$conf, $runtime; function_exists('chdir') AND chdir(APP_PATH); $r = 'mysql' == $conf['cache']['type'] ? website_set('runtime', $runtime) : cache_set('runtime', $runtime); } function runtime_truncate() { global $conf; 'mysql' == $conf['cache']['type'] ? website_set('runtime', '') : cache_delete('runtime'); } register_shutdown_function('runtime_save'); ?>http - Header already sent, error shows core files|Programmer puzzle solving

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    http - Header already sent, error shows core files

    matteradmin7PV0评论

    I am having an error like this :

    Warning: Cannot modify header information - headers already sent by (output started at /home/zk2ba8xn663w/public_html/wp-includes/formatting.php:5100) in /home/zk2ba8xn663w/public_html/wp-includes/pluggable.php on line 1219

    How should i approach to solve the problem as error shows the WordPress core files?

    This is the line there : 

    if ( !$is_IIS && PHP_SAPI != 'cgi-fcgi' )
    status_header($status); // This causes problems on IIS and some FastCGI setups

header("Location: $location", true, $status);

return true;

    can if i use $location in my theme can it cause any problem? please help

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