maxdb_fetch_lengths

maxdb_result::lengths

Returns the lengths of the columns of the current row in the result set

&reftitle.description;

&style.procedural;

`array` `maxdb_fetch_lengths` `resource` `result`

&style.oop;

`array` `maxdb_result->lengths`

The `maxdb_fetch_lengths` function returns an array containing the lengths of every column of the current row within the result set represented by the `result` parameter. If successful, a numerically indexed array representing the lengths of each column is returned&return.falseforfailure;.

&reftitle.returnvalues;

An array of integers representing the size of each column (not including any terminating null characters). &false; if an error occurred.

`maxdb_fetch_lengths` is valid only for the current row of the result set. It returns &false; if you call it before calling maxdb_fetch_row/array/resource or after retrieving all rows in the result.

&reftitle.examples;

### &style.oop;

    <?php
    $maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");

    /* check connection */
    if (maxdb_connect_errno()) {
       printf("Connect failed: %s\n", maxdb_connect_error());
       exit();
    }

    $query = "SELECT * from hotel.customer WHERE cno = 3000";

    if ($result = $maxdb->query($query)) {

       $row = $result->fetch_row();

       /* display column lengths */
       foreach ($result->lengths as $i => $val) {
           printf("Field %2d has Length %2d\n", $i+1, $val);
       }
       $result->close();
    }

    /* close connection */
    $maxdb->close();
    ?>

### &style.procedural;

    <?php
    $link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");

    /* check connection */
    if (maxdb_connect_errno()) {
       printf("Connect failed: %s\n", maxdb_connect_error());
       exit();
    }

    $query = "SELECT * from hotel.customer WHERE cno = 3000";

    if ($result = maxdb_query($link, $query)) {

       $row = maxdb_fetch_row($result);

       /* display column lengths */
       foreach (maxdb_fetch_lengths($result) as $i => $val) {
           printf("Field %2d has Length %2d\n", $i+1, $val);
       }
       maxdb_free_result($result);
    }

    /* close connection */
    maxdb_close($link);
    ?>

&example.outputs.similar;

    Field  1 has Length  4
    Field  2 has Length  3
    Field  3 has Length  5
    Field  4 has Length  6
    Field  5 has Length  5
    Field  6 has Length 21