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    mysqli_result::fetch_row

    mysqli_fetch_row

    (PHP 5, PHP 7, PHP 8)

    mysqli_result::fetch_row -- mysqli_fetch_row — 結果セットの次の行を数値添字配列で取得する

    説明

    オブジェクト指向型

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

    手続き型

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

    結果セットからデータを 1 行取得し、それを数値添字の配列で 返します。各カラムは 0（ゼロ）から始まる添字に格納されます。 mysqli_fetch_row() 関数を続けてコールすると、 結果セットの次の行を返します。もう行がない場合には null を返します。

    注意: この関数は、 NULL フィールドに PHPの null 値を設定します。

    パラメータ

    result

    手続き型のみ: mysqli_query()、mysqli_store_result()、mysqli_use_result()、mysqli_stmt_get_result() が返す mysqli_result オブジェクト。

    戻り値

    mysqli_fetch_row() は取得した行のカラムを列挙した配列を 返します。結果セットにもう行がない場合には null を返します。 失敗した場合に false を返します

    例

    例1 mysqli_result::fetch_row() の例

    オブジェクト指向型

    <?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);

    /* オブジェクトの配列を取得します */
    while ($row = $result->fetch_row()) {
    printf("%s (%s)\n", $row[0], $row[1]);
    }

    手続き型

    <?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);

    /* 連想配列を取得します */
    while ($row = mysqli_fetch_row($result)) {
    printf("%s (%s)\n", $row[0], $row[1]);
    }

    上の例の出力は、 たとえば以下のようになります。

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

    参考

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    User Contributed Notes 4 notes

    up
    18
    Stephen
    17 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
    3
    sainthyoga2003 at gmail dot com
    10 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
    3
    maillist at pnpitalia.it
    20 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()
    up
    2
    evangun2001 at yahoo dot fr
    17 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().
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