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header location not working in my php code

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面向向阳花
面向向阳花 2020-11-28 13:17

i have this code,why my header location not working? its a form of updating and editing and deleting some pages in my control panel...and i have an index.php file in the sam

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  • 傲寒
    2020-11-28 13:51 
    ob_start();

    should be added in the line 1 itself. like in below example

    <?php
ob_start(); // needs to be added here
?>
<!DOCTYPE html>
<html lang="en">
// your code goes here
</html>
<?php
if(isset($_POST['submit']))
{ 
//code to save data in db goes here
}
header('location:index.php?msg=sav'); 
?>

    adding it below html also doesnt work. like below

    <!DOCTYPE html>
<html lang="en">
// your code goes here
</html>
<?php
ob_start(); // it doesnt work even if you add here
if(isset($_POST['submit']))
{ 
//code to save data in db goes here
}
header('location:index.php?msg=sav'); 
?>
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  • 轮回少年
    2020-11-28 13:56

    It should be Location not location:

    header('Location: index.php');
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  • 有刺的猬
    2020-11-28 13:57

    Try adding ob_start(); at the top of the code i.e. before the include statement.

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  • 逝去的感伤
    2020-11-28 13:57

    The function ob_start() will turn output buffering on. While output buffering is active no output is sent from the script (other than headers), instead the output is stored in an internal buffer. So browser will not receive any output and the header will work.Also we should make sure that header() is used on the top of the code.

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  • 面向向阳花
    2020-11-28 13:59

    I use following code and it works fine for me.

    if(!isset($_SESSION['user'])) {
       ob_start();
       header("Location: https://sitename.com/login.php");
       exit();
} else { 

// my further code 

}
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  • 暖寄归人
    2020-11-28 14:02

    I had same application on my localhost and on a shared server. On my localhost the redirects worked fine while on this shared server didn't. I checked the phpinfo and I saw what caused this:

    While on my localhost I had this:

    So I asked the system admin to increase that value and after he did that, everything worked fine.

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