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

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

# mysqli_result::$lengths

# mysqli_fetch_lengths

(PHP 5, PHP 7, PHP 8)

mysqli_result::$lengths -- mysqli_fetch_lengths — Returns the lengths of the columns of the current row in the result set

### Description

Object-oriented style

?array $mysqli_result->lengths;

Procedural style

mysqli_fetch_lengths(mysqli_result `$result`): array|false

The mysqli_fetch_lengths() function returns an array containing the lengths of every column of the current row within the result set.

### Parameters

`result`

  Procedural style only: A mysqli_result object returned by mysqli_query(), mysqli_store_result(), mysqli_use_result() or mysqli_stmt_get_result().

### Return Values

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

mysqli_fetch_lengths() is valid only for the current row of the result set. It returns `false` if you call it before calling mysqli_fetch_row/array/object or after retrieving all rows in the result.

### Examples

Example #1 Object-oriented style

    <?php$mysqli = new mysqli("localhost", "my_user", "my_password", "world");/* check connection */if (mysqli_connect_errno()) {    printf("Connect failed: %s\n", mysqli_connect_error());    exit();}$query = "SELECT * from Country ORDER BY Code LIMIT 1";if ($result = $mysqli->query($query)) {    $row = $result->fetch_row();    /* display column lengths */    foreach ($result->lengths as $i => $val) {        printf("Field %2d has Length %2d\n", $i+1, $val);    }    $result->close();}/* close connection */$mysqli->close();?>

Example #2 Procedural style

    <?php$link = mysqli_connect("localhost", "my_user", "my_password", "world");/* check connection */if (mysqli_connect_errno()) {    printf("Connect failed: %s\n", mysqli_connect_error());    exit();}$query = "SELECT * from Country ORDER BY Code LIMIT 1";if ($result = mysqli_query($link, $query)) {    $row = mysqli_fetch_row($result);    /* display column lengths */    foreach (mysqli_fetch_lengths($result) as $i => $val) {        printf("Field %2d has Length %2d\n", $i+1, $val);    }    mysqli_free_result($result);}/* close connection */mysqli_close($link);?>

The above examples will output:

    Field  1 has Length  3
    Field  2 has Length  5
    Field  3 has Length 13
    Field  4 has Length  9
    Field  5 has Length  6
    Field  6 has Length  1
    Field  7 has Length  6
    Field  8 has Length  4
    Field  9 has Length  6
    Field 10 has Length  6
    Field 11 has Length  5
    Field 12 has Length 44
    Field 13 has Length  7
    Field 14 has Length  3
    Field 15 has Length  2