Archief - PHP: Cannot modify header information - headers already sent

<?php ob_start() ?>
<?php 
// initialisatie
	$thank_you = 0;
if( $_POST['send_request'] ) { 
	if ($_POST['selectThis'] == 1) {
		header('Location: http://status.e-trust.be/phoenixng/services.cfm?id=1621438045');
		exit();
		$thank_you = 1;
	}
}

else { ?>

<form id="form" method="post" name="form" action="">

<select name="selectThis" size="1" id="selectThis">
	<option value="1">1</option>
	<option value="2">2</option>
	<option value="3">3</option>
	<option value="4">4</option>
	<option value="5">5</option>
	<option value="6">6</option>
	<option value="7">7</option>
	<option value="8">8</option>
</select>

<input type="submit" class="knop" value="Find now" /><input name="send_request" type="hidden" id="send_request" value="1" /> 
</form> 

<?php } ?>

<?php ob_flush() ?>

output_buffering = On

<?php 
// initialisatie 
    $thank_you = 0; 
if( $_POST['send_request'] ) { 
    if ($_POST['selectThis'] == 1) { 
       ?>
       Indien u niet doorgelinkt wordt, gelieve <a href="uwLink">hier</a> te klikken
       <script language="javascript">
           document.location.href = "uwLink";
       </script>
       <?php
        exit(); 
        $thank_you = 1; 
    } 
}