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    mysqli_result::fetch_row

    mysqli_fetch_row

    (PHP 5, PHP 7, PHP 8)

    mysqli_result::fetch_row -- mysqli_fetch_row — Fetch the next row of a result set as an enumerated array

    说明

    面向对象风格

    public mysqli_result::fetch_row(): array|null|false

    过程化风格

    mysqli_fetch_row(mysqli_result $result): array|null|false

    Fetches one row of data from the result set and returns it as an enumerated array, where each column is stored in an array offset starting from 0 (zero). Each subsequent call to this function will return the next row within the result set, or null if there are no more rows.

    注意: 此函数将 NULL 字段设置为 PHP null 值。

    参数

    result

    仅以过程化样式：由 mysqli_query()、mysqli_store_result()、 mysqli_use_result()、mysqli_stmt_get_result() 返回的 mysqli_result 对象。

    返回值

    Returns an enumerated array representing the fetched row, null if there are no more rows in the result set, 或者在失败时返回 false.

    示例

    示例 #1 mysqli_result::fetch_row() example

    面向对象风格

    <?php

    mysqli_report    (MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
    $mysqli = new mysqli("localhost", "my_user", "my_password", "world");

    $query = "SELECT Name, CountryCode FROM City ORDER BY ID DESC";

    $result = $mysqli->query($query);

    /* fetch object array */
    while ($row = $result->fetch_row()) {
    printf("%s (%s)\n", $row[0], $row[1]);
    }

    过程化风格

    <?php

    mysqli_report    (MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
    $mysqli = mysqli_connect("localhost", "my_user", "my_password", "world");

    $query = "SELECT Name, CountryCode FROM City ORDER BY ID DESC";

    $result = mysqli_query($mysqli, $query);

    /* fetch associative array */
    while ($row = mysqli_fetch_row($result)) {
    printf("%s (%s)\n", $row[0], $row[1]);
    }

    以上示例的输出类似于：

     
Pueblo (USA)
Arvada (USA)
Cape Coral (USA)
Green Bay (USA)
Santa Clara (USA)

    参见

    ＋add a note

    User Contributed Notes 4 notes

    up
    19
    Stephen
    16 years ago
    It's worth noting that the MySQLi functions (and, I presume, the MySQL functions) fetch a string regardless of the MySQL data type. E.g. if you fetch a row with an integer column, the corresponding value for that column and row will still be stored as a string in the array returned by mysql_fetch_row.
    up
    5
    sainthyoga2003 at gmail dot com
    9 years ago
    Note that mysqli_fetch() is deprecated but still is in PHP function list. mysqli_fetch_row() is nowadays mysql procedural style used, but is not listed in PHP functions.
    up
    5
    evangun2001 at yahoo dot fr
    16 years ago
    Remember that fetch() and fetch_row() are two different things, and differ in the way to use them.

    - fetch() is used on a statement (like an executed prepared statement) and needs to be used in association with bind_result().

    - fetch_row() is used on a result (like the result of query()).

    As a consequence, if you want to use to use fetch_row() with an executed prepared statement, first you'll have to get the result out of this statement with mysqli_store_result() or mysqli_use_result().
    up
    1
    maillist at pnpitalia.it
    19 years ago
    from "README.PHP4-TO-PHP5-THIN-CHANGES"

    4. Be careful when porting from ext/mysql to ext/mysqli. The following
    functions return NULL when no more data is available in the result set
    (ext/mysql's functions return FALSE).

    - mysqli_fetch_row()
    - mysqli_fetch_array()
    - mysqli_fetch_assoc()
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