WordPress Functions for functions.php File

Here are some of common functions in WordPress theme’s functions.php file that I would suggest you include in your functions.php file



Get Ping/Trackback Count

Here is an interesting one I used recently. This function returns the number of pings/trackbacks for a post. This can be useful if you only want to show a certain section if there are any pings/trackbacks.

<?php
/* 
Online PHP Examples with Source Code
website: http://4evertutorials.blogspot.in/
*/

function pings_count($post_id) {
    global $wpdb;
    $count = "SELECT COUNT(*) FROM $wpdb->comments WHERE (comment_type = 'pingback' OR comment_type = 'trackback') AND comment_post_ID = '$post_id'";
    return $wpdb->get_var($count);
}


?>

Plain Text Feedburner Subscriber Count

Here is the classic: get your feedburner subscriber count in plain text. Note most of these functions make use of cURL and this one requires PHP v5+ (so you can use SimpleXMLElement).

<?php
/* 
Online PHP Examples with Source Code
website: http://4evertutorials.blogspot.in/
*/

function get_subscriber_count() {
        $id = "YourFeedId";
    $url="https://feedburner.google.com/api/awareness/1.0/GetFeedData?uri=". $id;
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_URL, $url);
    $data = curl_exec($ch);
    curl_close($ch);
    $xml = new SimpleXMLElement($data);
    return $xml->feed->entry['circulation'];
}


?>

Get TinyURL

This one can be useful if you want to generate a short URL of your post for people to share.

<?php
/* 
Online PHP Examples with Source Code
website: http://4evertutorials.blogspot.in/
*/

function get_tiny_url($url) {
    if (function_exists('curl_init')) {
        $url = 'http://tinyurl.com/api-create.php?url=' . $url;
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_URL, $url);
        $tinyurl = curl_exec($ch);
        curl_close($ch);
        return $tinyurl;
    } else {
        //cURL disabled on server; Return long URL instead.
        return $url;
    }
}


?>

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The Editorial Team of 4everTutorials consists of a group of PHP Professionals.