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POwhat is preventing PHP from connecting to my MySQL database?
 

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  1. POwhat is preventing PHP from connecting to my MySQL database?
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    <p>[Updated below]</p> <p>I am having a problem connecting to a MySQL database using a Bitnami LAMP stack. This is the code I used to connect on the shared-hosting server where I originally hosted the database: </p> <pre><code>DEFINE ('DB_USER', 'username'); DEFINE ('DB_PASSWORD', 'password'); DEFINE ('DB_HOST', 'localhost'); DEFINE ('DB_NAME', 'database'); if ($dbc = mysql_connect (DB_HOST, DB_USER, DB_PASSWORD)) { // Make the connnection. if (!mysql_select_db (DB_NAME)) { // If it can't select the database. // Handle the error. trigger_error("Could not select the database!\n&lt;br /&gt;MySQL Error: " . mysql_error()); exit(); } // End of mysql_select_db IF. } else { // If it couldn't connect to MySQL. trigger_error("Could not connect to MySQL!\n&lt;br /&gt;MySQL Error: " . mysql_error()); exit(); } // End of $dbc IF. </code></pre> <p>Running this on my Bitnami server, I get no response (not even an error message). (PHP is working fine.)</p> <p>I then tried</p> <pre><code>&lt;?php $link = mysql_connect('localhost', 'username', 'password'); if (!$link) { die('Could not connect: ' . mysql_error()); } echo 'Connected successfully'; mysql_close($link); ?&gt; </code></pre> <p>and got</p> <pre><code>Could not connect: Access denied for user 'username'@'localhost' (using password: YES) </code></pre> <p>this username/password combination definitely exists and (as far as I can tell) has access to the database in question. I am wondering what I am doing wrong and why the original script does not produce an error (or connect).</p> <p><strong>Update:</strong></p> <p>I followed Michael's suggestion below, and was able to connect. I wanted to reproduce the issue so I deleted that user then created a user testuser via</p> <pre><code>CREATE USER 'testuser'@'%' IDENTIFIED BY '***'; GRANT SELECT , INSERT , UPDATE , DELETE , FILE ON * . * TO 'testuser'@'%' IDENTIFIED BY '***' WITH MAX_QUERIES_PER_HOUR 0 MAX_CONNECTIONS_PER_HOUR 0 MAX_UPDATES_PER_HOUR 0 MAX_USER_CONNECTIONS 0 ; </code></pre> <p>Then following Michael's suggestion, I executed</p> <pre><code>GRANT ALL PRIVILEGES ON test . * TO testuser@localhost IDENTIFIED BY 'password' </code></pre> <p>but again I am getting</p> <pre><code>Could not connect: Access denied for user 'testuser'@'localhost' (using password: YES) </code></pre> <p>(This doesn't work whether I use '%' or 'localhost')</p> <p>this is what the privileges look like for testuser in phpmyadmin</p> <pre><code>Database Privileges Grant Table-specific privileges test ALL PRIVILEGES No No Edit Privileges </code></pre>
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    1. COThe username for your database is `username`?
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      1. USJivings
    2. COIf it doesn't produce an error on the hosted server, it's likely because `display_errors` is turned off in php.ini.
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      1. POwhat is preventing PHP from connecting to my MySQL database?
      1. USMichael Berkowski
    3. COIs the host correct? If so, does substituting `localhost` with `127.0.0.1` work? Usually it is the same, but it forces the connect to use the TCP connection instead of possible local sockets, and circumvents misconfigured servers where 'localhost' is broken (yes, I have seen those...)
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      1. USWrikken
 

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