mysqli_result::fetch_object
mysqli_fetch_object
(PHP 5, PHP 7)
mysqli_result::fetch_object -- mysqli_fetch_object — Returns the current row of a result set as an object
说明
面向对象风格
$class
= "stdClass"
, array $constructor_args
= []
) : object|null|false过程化风格
$result
, string $class
= "stdClass"
, array $constructor_args
= []
) : object|null|falseReturns the current row result set as an object where the attributes of the object represent the names of the fields found within the result set.
注意: This function sets the properties of the object before calling the object constructor.
注意: 此函数返回的字段名大小写敏感。
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。
-
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.
返回值
Returns an object that corresponds to the fetched
row or null
if there are no more rows in result set.
更新日志
版本 | 说明 |
---|---|
8.0.0 |
constructor_args now accepts [] for constructors with 0 parameters;
previously an exception was thrown.
|
范例
示例 #1 mysqli_result::fetch_object() 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 ($obj = $result->fetch_object()) {
printf("%s (%s)\n", $obj->Name, $obj->CountryCode);
}
过程化风格
<?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, $query);
/* fetch associative array */
while ($obj = mysqli_fetch_object($result)) {
printf("%s (%s)\n", $obj->Name, $obj->CountryCode);
}
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_row() - Get a result row as an enumerated array
- 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