Retreiving populated data from dropdown form

[sarbjyot]

I am able to to populate the dropdown form, but I am facing diffuclty with writing data selected by user to its repective text file. Could you please bring out some faults with following code or an easy to understand alternative.

$drpdown = array();
print '<form action="drpdwn.php" method="post">'; 
print '<select name="drpdwn[]" multiple>'; 

for($i=0;$i<$countsep;$i++)
{
  print"<option value=test.$i>$arraydiff[$i]</option>";  

}
print '<input type="submit" value="Submit">'; 
print '</form>'; 

$drpdwn=$_POST['drpdwn'];
if(is_array($drpdwn))
{
	while (list ($key, $pluscpu) = each ($drpdwn)) 
	{
   		if(strstr($pluscpu,"dsllinux"))
   		{
       			if($pluscpu=="dsllinux5"||$pluscpu=="dsllinux6"||$pluscpu=="dsllinux7"||$pluscpu=="dsllinux8"||$pluscpu=="dsllinux9"||$pluscpu=="dsllinux10"||$pluscpu=="dsllinux11"||$pluscpu=="dsllinux13"||
       			$pluscpu=="dsllinux14"||$pluscpu=="dsllinux15"||$pluscpu=="dsllinux16"||$pluscpu=="dsllinux22"||$pluscpu=="dsllinux23")
         		{
               			$server_a1=fopen("bldhost.i686","a");
               			fwrite($server_a1,"\n".$pluscpu);
              		        fclose($server_a1); 

          		        $server_a2=fopen("bldhost_pbuild.i686","a");
           			fwrite($server_a2,"/n".$pluscpu);
           			fclose($server_a2);

          		 	$server_a3=fopen("bldhost_host.i686","a");
           			fwrite($server_a3,"\n".$pluscpu);
           			fclose($server_a3);
        		}

    		else
      		{
        			$server_a4=fopen("bldhost_pbuild.i686","a");
           			fwrite($server_a4,"/n".$pluscpu);
           			fclose($server_a4);

       	  		$server_a5=fopen("bldhost.i686","a");
          			fwrite($server_a5,"\n".$pluscpu);
          			fclose($server_a5);
        	}
	  }

	  else
  		  {
    		$server_a6=fopen("bldhost.sun4","a");
		fwrite($server_a6,"/n".$pluscpu);
		fclose($server_a6);
  		  }	
}
}