mysql - include and header function not working together in single php file -


i trying include config.php file database after completing task , redirect other page shows error message.

"warning: cannot modify header information - headers sent (output started @ /home/prasan/public_html/theyplay.in/texttospeech/config.php:16) in /home/prasan/public_html/theyplay.in/texttospeech/input.php on line 14"

<?php include("config.php");   try {  $mi = $_post['main']; $i = $_post['item'];  $dbo->query("insert ld (mainitem, subitem, item,fav)values ('$mi','$i',0)") ;  } catch (exception $e) { echo 'caught exception: ',  $e->getmessage(), "\n"; } header("location: index.php"); ?>

edit: config.php

<?php $dbhost_name = "localhost"; $database    = "rrr"; $username    = "rrr"; $password    = "rrr"; try {     $dbo = new pdo('mysql:host=' . $dbhost_name . ';dbname=' . $database, $username, $password); } catch (pdoexception $e) {     print "error!: " . $e->getmessage() . "<br/>";     die(); } ?>

header redirection place inside try. because have echo before header function

<?php include("config.php");   try {      $mi = $_post['main'];     $i = $_post['item'];      $dbo->query("insert ld (mainitem, subitem, item,fav)values ('$mi','$i',0)") ;      header("location: index.php");  } catch (exception $e) {     echo 'caught exception: ',  $e->getmessage(), "\n"; }  ?>

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