/PHP/Cannot modify header information - headers already sent by

Cannot modify header information - headers already sent by

Solution:

$msg_email = 'Email enviado com sucesso!';
header('Location: ../login.php?msg_email=' . $msg_email);
$mail->send();

Error - Cannot modify header information - headers already sent by ... :
$mail->send();
$msg_email = 'Email enviado com sucesso!';
header('Location: ../login.php?msg_email=' . $msg_email);

Warning: Cannot modify header information - headers already sent by

In WordPress, check for a PHP version update, if you are losing the latest PHP version, revert back to an old PHP version, upgrade you WordPress version to the latest, then update again to the latest PHP verion.

Similar codes

0 vote312 views2 answers
A php session was created by a session_start()
PHP
0 vote324 views1 answer
Laravel blade check if yielded content exists
PHP Laravel
3 votes341 views1 answer
Start server symfony command
PHP
1 vote355 views1 answer
Laravel carbon time format AM PM
PHP Laravel
1 vote338 views1 answer
Wordpress is_archive
PHP Wordpress
0 vote307 views1 answer
Php call method from another class
PHP
0 vote352 views1 answer
Laravel Facades\DB update
PHP Laravel
0 vote359 views1 answer
Store as real file name laravel uplaod
PHP Laravel
2 votes341 views1 answer
Php beginner project ideas
PHP
1 vote323 views1 answer
Notice: Trying to access array offset on value of type int in /var/www/pdam/modules/phpexcel/PHPExcel/Cell/DefaultValueBinder.php on line 82
PHP