Cannot modify header information , cannot redirect

Question

i have an error Cannot modify header information - headers already sent , i already check out the answer though , no space before the beginning php , and using ob_start and flush ..

its worked on my other php file (insert , edit ) , but its not working only on delete script , but actually the line i want to delete is deleted ..

this is my page to call the code

<script>
function confirmation(id){
var message = "are you sure?";
var konfirmasi = confirm(message);
if(konfirmasi == true) {
window.location="index.php?delete_truk="+ id;
}
else {

 }
 }
</script>
<?php 
        $query = "SELECT * FROM truk";
        $sql=mysql_query($query);
    ?>          
        <table class="show_data" id="truk">
            <tr>
                <td>Truk ID</td>
                <td>Tipe</td>
                <td>images</td>
                <td>Deskripsi</td>
                <td>jumlah</td>
                 <td>Delete/Edit</td>
            </tr>
            <?php 
                while($fetch=mysql_fetch_array($sql)){
            ?>
            <tr>

                <td><?php echo $fetch['trukid']; ?></td>
                <td style="width:100px;"><?php echo $fetch['tipe']; ?></td>
                <td><?php echo $fetch['images']; ?></td>
                <td><?php echo substr($fetch['deskripsi'],0,50); ?></td>
                <td><?php echo $fetch['jumlah']; ?></td>

                <td>

                <input type="image" class="icon" src="images/asset/delete.jpg" onClick="confirmation('<?php echo $fetch['trukid']; ?>') ">
                <a href="index.php?edit_truk=<?php echo $fetch['trukid']; ?>"><img class="icon" src="images/asset/edit.jpg"></a>
                </td>
            </tr>
            <?php } ?>
        </table>
        <a href="index.php?input_truk" class="button">Tambah Truk</a>

here is the code

<?php
$id = $_GET['delete_truk'];
$sql="DELETE FROM `truk` WHERE `trukid` = '$id' ";
$query = mysql_query($sql);
header('Location:index.php?truck');
?>

and it cannot redirect instead Warning: Cannot modify header information - headers already sent by (output started

thanks for your help ,, sorry for bad english

@0n35 ah sorry sir , im forgot to put the page to called the code , i already edit my post , can you look it ? thanks — user3158183, Jan 23 '14 at 01:48

score 0 · Answer 1 · answered Jan 23 '14 at 01:25

0

You cannot redirect if you start writing to the page

$id = $_GET['delete_truk'];
$sql="DELETE FROM `truk` WHERE `trukid` = '$id' ";
//echo $sql;  <-- don't echo
$query = mysql_query($sql);
header('Location:index.php?truck');

answered Jan 23 '14 at 01:25

meda

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this is asked most days, please vote to close as duplicate rather than answering – Jan 23 '14 at 01:26
Sorry I did think about looking for duplicate, but I voted – meda Jan 23 '14 at 01:29
i already delete the echo $sql; but still cannot sir – user3158183 Jan 23 '14 at 01:29
@user3158183 then get rid off `ob_start();` – meda Jan 23 '14 at 01:31
still cant , sorry im a newbie in this php things ,, actually its work on my localhost , only since it get online this problem occured , is there problem on that things ? – user3158183 Jan 23 '14 at 01:33
If you have HTML in your file, then place your code at the very Top – meda Jan 23 '14 at 01:37
@meda ah sorry sir , im forgot to put the page to called the code , i already edit my post , can you look it ? thanks – user3158183 Jan 23 '14 at 01:48
@user3158183 no the HTML inside of index.php not the script that calls it – meda Jan 23 '14 at 01:56

Cannot modify header information , cannot redirect

1 Answers1