I am trying to filter my post title for a specific page and when a form is submitted on that page , for this I am trying to filter my title . Here is the code

function filter_title_after() {

   $current_page_id = get_the_ID();
   if($current_page_id == 58 && !empty($_POST)){
       $title = "Congratulation";
   } else {
       $title = the_title();

    return $title;
add_filter( 'the_title', 'filter_title_after'); 

After adding this filter , I am getting an error ""Maximum function nesting level of '100' reached, aborting!

I have already looked several stackexchange question , but none of the came to any help

wp_insert_posts Fatal error: Maximum function nesting level of '100' reached, aborting! Problem:Save Several Duplicate posts in The Database and then Error nesting level of '100' reached


the_title() calls your function again. If you want to avoid that, remove the callback inside of your function:

function filter_title_after() {
    remove_filter( current_filter(), __FUNCTION__ );
    // the rest of your code.

But you shouldn’t call the_title() in your function at all: it prints the title – this is not what you want – and you get the original title and ID already as an argument from WordPress. Use it.

Also, testing for POST requests should be done by checking $_SERVER[ 'REQUEST_METHOD' ].

function filter_title_after( $title, $post_id ) {

    if ( ! is_singular() )
        return $title;

    if ( 58 !== (int) $post_id )
        return $title;

    if ( 'POST' !== $_SERVER[ 'REQUEST_METHOD' ] )
        return $title;

    return "Congratulation";

add_filter( 'the_title', 'filter_title_after', 10, 2 ); 
  • Thanks @toscho , that solves my problem and learned something new . Have a great day . – shuvroMithun Feb 20 '15 at 5:43

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