# mssql_field_seek

(PHP 4, PHP 5, PECL odbtp >= 1.1.1)

mssql_field_seek — Seeks to the specified field offset

Warning

This function was REMOVED in PHP 7.0.0.

### 说明

mssql_field_seek ( resource `$result` , int `$field_offset` ) : bool

Seeks to the specified field offset. If the next call to mssql_fetch_field() won't include a field offset, this field would be returned.

### 参数

`result`

  The result resource that is being evaluated. This result comes from a call to mssql_query().

`field_offset`

  The field offset, starts at 0.

### 返回值

成功时返回 `TRUE`， 或者在失败时返回 `FALSE`。

### 范例

Example #1 Using mssql_field_seek() on the example for mssql_fetch_field()

    <?php
    // Connect to MSSQL and select the database
    mssql_connect('MANGO\SQLEXPRESS', 'sa', 'phpfi');
    mssql_select_db('php');

    // Send a select query to MSSQL
    $query = mssql_query('SELECT * FROM [php].[dbo].[persons]');

    // Construct table
    echo '<h3>Table structure for \'persons\'</h3>';
    echo '<table border="1">';

    // Table header
    echo '<thead>';
    echo '<tr>';
    echo '<td>Field name</td>';
    echo '<td>Data type</td>';
    echo '<td>Max length</td>';
    echo '</tr>';
    echo '</thead>';

    // Dump all fields
    echo '<tbody>';

    for ($i = 0; $i < mssql_num_fields($query); ++$i) {
        // Fetch the field information, notice the
        // field_offset parameter is not set. See
        // the mssql_field_seek call below
        $field = mssql_fetch_field($query);

        // Print the row
        echo '<tr>';
        echo '<td>' . $field->name . '</td>';
        echo '<td>' . strtoupper($field->type) . '</td>';
        echo '<td>' . $field->max_length . '</td>';
        echo '</tr>';

        // Move the internal seek pointer to the next
        // row in the result set
        mssql_field_seek($query, $i + 1);
    }

    echo '</tbody>';
    echo '</table>';

    // Free the query result
    mssql_free_result($query);
    ?>

### 参见

- mssql_fetch_field() - Get field information