Creates a pretty link from a target url. Returns a pretty link url on success and false on failure.

create_my_pretty_link.php

<?php

/** Creates a pretty link from a target url. Returns a pretty link url on success and false on failure.
  * Assumes that Pretty Link is installed on your WordPress website.
  */
function create_my_pretty_link($target_url) {
  if( false != ( $link_id = prli_create_pretty_link($target_url) ) ) {
    return prli_get_pretty_link_url($link_id);
  }
  return false;
}

/** Gets (if it already exists) or creates a pretty link from a target url.
  * Returns a pretty link url on success and false on failure.
  * Assumes that Pretty Link is installed on your WordPress website.
  */
function get_or_create_my_pretty_link($target_url) {
  global $prli_link;

  if( ( false != ( $link_id = $prli_link->find_first_target_url($target_url) ) ) ||
      ( false != ( $link_id = prli_create_pretty_link($target_url) ) ) ) {
    return prli_get_pretty_link_url($link_id);
  }

  return false;
}