Extract the_excerpt from the_content

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I’m trying to create a filter to display only the text of a the_content without the images. But not working, I tried it but it does not display anything, it is blank 

add_filter('the_content', 'importgaleria');

function importgaleria($content) {
    global $post;
    if (is_singular()) {
        $content=$post->post_excerpt;
        return $content;
    } else {
        return $content;
    }
}
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2 comments

  1. I managed to solve with this code

    add_filter('the_content', 'importgaleria');

function importgaleria($content) {
       if (is_singular()) {
        $content =  wp_trim_words(get_the_content(), 20, '' ) ;
        return $content;

    } else {
        return $content;
     };

};

  2. You can try below code

    add_filter('the_content', 'importgaleria');

function importgaleria($content) {
    global $post;
    if (is_singular()) {
        $content=$post->post_excerpt;
        $content = preg_replace('/(<)([img])(w+)([^>]*>)/', '', $content);
        $content = str_replace(']]>', ']]&gt;', $content);
        return $content;
    } else {
        return $content;
     };

};