Question

I have this code for index.php:

<!DOCTYPE html>
<html>

<?PHP 

if(isset($_GET['page'])){

    require dirname(__FILE__).'/modules/'.$_GET['page'].'/main.php';

} else {

    require dirname(__FILE__).'/modules/home.php';

}

?>
</html>

main.php:

$title = 'title test';
$description = 'desc test';
$keyword = 'keys test';

echo _is_header_();

header function:

function _is_header_(){

     require ABSPATH.'/templates/'.TEMPLATENAME.'/header.php';

}

In header.php I have meta html tag for title and echo $title for show title of page. but I see this error :

<b>Notice</b>:  Undefined variable: title in

how do fix this error?!

NOTE: when I replace require ABSPATH.'/templates/'.TEMPLATENAME.'/header.php'; with echo _is_header_(); my code worked true and show my title.

Answer 1

In your script

ABSPATH.'/templates/'.TEMPLATENAME.'/header.php';

write a

global $title;

just befor the line you use it first time.

Answer 2

如果您的文件＆＃34; header.php＆＃34;操纵变量＆＃34; $ title＆＃34;或者她不存在，那么你先打印她，然后才能包含这个文件。

PHP Undefined variable in echo function

2 个答案: