( ! ) Warning: mysqli_real_connect(): (HY000/2002): No such file or directory in /var/www/html/wp-includes/wp-db.php on line 1635
Call Stack
#	Time	Memory	Function	Location
1	0.0001	238472	{main}( )	.../index.php:0
2	0.0002	238904	require( '/var/www/html/wp-blog-header.php' )	.../index.php:17
3	0.0002	239568	require_once( '/var/www/html/wp-load.php' )	.../wp-blog-header.php:13
4	0.0003	240304	require_once( '/var/www/html/wp-config.php' )	.../wp-load.php:37
5	0.0003	241544	require_once( '/var/www/html/wp-settings.php' )	.../wp-config.php:54
6	0.0043	777344	require_wp_db( )	.../wp-settings.php:124
7	0.0044	831696	require_once( '/var/www/html/wp-content/db.php' )	.../load.php:470
8	0.0106	1161200	W3TC\DbCache_Wpdb::instance( )	.../db.php:41
9	0.0109	1252616	W3TC\DbCache_WpdbNew->initialize( )	.../DbCache_Wpdb.php:53
10	0.0109	1252664	W3TC\DbCache_WpdbInjection_QueryCaching->initialize( )	.../DbCache_WpdbNew.php:104
11	0.0109	1252768	W3TC\_CallUnderlying->initialize( )	.../DbCache_WpdbInjection_QueryCaching.php:232
12	0.0109	1252888	W3TC\DbCache_WpdbNew->initialize( )	.../DbCache_WpdbNew.php:359
13	0.0109	1252936	W3TC\DbCache_WpdbInjection->initialize( )	.../DbCache_WpdbNew.php:104
14	0.0109	1252984	W3TC\DbCache_WpdbNew->default_initialize( )	.../DbCache_WpdbInjection.php:38
15	0.0109	1253176	wpdb->__construct( )	.../DbCache_WpdbNew.php:218
16	0.0109	1252984	W3TC\DbCache_WpdbNew->db_connect( )	.../wp-db.php:632
17	0.0110	1253432	wpdb->db_connect( )	.../DbCache_WpdbNew.php:97
18	0.0112	1254968	mysqli_real_connect ( )	.../wp-db.php:1635

( ! ) Warning: mysqli_real_connect(): (HY000/2002): No such file or directory in /var/www/html/wp-includes/wp-db.php on line 1635

Call Stack

Time

Memory

Function

Location

0.0001

238472

{main}( )

.../index.php:0

0.0002

238904

require( '/var/www/html/wp-blog-header.php' )

.../index.php:17

0.0002

239568

require_once( '/var/www/html/wp-load.php' )

.../wp-blog-header.php:13

0.0003

240304

require_once( '/var/www/html/wp-config.php' )

.../wp-load.php:37

0.0003

241544

require_once( '/var/www/html/wp-settings.php' )

.../wp-config.php:54

0.0043

777344

require_wp_db( )

.../wp-settings.php:124

0.0044

831696

require_once( '/var/www/html/wp-content/db.php' )

.../load.php:470

0.0106

1161200

W3TC\DbCache_Wpdb::instance( )

.../db.php:41

0.0109

1252616

W3TC\DbCache_WpdbNew->initialize( )

.../DbCache_Wpdb.php:53

0.0109

1252664

W3TC\DbCache_WpdbInjection_QueryCaching->initialize( )

.../DbCache_WpdbNew.php:104

0.0109

1252768

W3TC\_CallUnderlying->initialize( )

.../DbCache_WpdbInjection_QueryCaching.php:232

0.0109

1252888

W3TC\DbCache_WpdbNew->initialize( )

.../DbCache_WpdbNew.php:359

0.0109

1252936

W3TC\DbCache_WpdbInjection->initialize( )

.../DbCache_WpdbNew.php:104

0.0109

1252984

W3TC\DbCache_WpdbNew->default_initialize( )

.../DbCache_WpdbInjection.php:38

0.0109

1253176

wpdb->__construct( )

.../DbCache_WpdbNew.php:218

0.0109

1252984

W3TC\DbCache_WpdbNew->db_connect( )

.../wp-db.php:632

0.0110

1253432

wpdb->db_connect( )

.../DbCache_WpdbNew.php:97

0.0112

1254968

mysqli_real_connect ( )

