(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
オブジェクト指向型
手続き型
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。
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。
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)
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.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.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().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()