mysql_field_seek

    (PHP 4, PHP 5)

    mysql_field_seek — Set result pointer to a specified field offset

    Warning

    This extension was deprecated in PHP 5.5.0, and it was removed in PHP 7.0.0. Instead, the MySQLi or PDO_MySQL extension should be used. See also MySQL: choosing an API guide. Alternatives to this function include:

    Description

    mysql_field_seek(resource $result, int $field_offset): bool

    Seeks to the specified field offset. If the next call to mysql_fetch_field() doesn't include a field offset, the field offset specified in mysql_field_seek() will be returned.

    Parameters

    result

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

    field_offset

    The numerical field offset. The field_offset starts at 0. If field_offset does not exist, an error of level E_WARNING is also issued.

    Return Values

    Returns true on success or false on failure.

    See Also

    Improve This Page

    Learn How To Improve This Page • Submit a Pull Request • Report a Bug
    ＋add a note

    User Contributed Notes 4 notes

    up
    1
    adrien dot gibrat at gmail dot com
    16 years ago
    Not dumb at all!!

    It means that "mysql_field_seek" and "mysql_data_seek" are moving the same cursor... through the rows and columns of the result resource.

    Also means that the cursor goes to a new row when it reach a final field(aka column), by exemple while looping with "mysql_fetch_field".

    Calling "mysql_fetch_object", "mysql_fetch_array", "mysql_fetch_assoc"
    and "mysql_fetch_row" seems to place the cursor at the end of the line.

    So calling "mysql_fetch_field" without a field index, just after that, will return false.
    up
    -1
    chris at igwsolutions dot com
    16 years ago
    I spent a good deal of time trying to get the example to work, but the example does not work.
    To do what the exaple is trying to do, you would need to use mysql_data_seek

    assume we have table named testing which contains
    id name
    1 Hassan
    2 Jack
    3 Rose
    ---------------

    Here is an expample that will do the above example.

    Since I am more comfortable in a OOP setting, I used mysql_fetch_object

    <?php
    require("myConnenctionFile.php");

    $sql="SELECT * from testing";
    $result=mysql_query($sql);

    $row = mysql_fetch_object($result);
    echo     $row->id . ' ' . $row->name; // Output is (1 Hassan)
    mysql_data_seek($result,2);
    $row = mysql_fetch_object($result);
    echo     $row->id . ' ' . $row->name; // Output is (3 Rose)
    echo "<BR><BR>";
    ?>
    up
    -1
    poulpillusion at free dot fr
    17 years ago
    A dumb comment... but it may save people some time :
    mysql_field_seek != mysql_data_seek

    In order to fetch again the results of a resource result from the beginning, you will use mysql_data_seek(id, 0)
    up
    -4
    Hassan Kazem
    16 years ago
    an example of this function
    assume we have table1 which contains
    ID Name
    1 Hassan
    2 Jack
    3 Rose
    ---------------
    <?php
    mysql_connect    ("sql.server.com", "username", "password") or die(mysql_error());
    mysql_select_db("database") or die(mysql_error());
    $sql="SELECT * from table1";
    $result=mysql_query($sql);
    $row = mysql_fetch_array($result);
    echo     $row['ID'] . ' ' . $row['Name']; // Output is (1 Hassan)
    mysql_field_seek($result,2);
    echo     $row['ID'] . ' ' . $row['Name']; // Output is (3 Rose)
    ?>
    ---------------
    // You can see that the seek command forwarded the pointer one step and skipped row number 2
    ＋add a note
    To Top