I'm trying to write a Wordpress Plug-in but can't seem to figure out how you would modify how a URL gets handled, so for example: any requests made for:
<url>/?myplugin=<pageID>
will get handled by a function in my plug-in. I'm sure this is a very simple to do, but I'm pretty new to working with Wordpress and couldn't find it in the documentation.
In order to handle just a specific URL use the code below:
add_action('parse_request', 'my_custom_url_handler');
function my_custom_url_handler() {
if(isset($_GET['myplugin']) && $_SERVER["REQUEST_URI"] == '/custom_url') {
echo "<h1>TEST</h1>";
exit();
}
}
add_action('parse_request', 'my_custom_url_handler');
function my_custom_url_handler() {
if( isset($_GET['myplugin']) ) {
// do something
exit();
}
}
That should set you on the right direction. parse_request happens before WordPress runs any of the complicated WordPress queries used to get the posts for the current URL.
Related
I'm coding a WordPress website in which I want all the external links to be "no-follow" by default.
It is quite long to go and edit each single link to add the "no-follow", is there a way to code it once for all?
Thank you
IMHO, the best way to do so is using a custom filter. Being generated dinamically by PHP, you can edit links on post and pages server-side even before a user visit them: WordPress used to add rel="nofollow" to each link by default in the past, but I see it doesn’t happen anymore. Then, I found a solution by Debjit Saha you may try on functions.php.
add_filter('the_content', 'my_nofollow');
add_filter('the_excerpt', 'my_nofollow');
function my_nofollow($content) {
return preg_replace_callback('/<a[^>]+/', 'my_nofollow_callback', $content);
}
function my_nofollow_callback($matches) {
$link = $matches[0];
$site_link = get_bloginfo('url');
if (strpos($link, 'rel') === false) {
$link = preg_replace("%(href=\S(?!$site_link))%i", 'rel="nofollow" $1', $link);
} elseif (preg_match("%href=\S(?!$site_link)%i", $link)) {
$link = preg_replace('/rel=\S(?!nofollow)\S*/i', 'rel="nofollow"', $link);
}
return $link;
}
Please, notice that some plugins could break this code and I’ve never tried this on newer WordPress versions.
One way you can do it is using JavaScript:
var hrefToCheck = "mysite.com" // change this string
noFollowExternalLinks(hrefToCheck); // call to run the function below
function noFollowExternalLinks(siteHref) {
document.querySelectorAll('a').forEach(function(link) {
if (!link.href.includes(siteHref)) {
link.setAttribute("rel", "nofollow");
}
})
}
So, you can change hrefToCheck variable to a piece of your site URL that will be checked inside each link inside the page.
The function will loop to check every link in the page and apply rel="nofollow" to all external links (that don't match the text in the variable).
I want to give only two page (/home, /inbox) access to my user with role "Vendor", if user tries to access other pages than it will automatically redirect to "/inbox" page, I put the below code to achieve the functionality but after adding this to function.php, site again n again redirect and finally dies with message "Page isn't properly redirected". please suggest what is wrong with my tried code or any other solution.
function vendor_redirect() {
global $post;
if(current_user_can('Vendor') && !in_array($post->slug,array("home","inbox"))) {
wp_safe_redirect('/inbox');
}
}
add_action('template_redirect', 'vendor_redirect');
The main issue the way I tried to get the page slug, the correct way to get the slug is "$post->post_name". also I put exit after wp_safe_redirect as well because codex suggest that:
function vendor_redirect() {
global $post;
if(current_user_can('Vendor') && !in_array($post->post_name,array("home","inbox"))) {
wp_safe_redirect(get_permalink(get_page_by_path( 'inbox' )));
exit;
}
}
add_action('template_redirect', 'vendor_redirect');
I am working on a simple wordpress plugin to manage events.
I have a link in my layout where I want to link to a event-page which is located in my plugin folder.
I dont want the long url like localhost/project/wp-content/plugins/event-manager/event-page.php?eventid=1.
I want it to be like localhost/project/event/1. Where the 1 is referred to the eventid get.
I've searched a lot and still I cant find the way to get it worked.
My code is as follow:
register_activation_hook(__FILE__, 'link_rewrite');
function link_rewrite() {
add_rewrite_rule('^event/^[0-9]', plugins_url('event-manager') . '/event-page.php? eventid=$matches[1]', 'top');
flush_rewrite_rules(false);
}
add_filter('query_vars', 'link_rewrite_query_vars');
function link_rewrite_query_vars($query_vars) {
$query_vars[] = 'eventid';
return $query_vars;
}
Hope someone have a solution.
