Php/docs/mysqli-result.fetch-row

• PHP Manual
• mysqli_result
• Get a result row as an enumerated array

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 ( ) : mixed

过程化风格

mysqli_fetch_row ( mysqli_result $result ) : mixed

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.

参数

result

仅以过程化样式：由 mysqli_query()，mysqli_store_result() 或 mysqli_use_result()返回的结果集标识。

返回值

mysqli_fetch_row() returns an array of strings that corresponds to the fetched row or null if there are no more rows in result set.

Note: 此函数将 NULL 字段设置为 PHP null 值。

范例

Example #1 面向对象风格

<?php$mysqli = new mysqli("localhost", "my_user", "my_password", "world");/* check connection */if (mysqli_connect_errno()) {    printf("Connect failed: %s\n", mysqli_connect_error());    exit();}$query = "SELECT Name, CountryCode FROM City ORDER by ID DESC LIMIT 50,5";if ($result = $mysqli->query($query)) {    /* fetch object array */    while ($row = $result->fetch_row()) {        printf ("%s (%s)\n", $row[0], $row[1]);    }    /* free result set */    $result->close();}/* close connection */$mysqli->close();?>

Example #2 过程化风格

<?php$link = mysqli_connect("localhost", "my_user", "my_password", "world");/* check connection */if (mysqli_connect_errno()) {    printf("Connect failed: %s\n", mysqli_connect_error());    exit();}$query = "SELECT Name, CountryCode FROM City ORDER by ID DESC LIMIT 50,5";if ($result = mysqli_query($link, $query)) {    /* fetch associative array */    while ($row = mysqli_fetch_row($result)) {        printf ("%s (%s)\n", $row[0], $row[1]);    }    /* free result set */    mysqli_free_result($result);}/* close connection */mysqli_close($link);?>

以上例程会输出：

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