Codeigniter Fehlermeldung auf Live-Server: mysqli :: real_connect(): (HY000/2002): Verbindung verweigert

Question

Ich erstelle eine Website mit Codeigniter (Version: 3.05), PHP (Version: 5.6.24), MySQL (Version : 10.1.16 mariaDB). Auf dem lokalen Server: Betriebssystem = OSX, PHP-Version = 5.6.24, MySQL-Version = 10.1.16 mariaDB. Bei Hosting Server: Betriebssystem = FreeBSD (unix), phpversion = 5.6.30, mysql version =: 5.5.38-log. Die Site funktioniert auf dem lokalen Server einwandfrei. Aber es gibt einen Fehler auf dem Live-Server, wie unten gezeigt.

A PHP Error was encountered 

    Severity: Warning 

    Message: mysqli::real_connect(): (HY000/2002): Connection refused 

    Filename: mysqli/mysqli_driver.php 

    Line Number: 202 

    Backtrace: 

    File: /home/sv-001/www/user/myweb/application/third_party/MX/Loader.php 
    Line: 109 
    Function: DB 

    File: /home/sv-001/www/user/myweb/application/third_party/MX/Loader.php 
    Line: 65 
    Function: initialize 

    File: /home/sv-001/www/user/myweb/application/modules/home/controllers/Home.php 
    Line: 8 
    Function: __construct 

    File: /home/sv-001/www/user/myweb/index.php 
    Line: 294 
    Function: require_once 

Ich habe meine Datenbankdatei (database.php) mehrmals wurde die Überprüfung, aber ich habe keinen Fehler es in Bezug auf Hostname, Benutzername, Passwort, Datenbanknamen finden.

database.php Datei

$db['default'] = array(
     'dsn' => '', 
     'hostname' => 'testurl.com', 
     'username' => 'username', 
     'password' => 'password', 
     'database' => 'dbname', 
     'dbdriver' => 'mysqli', 
     'dbprefix' => '', 
     'pconnect' => FALSE, 
     'db_debug' => (ENVIRONMENT !== 'production'), 
     'cache_on' => FALSE, 
     'cachedir' => '', 
     'char_set' => 'utf8', 
     'dbcollat' => 'utf8_general_ci', 
     'swap_pre' => '', 
     'encrypt' => FALSE, 
     'compress' => FALSE, 
     'stricton' => FALSE, 
     'failover' => array(), 
     'save_queries' => TRUE 
); 

config.php ist wie folgt:

if($_SERVER['HTTP_HOST'] == "localhost" OR $_SERVER['HTTP_HOST'] == "testurl.com") 
    $config['base_url'] = 'http://'.$_SERVER['HTTP_HOST'].'/myfolder/myfolder2/'; 
else if($_SERVER['HTTP_HOST'] == "testurl.com" OR $_SERVER['HTTP_HOST'] == "testurl.com") 
    $config['base_url'] = 'http://'.$_SERVER['HTTP_HOST'].'/myfolder2/'; 
else 
    $config['base_url'] = 'http://'.$_SERVER['HTTP_HOST']; 

$config['index_page'] = 'index.php'; 
//$config['index_page'] = ''; 

$config['uri_protocol'] = 'REQUEST_URI'; 

$config['url_suffix'] = ''; 

$config['language'] = 'english'; 

$config['charset'] = 'UTF-8'; 

$config['enable_hooks'] = FALSE; 

$config['subclass_prefix'] = 'MY_'; 
$config['composer_autoload'] = FALSE; 


$config['permitted_uri_chars'] = 'a-z 0-9~%.:_\-'; 

$config['allow_get_array'] = TRUE; 
$config['enable_query_strings'] = FALSE; 
$config['controller_trigger'] = 'c'; 
$config['function_trigger'] = 'm'; 
$config['directory_trigger'] = 'd'; 

$config['log_threshold'] = 0; 

$config['log_path'] = ''; 

$config['log_file_extension'] = ''; 

$config['log_file_permissions'] = 0644; 
$config['log_date_format'] = 'Y-m-d H:i:s'; 

$config['error_views_path'] = ''; 

$config['cache_path'] = ''; 

$config['cache_query_string'] = FALSE; 

$config['sess_driver'] = 'files'; 
$config['sess_cookie_name'] = 'ci_session'; 
$config['sess_expiration'] = 7200; 
//$config['sess_save_path'] = NULL; 
$config['sess_save_path'] = APPPATH . 'cache'; 
$config['sess_match_ip'] = FALSE; 
$config['sess_time_to_update'] = 300; 
$config['sess_regenerate_destroy'] = FALSE; 

$config['cookie_prefix'] = ''; 
$config['cookie_domain'] = ''; 
$config['cookie_path']  = '/'; 
$config['cookie_secure'] = FALSE; 
$config['cookie_httponly'] = FALSE; 

$config['standardize_newlines'] = FALSE; 

$config['global_xss_filtering'] = FALSE; 

$config['csrf_protection'] = FALSE; 
$config['csrf_token_name'] = 'csrf_test_name'; 
$config['csrf_cookie_name'] = 'csrf_cookie_name'; 
$config['csrf_expire'] = 7200; 
//$config['csrf_regenerate'] = TRUE; 
$config['csrf_regenerate'] = FALSE; 
$config['csrf_exclude_uris'] = array(); 
$config['compress_output'] = FALSE; 

$config['time_reference'] = 'local'; 

$config['rewrite_short_tags'] = FALSE; 

$config['proxy_ips'] = ''; 

Answer 1

In Ihrem database.php anstatt, "localhost" Try "127.0.0.1" setzen. Dies funktioniert in den meisten Fällen.

Wenn Sie immer noch einen Fehler erhalten, dann posten Sie Ihre Datenbank.php Datei.

Answer 2

Versuchen Sie wie folgt. Für lokalen Server.

$active_group = 'default'; 
$query_builder = TRUE; 

$db['default'] = array(
    'dsn'  => '', 
    'hostname' => 'localhost', 
    'username' => '<user>', 
    'password' => '<password>', 
    'database' => '<database>', 
    'dbdriver' => 'mysqli', 
    'dbprefix' => '', 
    'pconnect' => FALSE, 
    'db_debug' => (ENVIRONMENT !== 'production'), 
    'cache_on' => FALSE, 
    'cachedir' => '', 
    'char_set' => 'utf8', 
    'dbcollat' => 'utf8_general_ci', 
    'swap_pre' => '', 
    'encrypt' => FALSE, 
    'compress' => FALSE, 
    'stricton' => FALSE, 
    'failover' => array(), 
    'save_queries' => TRUE 
); 

Answer 3

Verwenden 'hostname' => 'localhost' statt 'hostname' => 'testurl.com'. Obwohl Sie Ihren Code auf dem Live-Server hochladen, bleibt der Hostname nur "localhost".