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ÔÚThinkPHP¿ò¼ÜÖУ¬ÎÒÃÇ¿ÉÒÔÔÚconfigĿ¼ÏÂÃæµÄdatabase.phpÎļþÖнç˵ÅþÁ¬Êý¾Ý¿âµÄÉèÖÃÐÅÏ¢¡£ÀýÈ磺

return [
    // Êý¾Ý¿âÀàÐÍ
    'type'        => 'mysql',
    // Êý¾Ý¿âÅþÁ¬DSNÉèÖÃ
    'dsn'         => '',
    // Ð§ÀÍÆ÷µØµã
    'hostname'    => 'localhost',
    // Êý¾Ý¿âÃû
    'database'    => 'test',
    // Êý¾Ý¿âÓû§Ãû
    'username'    => 'root',
    // Êý¾Ý¿âÃÜÂë
    'password'    => 'root',
    // Êý¾Ý¿âÅþÁ¬¶Ë¿Ú
    'hostport'    => '3306',
    // Êý¾Ý¿âÅþÁ¬²ÎÊý
    'params'      => [],
    // Êý¾Ý¿â±àÂëĬÈϽÓÄÉutf8
    'charset'     => 'utf8',
    // Êý¾Ý¿â±íǰ׺
    'prefix'      => 'tp_',
    // ÊÇ·ñÐèÒª¶ÏÏßÖØÁ¬
    'break_reconnect' => true,
];

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ÔÚThinkPHP¿ò¼ÜÖУ¬Ê¹ÓÃDbÀàÀ´²Ù×÷Êý¾Ý¿â¡£ÎÒÃÇ¿ÉÒÔÔÚ¿ØÖÆÆ÷´úÂëÖмÓÈëÒÔÏ´úÂ룺

use think\Db;

class UserController extends Controller
{
    // Æ¾Ö¤IDÅÌÎÊÓû§ÐÕÃû
    public function getUserName($id)
    {
        $result = Db::table('user')->where(['id' => $id])->value('name');
        return $result;
    }
}

µÇ¼ºó¸´ÖÆ

ÔÚgetUserNameÒªÁìÖУ¬ÎÒÃÇʹÓÃDbÀàµÄtableÒªÁìÖ¸¶¨ÒªÅÌÎʵÄÊý¾Ý±í£¬Ê¹ÓÃwhereÒªÁìÖ¸¶¨ÅÌÎÊÌõ¼þ£¬ÆäÖÐ[‘id’ => $id]ÌåÏÖÅÌÎÊid¼´ÊÇÖ¸¶¨$idÖµµÄ¼Í¼£¬×îºóʹÓÃvalueÒªÁìÀ´»ñÈ¡name×ֶεÄÖµ¡£ÔÚÏÖʵµÄÓ¦ÓÃÖУ¬getUserNameÒªÁì¿ÉÄܻ᷵»Ø¶à¸ö×ֶεÄÖµ£¬´Ëʱ¿ÉÒÔʹÓÃfindÒªÁìÀ´»ñÈ¡ÅÌÎʵ½µÄÒ»ÕûÌõ¼Í¼£¬ÀýÈ磺

public function getUserInfo($id)
{
    $result = Db::table('user')->where(['id' => $id])->find();
    return $result;
}

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