( "Database"=>"dbName", "UID"=>"username", "PWD"=>"password");
    $conn = sqlsrv_connect( $serverName, $connectionInfo);
    if( $conn === false ) {
         die( print_r( sqlsrv_errors(), true));
    }

    /* Set up a query to select an invalid column name. */
    $sql = "SELECT BadColumnName FROM Table_1";

    /* Execution of the query will fail because of the bad column name. */
    $stmt = sqlsrv_query( $conn, $sql );
    if( $stmt === false ) {
        if( ($errors = sqlsrv_errors() ) != null) {
            foreach( $errors as $error ) {
                echo "SQLSTATE: ".$error[ 'SQLSTATE']."<br />";
                echo "code: ".$error[ 'code']."<br />";
                echo "message: ".$error[ 'message']."<br />";
            }
        }
    }
    ?>

### 注释

By default, warnings generated on a call to any SQLSRV function are treated as errors. This means that if a warning occurs on a call to a SQLSRV function, the function returns `FALSE`. However, warnings that correspond to SQLSTATE values 01000, 01001, 01003, and 01S02 are never treated as errors. For information about changing this behavior, see sqlsrv_configure() and the WarningsReturnAsErrors setting.

### 参见

- sqlsrv_configure() - Changes the driver error handling and logging configurations