Plugin uses ajax to call php function

  • markcoker

    (@markcoker)


    8 years, 5 months ago

    Hi I’m just wondering the best way to do this. External php is ‘Hacky’ (explained after code) in WordPress but works (see snippet below), I’m assuming by the nature of php i can’t call a function inside the UI file (below):

    <input type="text" placeholder="function search" onkeyup="search(this.value)">
<script>
    xmlhttp.onreadystatechange = function() {
                   if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
                       document.getElementById(\'search\').innerHTML = xmlhttp.responseText;
                   }
                var locate = \''.plugins_url( 'locate.php', __FILE__ ).'\';
                xmlhttp.open("GET", locate+"?search="+searchInput);
                xmlhttp.send();
</script>
<textarea rows="15" cols="50" id="search"></textarea>

    i have to import wp files to check for admin status/get_home_path() etc, which requires a static ‘../../../’ . This is because wp functions aren’t loaded by 2nd. Will looking Hooks, Actions and Filters solve this issue? if so could you point me to the function/s i should use. (yep, i plan i learn this in great detail as soon as i get some sleep)

    Thanks!

Viewing 2 replies - 1 through 2 (of 2 total)
  • Thread Starter markcoker

    (@markcoker)

    8 years, 5 months ago

    yeah, i think silly question sorry guys. will confirm later but i believe add_action will do this.

    i really gotta stop hacking up code < 2hrs of sleep in 2days.

    If someone could confirm as well that would be great, tips are also encouraged! 🙂

    Moderator bcworkz

    (@bcworkz)

    8 years, 5 months ago

    Close but not quite I think. AJAX is fine, but it must be done properly. The AJAX request must go through admin-ajax.php. By doing that, you need to add an action callback, so your inclination is correct, but the way to go about it is not what you imagined I think. More on proper AJAX calls:
    https://developer.wordpress.org/plugins/javascript/ajax/

    Never use relative (or absolute for that matter) references to include core files, you end up with non-portable code. By going through admin-ajax.php there is no need, it’s taken care of for you.

Viewing 2 replies - 1 through 2 (of 2 total)
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