Php/docs/mysqli-result.fetch-object

• PHP Manual
• mysqli_result
• Returns the current row of a result set as an object

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

public mysqli_result::fetch_object ([ string $class_name = "stdClass" [, array $params ]] ) : object

过程化风格

mysqli_fetch_object ( mysqli_result $result [, string $class_name = "stdClass" [, array $params ]] ) : object

The mysqli_fetch_object() will return 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.

Note that mysqli_fetch_object() sets the properties of the object before calling the object constructor.

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。

class_name

The name of the class to instantiate, set the properties of and return. If not specified, a stdClass object is returned.

params

An optional array of parameters to pass to the constructor for class_name objects.

返回值

Returns an object with string properties that corresponds to the fetched row or null if there are no more rows in resultset.

Note: 此函数返回的字段名大小写敏感。

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 ($obj = $result->fetch_object()) {        printf ("%s (%s)\n", $obj->Name, $obj->CountryCode);    }    /* 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, $query)) {    /* fetch associative array */    while ($obj = mysqli_fetch_object($result)) {        printf ("%s (%s)\n", $obj->Name, $obj->CountryCode);    }    /* free result set */    mysqli_free_result($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_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