I need to turn this code:

<?php if ( function_exists( 'echo_ald_crp' ) ) echo_ald_crp(); ?>

into a shortcode. Can someone help me do this? I have researched but am just lost to be honest. Thanks!

  • what is "echo_ald_crp()" does? – Jean-philippe Emond Jul 28 '16 at 20:57
  • It's a plugin that displays related blog posts based off of the page title. – Brian Schnurr Jul 28 '16 at 21:05
  • If you're adding this to the end of every single posts content, you would be better off adding it to your theme template instead of as a shortcode – Tom J Nowell Jul 29 '16 at 10:05

Init your shortcode

add_shortcode('shortcode_ald_crp', 'myshortcode_echo_ald_crp');

The function what you want:

function myshortcode_echo_ald_crp() {
    if ( function_exists( 'echo_ald_crp' ) ) echo_ald_crp();
    return ob_get_clean();

you call you shortcode in a post like this:


Or into the php code:

echo do_shortcode('[shortcode_ald_crp]');


Change the function add_shortcode

shortcode_ald_crp for myshortcode_echo_ald_crp

| improve this answer | |
  • Thanks! I tried adding the shortcode [shortcode_ald_crp] but it just displays that text rather than the blog posts. I added everything you said to the functions. What would cause that? Thanks! – Brian Schnurr Jul 28 '16 at 21:09
  • are you sure that echo_ald_crp() return the whole blog post? Because it is suppose to alter the "output". – Jean-philippe Emond Jul 28 '16 at 21:13
  • Yes. I am currently using the PHP script on my product page template, and it's showing the related blog posts. – Brian Schnurr Jul 28 '16 at 21:16
  • I added this to my functions: //blog posts add_shortcode('shortcode_ald_crp', 'myshortcode_echo_ald_crp'); function shortcode_ald_crp() { ob_start(); if ( function_exists( 'echo_ald_crp' ) ) echo_ald_crp(); return ob_get_clean(); } – Brian Schnurr Jul 28 '16 at 21:22
  • So all you see is [shortcode_ald_crp] ? And this code is in functions.php of your active theme? – czerspalace Jul 28 '16 at 21:32

Do you mean something like this (untested):

// function for your shortcode
function shortcode_action($atts) {

        if ( function_exists( 'echo_ald_crp' ) ) echo_ald_crp();
        $content = ob_get_clean();
        return $content;

// creates shortcode [shortcodehandle] so change it accordingly
add_shortcode( 'shortcodehandle', 'shortcode_action' );

Update: using ob_get_contents to return the content of the output of echo_ald_crp.

Update 2: using ob_get_clean() as highlighted by @jgraup in the comments.

| improve this answer | |
  • It's probably better to use ob_get_clean() - php.net/manual/en/function.ob-get-clean.php - ob_get_contents doesn't clear the output buffer. – jgraup Jul 29 '16 at 2:45
  • @jgraup Great catch, I've updated the answer. – Christine Cooper Jul 29 '16 at 9:27
  • While you're at it, maybe wrap it all in the conditional. No need to run excess functions if nothing will yield ;) – jgraup Jul 29 '16 at 13:26

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