Writing a two-step filter plugin

  • Stephen Yeargin

    (@yearginsm)


    16 years, 11 months ago

    I am attempting to write a filter that extracts part of the the_content and uses it in another function to return a formated string (a link).

    In short, every time a user puts {{id:999}} in the post body (where 999 is any integer), I want it to return a formated link created by another function ( tnk_contact_link() ).

    Here is my non-working example:

    tnk_contact_filter($text);
{

    $pattern = '\{id\:[0-9]+\}';
    $stat = preg_match_all($patern, $text, $hit);

    foreach($hit as $contact)
    {
        $id = str_replace(array('{{id:', '}}'), '', $contact);
        $replacement = tnk_contact_link($id);
        $filtered = str_replace($contact, $replacement, $filtered);
    }
    return $filtered;

}

add_filter('the_content', 'tnk_contact_link');

    Right now it causes the post to disappear because it is not doing the find/replace inline.

    All I really need is a plugin that does something similar to look at, and I think I can figure it out from there.

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  • Thread Starter Stephen Yeargin

    (@yearginsm)

    16 years, 11 months ago

    Here is the version that eventually took shape. It replaces against a lookup for {c:999}. I’m posting it here for anyone who might come across it.

    function tnk_contact_filter($text)
{
    preg_match_all('/\{c:([0-9]+)\}/', $text, $brother);

    foreach ($brother[1] as $id)
    {
        $find[] = "/\{c:($id)\}/";
        $replace[] = tnk_contact_link($id);
    }

    if (!empty($id))
    {
        $text = preg_replace($find, $replace, $text);
    }

    return $text;
}
Viewing 1 replies (of 1 total)
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