Comparaison de date

if (isset($_GET["op2"]))
        {
          $query="SELECT * FROM $table WHERE id IS NOT NULL";
		       if (isset($_GET["noms_appli"]))
          {
			  $noms_appli = $_GET["noms_appli"];
              $query.=" AND noms_appli LIKE '$noms_appli%'";
          }
         
          $query.=" ORDER BY noms_appli";
		  
          $res=mysql_query($query) or die ("erreur");

			
          while($val = mysql_fetch_array($res))
          {		
              $id = $val['id'];
			  $noms_appli = $val['noms_appli'];
              $remarque_tpr = $val['remarque_tpr'];
              $decision_cocsa = $val['decision_cocsa'];
			  $commentaire = $val['commentaire'];
			  $date_cocsa = $val['date_cocsa'];
			  $entite = $val['entite'];
			  $date_liv_prev = $val['date_liv_prev'];
			  $date_liv = $val['date_liv'];
			  $date_valid = $val['date_valid'];
          
	
		  
		  $datequery="select STR_TO_DATE('date_cocsa','%d/%m/%Y')";
		  $resdate=mysql_query($datequery) or die ("erreur");
		  

		  $jourquery="select CURDATE()";
		  $resjour=mysql_query($jourquery) or die ("erreur");
		
		  if ($resdate < $resjour)
{echo "date passée";}
else
{echo "date pas encore passée";}

		  }}

if ($date=mysql_query("SELECT STR_TO_DATE( date_cocsa, '%d/%m/%Y' ) FROM tpr_appli WHERE noms_appli = '$noms_appli'") < $jour=mysql_query("SELECT CURDATE()"))
{echo "date passée";}
else
{echo "date pas encore passée";}