# sqlsrv_get_field

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sqlsrv_get_field — Gets field data from the currently selected row

### 说明

sqlsrv_get_field ( resource `$stmt` , int `$fieldIndex` [, int `$getAsType` ] ) : mixed

Gets field data from the currently selected row. Fields must be accessed in order. Field indices start at 0.

### 参数

`stmt`

  A statement resource returned by sqlsrv_query() or sqlsrv_execute().

`fieldIndex`

  The index of the field to be retrieved. Field indices start at 0. Fields must be accessed in order. i.e. If you access field index 1, then field index 0 will not be available.

`getAsType`

  The PHP data type for the returned field data. If this parameter is not set, the field data will be returned as its default PHP data type. For information about default PHP data types, see » Default PHP Data Types in the Microsoft SQLSRV documentation.

### 返回值

Returns data from the specified field on success. Returns `FALSE` otherwise.

### 范例

Example #1 sqlsrv_get_field() example

The following example demonstrates how to retrieve a row with sqlsrv_fetch() and get the row fields with sqlsrv_get_field().

    <?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));
    }

    $sql = "SELECT Name, Comment
            FROM Table_1
            WHERE ReviewID=1";
    $stmt = sqlsrv_query( $conn, $sql);
    if( $stmt === false ) {
         die( print_r( sqlsrv_errors(), true));
    }

    // Make the first (and in this case, only) row of the result set available for reading.
    if( sqlsrv_fetch( $stmt ) === false) {
         die( print_r( sqlsrv_errors(), true));
    }

    // Get the row fields. Field indeces start at 0 and must be retrieved in order.
    // Retrieving row fields by name is not supported by sqlsrv_get_field.
    $name = sqlsrv_get_field( $stmt, 0);
    echo "$name: ";

    $comment = sqlsrv_get_field( $stmt, 1);
    echo $comment;
    ?>

### 参见

- sqlsrv_fetch() - Makes the next row in a result set available for reading
- sqlsrv_fetch_array() - Returns a row as an array
- sqlsrv_fetch_object() - Retrieves the next row of data in a result set as an object