에러내용.
Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING in /home/u559326642/public_html/installer/index.php on line 32

수정 사항을 알려 주심 고맙겠습니다.

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include_once( BaseUrl.DS."includes".DS."db_inc.php" );
if ( defined( "INSTALLED" ) )
{
    header( "location:".$site_name );
    exit( );
}
define( "IS_ENV_PRODUCTION", true );
define( "DS", DIRECTORY_SEPARATOR );
error_reporting( E_ALL | E_STRICT );
ini_set( "display_errors", !IS_ENV_PRODUCTION );
if
 (
  isset
  (
  "_POST"  <--여기가32번 라인 입니다.
    )
&&
  $_POST
  ['submit']
  ==
    "submit"
)
{

$db_host = trim( $_POST['host'] );
    $db_name = trim( $_POST['database_name'] );
    $db_pass = trim( $_POST['database_password'] );
    $db_user = trim( $_POST['database_user'] );
    $flag = 0;
    exit( "Database connection error: Please check the host name, user name and password you provided" );