I use wordpress and I have the following question,
I use the URL:
- www.mysite.com/page
- www.mysite.com/cat/page
- www.mysite.com/custompostype/post
The value of permalinks is %category%/%postname%, everything works fine except now I have to use two languages and I want to configure as follows:
www.mysite.com/EN/page
www.mysite.com/ES/cat/page
www.mysite.com/BR/custompostype/post
I want to change the structure of wordpress urls where the first rule is the language and to take it as variable value. Similar to /%lang%/%category%/%postname%/
i used the wp_rewrite and have had no success, any idea?
for now I just found a solution to my problem, which I handled sessions
<?php function init_sessions() {
if (!session_id()) {
session_start();
} } add_action('init', 'init_sessions'); ?> <?php function detecta_idioma() { if($_SESSION["IDIOMA"]["actual"]=="") {
$_SESSION["IDIOMA"]["actual"]="ES";
$_SESSION["IDIOMA"]["abreviatura"]="";
$_SESSION["IDIOMA"]["nombre"]="Español";
$_SESSION["IDIOMA"]["tag"]="ES"; } if($_GET["action"]=="idioma" &&
$_GET["lang"]) { unset($_SESSION["IDIOMA"]);
switch($_GET["lang"]) { case "EN":
$_SESSION["IDIOMA"]["actual"]="EN";
$_SESSION["IDIOMA"]["abreviatura"]="_en";
$_SESSION["IDIOMA"]["nombre"]="Ingles";
$_SESSION["IDIOMA"]["tag"]="EN"; break; case "ES": default:
$_SESSION["IDIOMA"]["actual"]="ES";
$_SESSION["IDIOMA"]["abreviatura"]="";
$_SESSION["IDIOMA"]["nombre"]="Español";
$_SESSION["IDIOMA"]["tag"]="ES"; break;
} } $IDIOMA=array("actual"=>$_SESSION["IDIOMA"]["actual"],"ab"=>$_SESSION["IDIOMA"]["abreviatura"],"nombre"=>$_SESSION["IDIOMA"]["nombre"],"tag"=>$_SESSION["IDIOMA"]["tag"]);
global $wp_rewrite;
$wp_rewrite->set_permalink_structure($_SESSION["IDIOMA"]["tag"].'/%category%/%postname%');
return $IDIOMA; } add_action('init', 'detecta_idioma'); ?>
works well on the route entries, eg www.misitio.com/en/post-demo, t not working with pages or categories or taxonomies, eg: www.misite.com/es/category/, www.site.com/es/page/subpage or www.site.com/br/taxonomy <----- Dont work, shows error 404 page
I can not use the plugin qTranslate and CMS plugin multulengual either they do not work well with the use of plugins Advanced custom fields and custom post types UI.
Thanks
I have a custom page template with a form in page-report.php.
I do validation on it, so I need the action to lead to the same form, but I need to redirect to a different page on successful validation.
wp_redirect() is not working, because is spitting out the header() function after the output was started already.
if($_POST['report'])
{
if($validator->ValidateForm())
{
wp_redirect('http://thankyou') // redirect
}
}
I cannot use ob_start() and ob_flush() because the header is not included in this page template.
I tried to put a function in functions.php :
add_action('get_header','redirect_to');
function redirect_to($page){
if($page)
{
wp_redirect('http://www.google.com');
}
}
But that works only if I don't have the conditional if().
If I use it, the wp_redirect() is being spat out after the output was started.
What is my best approach to do this?
Thanks.
I think you have to use the save_post hook:
do_action('save_post', 'custom_add_save');
function custom_add_save($postID){
// called after a post or page is saved
if($_POST['report']) {
if($validator->ValidateForm())
{
wp_redirect('http://thankyou') // redirect
}
}
Also you could just try using a plugin instead of your own code...Gravity Forms and Contact form 7 both work well.
}
I got it...
Since I was doing everything from inside an admin page, the header was fired up before the wp_redirect() as it was explained in the question.
So I ended up making a new function at the top:
add_action('admin_init','redirect_to');
function redirect_to()
{
if ( isset($_REQUEST['action']) && 'adduser' == $_REQUEST['action'] ) {
wp_redirect($redirect);
die();
}
}
}
That is making sure that the redirect_to() function will be fired up before the header (on admin_init). Maybe not the most elegant solution, but it works perfect.
So in the case anybody is looking for "Redirect after post" in wordpress, this is how you do it:
wp_redirect($_SERVER['REQUEST_URI']);
Try this
if( $_POST['report'] ) {
if( $validator->ValidateForm() ) {
header( 'Location: http://thankyou' ) ;
}
}