Fetch the next row of a result set as an enumerated array

# 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 function mysqli_result::fetch_row(): array|null|false

过程化风格

function 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

- mysqli_fetch_array() - Fetch the next row of a result set as an associative, a numeric array, or both
- mysqli_fetch_assoc() - Fetch the next row of a result set as an associative array
- mysqli_fetch_column() - Fetch a single column from the next row of a result set
- mysqli_fetch_object() - Fetch the next row of a result set as an object
- mysqli_query() - 对数据库执行查询
- mysqli_data_seek() - Adjusts the result pointer to an arbitrary row in the result

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