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

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