WP_redirect not working (header already sent in pluggable.php)

Question

I want to use this code in a template file:

if ( wp_is_mobile() ) {
wp_redirect( "/shop-mobile", $status );
}

but it says: header already sent by /filewithcode in .../wp_includes/pluggable.php on line 1196

I tried to clean the pluggable document from spaces.. what else could be the issue here? Thank you

I know this was asked 6 years ago - but just stumbled across this. You should probably be using responsive web design rather than /shop-mobile — Micheal J. Roberts, Jul 13 '21 at 13:47

score 5 · Answer 1 · edited May 23 '17 at 12:17

5

"To fix the "headers already sent" issue, you need to move all of your form processing from the bottom of the page to the top of the page. If you need to call wp_redirect() you must make that call before you print anything - HTML or anything else - to the page."

reference: https://wordpress.stackexchange.com/questions/81566/wp-redirect-headers-already-sent-after-front-end-submission-form

you can read this for more explanation of this problem

How to fix "Headers already sent" error in PHP

edited May 23 '17 at 12:17

Community

1
1

answered Jul 12 '15 at 10:19

Abdallah Alsamman

1,623
14
22

thanks! super straightforward – tiadotdev Nov 25 '22 at 17:08

score 0 · Answer 2 · edited May 23 '17 at 12:17

Ensure that the code above the wp_redirect function have not already sent the header information to the server.

Header information will be sent to the server in some of the following scenarios:

print, echo
Space before <?php or space after ?>

Check if the headers are being already sent using:

if (headers_sent()) {
     die("Redirect failed. Please click on this link: <a href=...>");
}
else{
     exit(header("Location:/test.php"));
}

Refer the below link for further guidance.How to fix "Headers already sent" error in PHP

WP_redirect not working (header already sent in pluggable.php)

2 Answers2