Why displays krakozyabry?

Question

PHP

I use the code in PHP from under Windows 10

<?php
$data = 'help';
exec(escapeshellcmd($data), $output, $return);
echo implode("\n", $output)."\nReturn Code: $return";
?>

and it displays in the browser:

Why is this happening ??

Answer 1

If you use a PHP 5.6 server and higher, then you need to send an http header to the browser, in what encoding the script will give data, regardless of what encoding the script file itself is in, and even if you normally give the HTML structure of the document.

//установка кодировки вывода
  header('Content-Type: text/html; charset=utf-8');

If you do not know what encoding the data will be in, then you need to identify the encoding and enter it in the header(): --------------------------- - I selected the encoding for the header by typing, since mb_detect_encoding () did not display an explicit answer. I ended up with a CP866:

header('Content-Type: text/html; charset=CP866');
$data = 'help';
exec(escapeshellcmd($data), $output, $return);
echo implode("<br>", $output)."<br>Return Code: ".$return;

Answer 2

and if so...

echo  iconv('UTF-8', 'windows-1251//TRANSLIT', implode("\n", $output))."\nReturn Code: $return";