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Injecting class in content

  • Hello,
    I am trying to inject lass in my content and it’s working fine, but it’s not adding class in the custom field content. How do I do that?

    This code injects class into my content, not in acf content.

    //**Adding UL Li**//
    add_filter('the_content', 'ja_ul_class');
    function ja_ul_class($content)
        $string = '<ul';
        $replace = '<ul class="detail-list"';
        $content = str_replace( $string, $replace, $content );
        return $content;
  • The ACF fields are outsite the_content() value. you should try using acf-format_value.

    There is a great example here:

  • If you want to use the_content filter you need to use that acf_the_content filter for WYSIWYG fields

    add_filter('the_content', 'ja_ul_class');
    add_filter('acf_the_content', 'ja_ul_class');
  • I added this and it’s working fine. Is this way right or wrong?

    add_filter('acf/format_value', 'acf_ul_class');

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