mysqli_result::fetch_object

mysqli_fetch_object

(PHP 5, PHP 7, PHP 8)

mysqli_result::fetch_object -- mysqli_fetch_object — Fetch the next row of a result set as an object

Опис

Об'єктно-орієнтований стиль

public mysqli_result::fetch_object(string $class = "stdClass", array $constructor_args = []): object|null|false

Процедурний стиль

mysqli_fetch_object(mysqli_result $result, string $class = "stdClass", array $constructor_args = []): object|null|false

Fetches one row of data from the result set and returns it as an object, where each property represents the name of the result set's column. Each subsequent call to this function will return the next row within the result set, or null if there are no more rows.

If two or more columns of the result have the same name, the last column will take precedence and overwrite any previous data. To access multiple columns with the same name, mysqli_fetch_row() may be used to fetch the numerically indexed array, or aliases may be used in the SQL query select list to give columns different names.

Зауваження: This function sets the properties of the object before calling the object constructor.

Зауваження: Ця функція є чутливою до регістру назв полів.

Зауваження: Ця функція встановлює NULL-полям значення PHP null.

Параметри

result: Тільки процедурний стиль: об'єкт mysqli_result, якого повертає одна з функцій mysqli_query(), mysqli_store_result(), mysqli_use_result() або mysqli_stmt_get_result().
class: The name of the class to instantiate, set the properties of and return. If not specified, a stdClass object is returned.
constructor_args: An optional array of parameters to pass to the constructor for class objects.

Значення, що повертаються

Returns an object representing the fetched row, where each property represents the name of the result set's column, null if there are no more rows in the result set, або false в разі помилки.

Помилки/виключення

A ValueError is thrown when the constructor_args is non-empty with the class not having constructor.

Журнал змін

Версія	Опис
8.3.0	Now throws a ValueError exception when the `constructor_args` is non-empty with the class not having constructor; previously an Exception was thrown.
8.0.0	`constructor_args` now accepts `[]` for constructors with 0 parameters; previously an exception was thrown.

Приклади

Приклад #1 mysqli_result::fetch_object() example

Об'єктно-орієнтований стиль

<?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);

while ($obj = $result->fetch_object()) {
    printf("%s (%s)\n", $obj->Name, $obj->CountryCode);
}

Процедурний стиль

<?php

mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$link = mysqli_connect("localhost", "my_user", "my_password", "world");

$query = "SELECT Name, CountryCode FROM City ORDER BY ID DESC";

$result = mysqli_query($link, $query);

while ($obj = mysqli_fetch_object($result)) {
    printf("%s (%s)\n", $obj->Name, $obj->CountryCode);
}

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Прогляньте також

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_row() - Fetch the next row of a result set as an enumerated array
mysqli_query() - Performs a query on the database
mysqli_data_seek() - Adjusts the result pointer to an arbitrary row in the result