insert into table using array(for)

actually i want to insert for example :

"insert in $table_name1 f$ield_name1, $field_name2, $field_name3 values $data1, $data2, $data3";

table & field variable i get from select statement form database.
and variable data i get from $_Request from previous page

all this variable, i also use array(for statement).

2. $fields = array($field1,$ field2,$field3) ;
$data = array($data1,$d ata2,$data3);

how i can use array(for statement) in this array ?

can u give me sample code..