Can any body help Me?

I want to create an in process condition to display a single post on wordpress. for example, I want to first check the post slug, if there is a "news-" character in the first of slug (Ex: domain[dot]com/news-anything-another-text), then single.php will output what I want to display. but if there is no "news-" character in the first of slug, then single.php displays published posts which corresponds to the slug. However, if there is no "news-" character in the slug, and there are no public posts such as the slug. Then the system will do something to the error page 404

CodePudding user response：

If you want to display custom content for a not found post if the slug starts with "news", you need to redirect the user to a different page and show the content there.

Add the below code in the functions.php Make sure you have created that custom page before doing this redirect

    function rf_custom_redirect() {
    $page_slug = $_SERVER['REQUEST_URI'];
$link_array = explode('/',$page_slug);
$page = end($link_array);
    $firstword = strtok($page, "-");
if( is_404() && $firstword == "news"){
//Code you want to execute if the first word is news
wp_redirect( home_url( '/custom-page/' ) );
        exit();
        }
else
{
//Code you want to execute if the first word is not news
}
}
add_action( 'template_redirect', 'rf_custom_redirect' );

Below code is to display specific content in single.php if blog post slug starts with news.

First, You need to get the POST SLUG/URL in the single.php file(Single Blog Post template). For that, use the below code.

global $post;
$page_slug = $post->post_name;

There is a string function (strtok) in PHP which can be used to split a string into smaller strings (tokens) based on separator. In our case, the separator would be hypen(-).

We can get the first word of the page slug using the code below.

$firstword = strtok($page_slug, "-");

Then you just check if the $firstword is "news" using a simple IF condition.

if($firstword == "news")
{
//Code you want to execute if the first word is news
}
else
{
//Code you want to execute if the first word is not news
}