Your PHP installation does not support PostgreSQL

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PHP

Hello, I need your help everyone.

I'm using phppgadmin for my postgres. I installed wamp for my xp os.
in my php.ine I have:

extension_dir = "F:/wamp/bin/php/php5.3.0/ext/"

// php_pgsql.dll is located in this directory F:/wamp/bin/php/php5.3.0/ext/

and I removed the semicolon

;extension=php_pgsql.dll

to

extension=php_pgsql.dll

and in my config.inc.php I have this code:

$conf['servers'][0]['desc'] = 'PostgreSQL';
    $conf['servers'][0]['host'] = 'localhost';
    $conf['servers'][0]['port'] = 5432;
    $conf['servers'][0]['sslmode'] = 'allow';
    $conf['servers'][0]['defaultdb'] = 'template1';
    $conf['servers'][0]['pg_dump_path'] = 'F:\\Program Files\\PostgresPlus\\8.4SS\\bin\\pg_dump.exe';
    $conf['servers'][0]['pg_dumpall_path'] = 'F:\\Program Files\\PostgresPlus\\8.4SS\\bin\\pg_dumpall.exe';
    $conf['servers'][0]['slony_support'] = false;
    $conf['servers'][0]['slony_sql'] = 'F:\\Program Files\\PostgresPlus\\8.4SS\\share';

Still I get an Error Message: "Your PHP installation does not support PostgreSQL"

Help me please.