mysqli_result::fetch_row
mysqli_fetch_row
(PHP 5, PHP 7)
mysqli_result::fetch_row -- mysqli_fetch_row — Get a result row 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
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() 返回的结果集标识。
返回值
mysqli_fetch_row() returns an array of values that corresponds to the fetched row
or null
if there are no more rows in result set.
范例
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]);
}
以上例程的输出类似于:
Pueblo (USA) Arvada (USA) Cape Coral (USA) Green Bay (USA) Santa Clara (USA)
参见
- mysqli_fetch_array() - Fetch a result row as an associative, a numeric array, or both
- mysqli_fetch_assoc() - Fetch a result row as an associative array
- mysqli_fetch_object() - Returns the current row of a result set as an object
- mysqli_query() - 对数据库执行一次查询
- mysqli_data_seek() - Adjusts the result pointer to an arbitrary row in the result