.../wp-db.php:1635

( ! ) Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in /var/www/html/wp-includes/wp-db.php on line 1667
Call Stack
#	Time	Memory	Function	Location
1	0.0001	238472	{main}( )	.../index.php:0
2	0.0002	238904	require( '/var/www/html/wp-blog-header.php' )	.../index.php:17
3	0.0002	239568	require_once( '/var/www/html/wp-load.php' )	.../wp-blog-header.php:13
4	0.0003	240304	require_once( '/var/www/html/wp-config.php' )	.../wp-load.php:37
5	0.0003	241544	require_once( '/var/www/html/wp-settings.php' )	.../wp-config.php:54
6	0.0043	777344	require_wp_db( )	.../wp-settings.php:124
7	0.0044	831696	require_once( '/var/www/html/wp-content/db.php' )	.../load.php:470
8	0.0106	1161200	W3TC\DbCache_Wpdb::instance( )	.../db.php:41
9	0.0109	1252616	W3TC\DbCache_WpdbNew->initialize( )	.../DbCache_Wpdb.php:53
10	0.0109	1252664	W3TC\DbCache_WpdbInjection_QueryCaching->initialize( )	.../DbCache_WpdbNew.php:104
11	0.0109	1252768	W3TC\_CallUnderlying->initialize( )	.../DbCache_WpdbInjection_QueryCaching.php:232
12	0.0109	1252888	W3TC\DbCache_WpdbNew->initialize( )	.../DbCache_WpdbNew.php:359
13	0.0109	1252936	W3TC\DbCache_WpdbInjection->initialize( )	.../DbCache_WpdbNew.php:104
14	0.0109	1252984	W3TC\DbCache_WpdbNew->default_initialize( )	.../DbCache_WpdbInjection.php:38
15	0.0109	1253176	wpdb->__construct( )	.../DbCache_WpdbNew.php:218
16	0.0109	1252984	W3TC\DbCache_WpdbNew->db_connect( )	.../wp-db.php:632
17	0.0110	1253432	wpdb->db_connect( )	.../DbCache_WpdbNew.php:97
18	0.0117	1254792	W3TC\DbCache_WpdbNew->db_connect( )	.../wp-db.php:1662
19	0.0117	1254792	wpdb->db_connect( )	.../DbCache_WpdbNew.php:97
20	0.0118	1254936	mysql_connect ( )	.../wp-db.php:1667

( ! ) Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in /var/www/html/wp-includes/wp-db.php on line 1667

Call Stack

Time

Memory

Function

Location

0.0001

238472

{main}( )

.../index.php:0

0.0002

238904

require( '/var/www/html/wp-blog-header.php' )

.../index.php:17

0.0002

239568

require_once( '/var/www/html/wp-load.php' )

.../wp-blog-header.php:13

0.0003

240304

require_once( '/var/www/html/wp-config.php' )

.../wp-load.php:37

0.0003

241544

require_once( '/var/www/html/wp-settings.php' )

.../wp-config.php:54

0.0043

777344

require_wp_db( )

.../wp-settings.php:124

0.0044

831696

require_once( '/var/www/html/wp-content/db.php' )

.../load.php:470

0.0106

1161200

W3TC\DbCache_Wpdb::instance( )

.../db.php:41

0.0109

1252616

W3TC\DbCache_WpdbNew->initialize( )

.../DbCache_Wpdb.php:53

0.0109

1252664

W3TC\DbCache_WpdbInjection_QueryCaching->initialize( )

.../DbCache_WpdbNew.php:104

0.0109

1252768

W3TC\_CallUnderlying->initialize( )

.../DbCache_WpdbInjection_QueryCaching.php:232

0.0109

1252888

W3TC\DbCache_WpdbNew->initialize( )

.../DbCache_WpdbNew.php:359

0.0109

1252936

W3TC\DbCache_WpdbInjection->initialize( )

.../DbCache_WpdbNew.php:104

0.0109

1252984

W3TC\DbCache_WpdbNew->default_initialize( )

.../DbCache_WpdbInjection.php:38

0.0109

1253176

wpdb->__construct( )

.../DbCache_WpdbNew.php:218

0.0109

1252984

W3TC\DbCache_WpdbNew->db_connect( )

.../wp-db.php:632

0.0110

1253432

wpdb->db_connect( )

.../DbCache_WpdbNew.php:97

0.0117

1254792

W3TC\DbCache_WpdbNew->db_connect( )

.../wp-db.php:1662

0.0117

1254792

wpdb->db_connect( )

.../DbCache_WpdbNew.php:97

0.0118

1254936

mysql_connect ( )

