Récupérer un extrait en utilisant get_the_excerpt en dehors d'une boucle

l'a obtenuen utilisant my_excerpt($post->post_content, get_the_excerpt())et en utilisant lafonction my_excerpt() de Utilisation de wp_trim_excerptpour sortirthe_excerpt () de laboucle

got it using my_excerpt($post->post_content, get_the_excerpt()) and using the my_excerpt() function from Using wp_trim_excerpt to get the_excerpt() outside the loop

J'aitrouvé cette questionen cherchant commentfaire cela sans l'objet depublication.

Mes recherches supplémentaires ont révélé cettetechnique astucieuse:

$text = apply_filters('the_excerpt', get_post_field('post_excerpt', $post_id));

I found this question when looking how to do this without the post object.

My additional research turned up this slick technique:

$text = apply_filters('the_excerpt', get_post_field('post_excerpt', $post_id));

Commeil semble que vous avez déjà l'objet depublicationpour lequel vous avezbesoin de l'extrait,vouspouvez simplementforcer les choses àfonctionner:

 setup_postdata( $post );
$excerpt = get_the_excerpt();
 

Lafonction setup_postdata()globalisera l'objet $postet le rendra disponiblepour l'anciennefonction deboucle classique.Lorsque vous êtes dans laboucle,vous appelez the_post()et il configure les chosespour vous ...en dehors de laboucle,vous devez leforcermanuellement.

Since it seems you already have the post object you need the excerpt for, you can just force things to work:

setup_postdata( $post );
$excerpt = get_the_excerpt();

The setup_postdata() function will globalize the $post object and make it available for regular old loop function. When you're inside the loop, you call the_post() and it sets things up for you ... outside of the loop you need to force it manually.

Essayez ceci:

Créez unenouvellefonction dansfunctions.php,puis appelez-la den'importe où.

 function get_excerpt_by_id($post_id){
    $the_post = get_post($post_id); //Gets post ID
    $the_excerpt = $the_post->post_content; //Gets post_content to be used as a basis for the excerpt
    $excerpt_length = 35; //Sets excerpt length by word count
    $the_excerpt = strip_tags(strip_shortcodes($the_excerpt)); //Strips tags and images
    $words = explode(' ', $the_excerpt, $excerpt_length + 1);

    if(count($words) > $excerpt_length) :
        array_pop($words);
        array_push($words, '…');
        $the_excerpt = implode(' ', $words);
    endif;

    $the_excerpt = '<p>' . $the_excerpt . '</p>';

    return $the_excerpt;
}
 

Voici unpost décrivant le code.

Try this:

Create a new function in functions.php and then call it from wherever.

function get_excerpt_by_id($post_id){
    $the_post = get_post($post_id); //Gets post ID
    $the_excerpt = $the_post->post_content; //Gets post_content to be used as a basis for the excerpt
    $excerpt_length = 35; //Sets excerpt length by word count
    $the_excerpt = strip_tags(strip_shortcodes($the_excerpt)); //Strips tags and images
    $words = explode(' ', $the_excerpt, $excerpt_length + 1);

    if(count($words) > $excerpt_length) :
        array_pop($words);
        array_push($words, '…');
        $the_excerpt = implode(' ', $words);
    endif;

    $the_excerpt = '<p>' . $the_excerpt . '</p>';

    return $the_excerpt;
}

Here's a post describing the code.

Vouspouvezmaintenant simplement utiliser get_the_excerpt( $postID ) fonction. Depuis: WordPress 4.5.0 aintroduit leparamètre $post.

Now you can simply use the get_the_excerpt( $postID ) function. Since: WordPress 4.5.0 introduced the $post parameter.

Si vousn'avezpas l'objet depublication,voici une courtefonction comme celle de Withers.

 function get_excerpt_by_id($post_id){
    $the_post = get_post($post_id);
    $the_excerpt = $the_post->post_excerpt; 
    return $the_excerpt;
}
 

In case you don't have the post object, here's a short function like the one from Withers.

function get_excerpt_by_id($post_id){
    $the_post = get_post($post_id);
    $the_excerpt = $the_post->post_excerpt; 
    return $the_excerpt;
}

 function custom_get_excerpt ($post_id) {
    $temp=$post;
    $post=get_post ($post_id);
    setup_postdata ($post);

    $extrait=get_the_excerpt ();

    wp_reset_postdata ();
    $post=$temp;

    return $extrait;
}
 

This is for when you want to use get_the_excerpt() outside the loop:

function custom_get_excerpt($post_id) {
    $temp = $post;
    $post = get_post($post_id);
    setup_postdata($post);

    $excerpt = get_the_excerpt();

    wp_reset_postdata();
    $post = $temp;

    return $excerpt;
}

Si vous souhaitezgénérer l'extrait automatiquement àpartir du contenu sur une seule ligne,vouspouvez utiliser wp_trim_words fonctionne comme ceci:

 // 30 is the number of words ehere
$excerpt = wp_trim_words(get_post_field('post_content', $post_id), 30);
 

If you'd like to generate the excerpt automatically from the content in one line - you can use wp_trim_words function like this:

// 30 is the number of words ehere
$excerpt = wp_trim_words(get_post_field('post_content', $post_id), 30);

 $trimexcerpt = get_the_content();
$shortexcerpt = wp_trim_words( $trimexcerpt, $num_words = 18, $more = '… ' ); 
echo $shortexcerpt;
 

$trimexcerpt = get_the_content();
$shortexcerpt = wp_trim_words( $trimexcerpt, $num_words = 18, $more = '… ' ); 
echo $shortexcerpt;