'wp_redirect' is not working

Question

There is an HTML form input. Here's the code:

<?php if(isset($_POST['login'])) { 
    wp_redirect("/"); 
}

<form accept-charset="UTF-8" method="post" >
    ...
    <center><input name="login" type="submit" value="вход" />
</form>

But redirect doesn't work. Install debug plugin redirects to wp, that's what it showed.

http://i.stack.imgur.com/Im4eE.png

PS:

<?php wp_redirect( 'http://www.example.com', 301 ); exit; ?>

It does not work either.

Answer 1

Just use this as per below:

ob_clean();
$url = get_home_url() . '/login';
wp_redirect($url);
exit();

Or you could use Javascript as well for redirection purpose.

<script>window.location='http://www.google.com'</script>

Answer 2

Use the follwing code:-

function app_output_buffer() {
    ob_start();
} // soi_output_buffer
add_action('init', 'app_output_buffer');

Or add ob_start() as first line of your own function which hook into 'init'

Don't forget to add

exit();

immediately after your call to

wp_redirect($url);

link:

https://tommcfarlin.com/wp_redirect-headers-already-sent/