PHP - simple condition not working -

i have weird condition php script.

$qtype = filter_input(input_get, 'qtype', filter_sanitize_number_int); if ($qtype == 1) { .. elseif ($qtype == 3) {  $prod = filter_input(input_get, 'prod', filter_sanitize_string, filter_flag_no_encode_quotes);     echo "prod = " . $prod;     if ($prod == "sihy")         $strsql = "select * dbo.table_s";     else         $strsql = "select * dbo.table_fl"; .. } echo $strsql; 

i called way:

http://localhost/new.php?qtype=3&prod="sihy" 

and returns from dbo.table_fl. when put condition != , put table_fl on top, returns from dbo.table_s -> second $strsql value setting.

what happened? doing wrong? seems if not working.

thanks in advance, :rherry

i suspect passing quotation marks.

so either change condition to

if ($prod == "\"sihy\"") 

or change url to

http://localhost/new.php?qtype=3&prod=sihy