.../wp-db.php:1667

( ! ) Warning: mysql_connect(): No such file or directory in /var/www/html/wp-includes/wp-db.php on line 1667
Call Stack
#	Time	Memory	Function	Location
1	0.0001	238472	{main}( )	.../index.php:0
2	0.0002	238904	require( '/var/www/html/wp-blog-header.php' )	.../index.php:17
3	0.0002	239568	require_once( '/var/www/html/wp-load.php' )	.../wp-blog-header.php:13
4	0.0003	240304	require_once( '/var/www/html/wp-config.php' )	.../wp-load.php:37
5	0.0003	241544	require_once( '/var/www/html/wp-settings.php' )	.../wp-config.php:54
6	0.0043	777344	require_wp_db( )	.../wp-settings.php:124
7	0.0044	831696	require_once( '/var/www/html/wp-content/db.php' )	.../load.php:470
8	0.0106	1161200	W3TC\DbCache_Wpdb::instance( )	.../db.php:41
9	0.0109	1252616	W3TC\DbCache_WpdbNew->initialize( )	.../DbCache_Wpdb.php:53
10	0.0109	1252664	W3TC\DbCache_WpdbInjection_QueryCaching->initialize( )	.../DbCache_WpdbNew.php:104
11	0.0109	1252768	W3TC\_CallUnderlying->initialize( )	.../DbCache_WpdbInjection_QueryCaching.php:232
12	0.0109	1252888	W3TC\DbCache_WpdbNew->initialize( )	.../DbCache_WpdbNew.php:359
13	0.0109	1252936	W3TC\DbCache_WpdbInjection->initialize( )	.../DbCache_WpdbNew.php:104
14	0.0109	1252984	W3TC\DbCache_WpdbNew->default_initialize( )	.../DbCache_WpdbInjection.php:38
15	0.0109	1253176	wpdb->__construct( )	.../DbCache_WpdbNew.php:218
16	0.0109	1252984	W3TC\DbCache_WpdbNew->db_connect( )	.../wp-db.php:632
17	0.0110	1253432	wpdb->db_connect( )	.../DbCache_WpdbNew.php:97
18	0.0117	1254792	W3TC\DbCache_WpdbNew->db_connect( )	.../wp-db.php:1662
19	0.0117	1254792	wpdb->db_connect( )	.../DbCache_WpdbNew.php:97
20	0.0118	1254936	mysql_connect ( )	.../wp-db.php:1667

( ! ) Warning: mysql_connect(): No such file or directory in /var/www/html/wp-includes/wp-db.php on line 1667

Call Stack

Time

Memory

Function

Location

0.0001

238472

{main}( )

.../index.php:0

0.0002

238904

require( '/var/www/html/wp-blog-header.php' )

.../index.php:17

0.0002

239568

require_once( '/var/www/html/wp-load.php' )

.../wp-blog-header.php:13

0.0003

240304

require_once( '/var/www/html/wp-config.php' )

.../wp-load.php:37

0.0003

241544

require_once( '/var/www/html/wp-settings.php' )

.../wp-config.php:54

0.0043

777344

require_wp_db( )

.../wp-settings.php:124

0.0044

831696

require_once( '/var/www/html/wp-content/db.php' )

.../load.php:470

0.0106

1161200

W3TC\DbCache_Wpdb::instance( )

.../db.php:41

0.0109

1252616

W3TC\DbCache_WpdbNew->initialize( )

.../DbCache_Wpdb.php:53

0.0109

1252664

W3TC\DbCache_WpdbInjection_QueryCaching->initialize( )

.../DbCache_WpdbNew.php:104

0.0109

1252768

W3TC\_CallUnderlying->initialize( )

.../DbCache_WpdbInjection_QueryCaching.php:232

0.0109

1252888

W3TC\DbCache_WpdbNew->initialize( )

.../DbCache_WpdbNew.php:359

0.0109

1252936

W3TC\DbCache_WpdbInjection->initialize( )

.../DbCache_WpdbNew.php:104

0.0109

1252984

W3TC\DbCache_WpdbNew->default_initialize( )

.../DbCache_WpdbInjection.php:38

0.0109

1253176

wpdb->__construct( )

.../DbCache_WpdbNew.php:218

0.0109

1252984

W3TC\DbCache_WpdbNew->db_connect( )

.../wp-db.php:632

0.0110

1253432

wpdb->db_connect( )

.../DbCache_WpdbNew.php:97

0.0117

1254792

W3TC\DbCache_WpdbNew->db_connect( )

.../wp-db.php:1662

0.0117

1254792

wpdb->db_connect( )

.../DbCache_WpdbNew.php:97

0.0118

1254936

mysql_connect ( )

.../wp-db.php:1667

No such file or directory

Error establishing a database connection

This either means that the username and password information in your wp-config.php file is incorrect or we can’t contact the database server at localhost. This could mean your host’s database server is down.

Are you sure you have the correct username and password?
Are you sure you have typed the correct hostname?
Are you sure the database server is running?

If you’re unsure what these terms mean you should probably contact your host. If you still need help you can always visit the WordPress Support Forums.