I'm currently running PhpMyAdmin 4.0.10 (the latest version supporting PHP 4.2.X) on my Amazon EC2 connecting to a MySQL database on RDS. Everything works perfectly fine except actions that return a mysql error message.

Whether I perform "any" kind of action that will return a mysql error, Phpmyadmin will hang with the yellow "Loading" box forever without displaying anything. For example, if I perform the following command in MySQL CLI :

select * from 123;

It instantly returns the following error :

ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '123' at line 1

which is completely normal because table 123 doesn't exist.

However, if I execute the exact same command in the "SQL" box in Phpmyadmin, after I click "Go" it'll display "Loading" and stops there forever.

Has anyone ever encountered this kind of issue with Phpmyadmin? Is this a bug or I have something wrong with my config.inc.php? Any help would be much appreciated.

I also noticed these error messages in my apache error logs :

/opt/apache/bin/httpd: symbol lookup error: /opt/php/lib/php/extensions/no-debug-non-zts-20060613/iconv.so: undefined symbol: libiconv_open
/opt/apache/bin/httpd: symbol lookup error: /opt/php/lib/php/extensions/no-debug-non-zts-20060613/iconv.so: undefined symbol: libiconv_open
/opt/apache/bin/httpd: symbol lookup error: /opt/php/lib/php/extensions/no-debug-non-zts-20060613/iconv.so: undefined symbol: libiconv_open

Below are my config.inc.php settings :

<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 * phpMyAdmin sample configuration, you can use it as base for
 * manual configuration. For easier setup you can use setup/
 *
 * All directives are explained in documentation in the doc/ folder
 * or at <http://docs.phpmyadmin.net/>.
 *
 * @package PhpMyAdmin
 */

/*
 * This is needed for cookie based authentication to encrypt password in
 * cookie
 */
$cfg['blowfish_secret'] = 'something_random'; /* YOU MUST FILL IN THIS FOR COOKIE AUTH! */

/*
 * Servers configuration
 */
$i = 0;

/*
 * First server
 */
$i++;
/* Authentication type */
$cfg['Servers'][$i]['auth_type'] = 'cookie';
/* Server parameters */
$cfg['Servers'][$i]['host'] = '*.rds.amazonaws.com';
$cfg['Servers'][$i]['connect_type'] = 'tcp';
$cfg['Servers'][$i]['compress'] = true;
/* Select mysql if your server does not have mysqli */
$cfg['Servers'][$i]['extension'] = 'mysqli';
$cfg['Servers'][$i]['AllowNoPassword'] = false;
$cfg['LoginCookieValidity'] = '3600';
/*
 * phpMyAdmin configuration storage settings.
 */

/* User used to manipulate with storage */
$cfg['Servers'][$i]['controlhost'] = '*.rds.amazonaws.com';
$cfg['Servers'][$i]['controluser'] = 'pma';
$cfg['Servers'][$i]['controlpass'] = 'password';

/* Storage database and tables */
$cfg['Servers'][$i]['pmadb'] = 'phpmyadmin';
$cfg['Servers'][$i]['bookmarktable'] = 'pma__bookmark';
$cfg['Servers'][$i]['relation'] = 'pma__relation';
$cfg['Servers'][$i]['table_info'] = 'pma__table_info';
$cfg['Servers'][$i]['table_coords'] = 'pma__table_coords';
$cfg['Servers'][$i]['pdf_pages'] = 'pma__pdf_pages';
$cfg['Servers'][$i]['column_info'] = 'pma__column_info';
$cfg['Servers'][$i]['history'] = 'pma__history';
$cfg['Servers'][$i]['table_uiprefs'] = 'pma__table_uiprefs';
$cfg['Servers'][$i]['tracking'] = 'pma__tracking';
$cfg['Servers'][$i]['designer_coords'] = 'pma__designer_coords';
$cfg['Servers'][$i]['userconfig'] = 'pma__userconfig';
$cfg['Servers'][$i]['recent'] = 'pma__recent';
/* Contrib / Swekey authentication */
// $cfg['Servers'][$i]['auth_swekey_config'] = '/etc/swekey-pma.conf';

/*
 * End of servers configuration
 */

/*
 * Directories for saving/loading files from server
 */
$cfg['UploadDir'] = '';
$cfg['SaveDir'] = '';

/**
 * Defines whether a user should be displayed a "show all (records)"
 * button in browse mode or not.
 * default = false
 */
//$cfg['ShowAll'] = true;

/**
 * Number of rows displayed when browsing a result set. If the result
 * set contains more rows, "Previous" and "Next".
 * default = 30
 */
$cfg['MaxRows'] = 50;

/**
 * disallow editing of binary fields
 * valid values are:
 *   false    allow editing
 *   'blob'   allow editing except for BLOB fields
 *   'noblob' disallow editing except for BLOB fields
 *   'all'    disallow editing
 * default = blob
 */
//$cfg['ProtectBinary'] = 'false';

/**
 * Default language to use, if not browser-defined or user-defined
 * (you find all languages in the locale folder)
 * uncomment the desired line:
 * default = 'en'
 */
//$cfg['DefaultLang'] = 'en';
//$cfg['DefaultLang'] = 'de';

/**
 * default display direction (horizontal|vertical|horizontalflipped)
 */
//$cfg['DefaultDisplay'] = 'vertical';


/**
 * How many columns should be used for table display of a database?
 * (a value larger than 1 results in some information being hidden)
 * default = 1
 */
//$cfg['PropertiesNumColumns'] = 2;

/**
 * Set to true if you want DB-based query history.If false, this utilizes
 * JS-routines to display query history (lost by window close)
 *
 * This requires configuration storage enabled, see above.
 * default = false
 */
//$cfg['QueryHistoryDB'] = true;

/**
 * When using DB-based query history, how many entries should be kept?
 *
 * default = 25
 */
//$cfg['QueryHistoryMax'] = 100;

/*
 * You can find more configuration options in the documentation
 * in the doc/ folder or at <http://docs.phpmyadmin.net/>.
 */
?>