Test MySQL Connection

The following is a great way to verify a MySQL / MariaDB database connection issue. Create a file with with the name ultra-db-connect-test.php and populate it with the following information being sure to update the top four variables to your environment and run :


<?php
$dbname = 'name';
$dbuser = 'user';
$dbpass = 'pass';
$dbhost = 'host';
$connect = mysql_connect($dbhost, $dbuser, $dbpass) or die("Unable to Connect to '$dbhost'");
mysql_select_db($dbname) or die("Could not open the db '$dbname'");
$test_query = "SHOW TABLES FROM $dbname";
$result = mysql_query($test_query);
$tblCnt = 0;
while($tbl = mysql_fetch_array($result)) {
  $tblCnt++;
  #echo $tbl[0]."<br ?---->\n";
}
if (!$tblCnt) {
  echo "No Tables Found<br />\n";
else {
  echo "There Are $tblCnt Tables<br />\n";
}



For additional information regarding PHP and modules on the server create a file with the name ultra-php-info.php and populate it with the following information :

<?php

// Show all information, defaults to INFO_ALL
phpinfo();

// Show just the module information.
// phpinfo(8) yields identical results.
phpinfo(INFO_MODULES);

?>



Sometimes you may need a different version of PHP, to switch PHP version log into your hosting control panel and click Select PHP Version.



Share this page:


Was this article useful? Have any suggestions or improvements to the information?

Also Read

PHP information

To view your current version of PHP you will create a php file, for example info.php, and place...

Internal Server Error with PHPList

PHPList produces internal server error. Checking error logs results in: Invalid command...

Learn MySQL

If you do not know how to use MySQL there are some great guides at the following websites....

Running a PHP file with a cron job

To run a PHP file from cron, use the "cron jobs" section of your control panel. Use the following...

Strict Standards: Non-static method JLoader::register() should not be called statically in...

This error indicates your script is using out-dated PHP commands. It is best to update your...