Creating a select query that fetches records according to multiple variables

[Preowmobe]

I need to create a select query which fetches records according to multiple variableslike:\[code\]<?PHP@$task=$_REQUEST['task'];@$Country=$_REQUEST['Country'];@$City =$_REQUEST['City'];@$MosqName =$_REQUEST['txtMsqName'];@$PostCode =$_REQUEST['txtPostalCode'];$sql_serch="SELECT Country="."'".$Country."'", " City="."'".$City."'"." FROM job_mosqu";?>\[/code\]It is not working.