Title: PHP Error
Last modified: August 30, 2016

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# PHP Error

 *  Resolved [Ronnie Albert](https://wordpress.org/support/users/roway/)
 * (@roway)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/php-error-137/)
 * Hi, I’m getting the following error code in the RP Post Nave Admin under post
   types and taxonomies options. Thanks
 *     ```
       Warning: is_array() expects exactly 1 parameter, 3 given in /home4/...../wp-content/plugins/rp-post-nav/admin/rp-post-nav-admin-options.php on line 337
        checked="checked" /> Posts
       ```
   
 * [https://wordpress.org/plugins/rp-post-nav/](https://wordpress.org/plugins/rp-post-nav/)

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Author [Rommel Plofino](https://wordpress.org/support/users/rplofino/)
 * (@rplofino)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/php-error-137/#post-6346509)
 * Hi Roway13,
 * Please upgrade your php version into 5 or above. is_array is not working in php
   4 or below. Let me know if you using php 5 or above already.
 *  Plugin Author [Rommel Plofino](https://wordpress.org/support/users/rplofino/)
 * (@rplofino)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/php-error-137/#post-6346537)
 * Hi Roway13,
 * Please update your RP Post Nav plugin and see the result. I already fixed your
   concern about selection of Post Types and Taxonomies.
 * Thanks for downloading the plugin. 😉
 *  Plugin Author [Rommel Plofino](https://wordpress.org/support/users/rplofino/)
 * (@rplofino)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/php-error-137/#post-6346677)
 * This issue is already resolved.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘PHP Error’ is closed to new replies.

 * ![](https://ps.w.org/rp-post-nav/assets/icon-256x256.png?rev=1193161)
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 * 3 replies
 * 2 participants
 * Last reply from: [Rommel Plofino](https://wordpress.org/support/users/rplofino/)
 * Last activity: [10 years, 8 months ago](https://wordpress.org/support/topic/php-error-137/#post-6346677)
 * Status: resolved