mysqli_result::fetch_object

mysqli_fetch_object

(PHP 5, PHP 7)

mysqli_result::fetch_object -- mysqli_fetch_objectReturns the current row of a result set as an object

说明

面向对象风格

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()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

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