New users ask questions about php connection failure to database

Source: Internet
Author: User
New users ask for questions about php connection failure to the database! The code is as follows: PHPcode & lt ;! DOCTYPEhtmlPUBLIC & quot;-W3CDTDXHTML1.0TransitionalEN & quot; www. w3.orgTRxhtml1DTDxhtml1-transitional. dtd & quot; & gt; new users require php to connect to databases!
The code is as follows:
PHP code
  

  $ Conn = MySql_connect ("localhost", "root", "root") or die ("connect fail". MySql_error (); echo"

Success

"; $ OK = MySql_select_db (" test ", $ conn); if ($ OK) {echo"

Database selected

";} Else {echo"

Failed to select

";}?> Untitled Document


But the result is connect fail.

------ Solution --------------------
Echo mysql_error ();
------ Solution --------------------
Modify localhost to 127.0.0.1.
Also, refer to the output error on the first floor to see the specific cause.
------ Solution --------------------
...


= Why are there more?>

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