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<?php
// MySQL specific install functions
/**
* Check if MySQL is available.
*
* @return
* TRUE/FALSE
*/
function mysql_is_available() {
return function_exists('mysql_connect');
}
/**
* Check if we can connect to MySQL.
*
* @return
* TRUE/FALSE
*/
function drupal_test_mysql($url, &$success) {
if (!mysql_is_available()) {
drupal_set_message(st('PHP MySQL support not enabled.'), 'error');
return FALSE;
}
$url = parse_url($url);
// Decode url-encoded information in the db connection string.
$url['user'] = urldecode($url['user']);
$url['pass'] = isset($url['pass']) ? urldecode($url['pass']) : '';
$url['host'] = urldecode($url['host']);
$url['path'] = urldecode($url['path']);
// Allow for non-standard MySQL port.
if (isset($url['port'])) {
$url['host'] = $url['host'] .':'. $url['port'];
}
// Test connecting to the database.
$connection = @mysql_connect($url['host'], $url['user'], $url['pass'], TRUE, 2);
if (!$connection) {
drupal_set_message(st('Failed to connect to your MySQL database server. MySQL reports the following message: %error.<ul><li>Are you sure you have the correct username and password?</li><li>Are you sure that you have typed the correct database hostname?</li><li>Are you sure that the database server is running?</li></ul>For more help, see the <a href="http://drupal.org/node/258">Installation and upgrading handbook</a>. If you are unsure what these terms mean you should probably contact your hosting provider.', array('%error' => mysql_error())), 'error');
return FALSE;
}
// Test selecting the database.
if (!mysql_select_db(substr($url['path'], 1))) {
drupal_set_message(st('Failed to select your database on your MySQL database server, which means the connection username and password are valid, but there is a problem accessing your data. MySQL reports the following message: %error.<ul><li>Are you sure you have the correct database name?</li><li>Are you sure the database exists?</li><li>Are you sure the username has permission to access the database?</li></ul>For more help, see the <a href="http://drupal.org/node/258">Installation and upgrading handbook</a>. If you are unsure what these terms mean you should probably contact your hosting provider.', array('%error' => mysql_error())), 'error');
return FALSE;
}
$success = array('CONNECT');
// Test CREATE.
$query = 'CREATE TABLE drupal_install_test (id int NULL)';
$result = mysql_query($query);
if ($error = mysql_error()) {
drupal_set_message(st('Failed to create a test table on your MySQL database server with the command %query. MySQL reports the following message: %error.<ul><li>Are you sure the configured username has the necessary MySQL permissions to create tables in the database?</li></ul>For more help, see the <a href="http://drupal.org/node/258">Installation and upgrading handbook</a>. If you are unsure what these terms mean you should probably contact your hosting provider.', array('%query' => $query, '%error' => $error)), 'error');
return FALSE;
}
$err = FALSE;
$success[] = 'SELECT';
$success[] = 'CREATE';
// Test INSERT.
$query = 'INSERT INTO drupal_install_test (id) VALUES (1)';
$result = mysql_query($query);
if ($error = mysql_error()) {
drupal_set_message(st('Failed to insert a value into a test table on your MySQL database server. We tried inserting a value with the command %query and MySQL reported the following error: %error.', array('%query' => $query, '%error' => $error)), 'error');
$err = TRUE;
}
else {
$success[] = 'INSERT';
}
// Test UPDATE.
$query = 'UPDATE drupal_install_test SET id = 2';
$result = mysql_query($query);
if ($error = mysql_error()) {
drupal_set_message(st('Failed to update a value in a test table on your MySQL database server. We tried updating a value with the command %query and MySQL reported the following error: %error.', array('%query' => $query, '%error' => $error)), 'error');
$err = TRUE;
}
else {
$success[] = 'UPDATE';
}
// Test DELETE.
$query = 'DELETE FROM drupal_install_test';
$result = mysql_query($query);
if ($error = mysql_error()) {
drupal_set_message(st('Failed to delete a value from a test table on your MySQL database server. We tried deleting a value with the command %query and MySQL reported the following error: %error.', array('%query' => $query, '%error' => $error)), 'error');
$err = TRUE;
}
else {
$success[] = 'DELETE';
}
// Test DROP.
$query = 'DROP TABLE drupal_install_test';
$result = mysql_query($query);
if ($error = mysql_error()) {
drupal_set_message(st('Failed to drop a test table from your MySQL database server. We tried dropping a table with the command %query and MySQL reported the following error %error.', array('%query' => $query, '%error' => $error)), 'error');
$err = TRUE;
}
else {
$success[] = 'DROP';
}
if ($err) {
return FALSE;
}
mysql_close($connection);
return TRUE;
}
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