write a file in php -


this function fetches records db. want write them file. please me. 

function selectcsv($classname)     {         echo $sql = "select * tblstuden classname = $classname;";          $obj_db = new db();         $obj_db->query($sql);          while($row = $obj_db->rsset()){         $this->_id($row[id]);         $this->_studentname($row[studentname]);         $this->_rollnumber($row[rollnumber]);         $this->_classname($row[classname]);          $out = $out . $row[studentname] . " , ". $row[rollnumber] . "\n";         }          $obj_db->db_close();

the above portion running

$myfile = "write.txt"; $fh = fopen($myfile, 'w') or die("can't open file"); $stringdata = "write::"; fwrite($fh, $stringdata); $stringdata = $_post[read]; fwrite($fh, $stringdata); fclose($fh);

you never write $out data file.

instead of:

$stringdata = "write::"; fwrite($fh, $stringdata); $stringdata = $_post[read]; fwrite($fh, $stringdata);

you should:

fwrite($fh, $out);

you should try read , understand php manual page fwrite.


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