Title: [Plugin: Yet Another Related Posts Plugin] version 3.4 throws error: warning: array_merge(): argumen Last modified: August 20, 2016 --- # [Plugin: Yet Another Related Posts Plugin] version 3.4 throws error: warning: array_merge(): argumen * Resolved [azn137](https://wordpress.org/support/users/azn137/) * (@azn137) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-yet-another-related-posts-plugin-version-34-throws-error-warning-array_merge-argument-2-is-not-an-array/) * The title says it all, here’s the text of the error message: * **Warning: array_merge() [function.array_merge]: Argument #2 is not an array in [blah blah]/class-core.php on line 141** _(also, line 146)_ * Any idea why? * [http://wordpress.org/extend/plugins/yet-another-related-posts-plugin/](http://wordpress.org/extend/plugins/yet-another-related-posts-plugin/) Viewing 15 replies - 1 through 15 (of 18 total) 1 [2](https://wordpress.org/support/topic/plugin-yet-another-related-posts-plugin-version-34-throws-error-warning-array_merge-argument-2-is-not-an-array/page/2/?output_format=md) [→](https://wordpress.org/support/topic/plugin-yet-another-related-posts-plugin-version-34-throws-error-warning-array_merge-argument-2-is-not-an-array/page/2/?output_format=md) * [jlapitan](https://wordpress.org/support/users/jlapitan/) * (@jlapitan) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-yet-another-related-posts-plugin-version-34-throws-error-warning-array_merge-argument-2-is-not-an-array/#post-2446174) * same problem * Thread Starter [azn137](https://wordpress.org/support/users/azn137/) * (@azn137) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-yet-another-related-posts-plugin-version-34-throws-error-warning-array_merge-argument-2-is-not-an-array/#post-2446182) * Looks like the previous version didn’t overload this function, and this one just borked it. Here’s the offending function: * ``` function get_option( $option = null ) { $options = get_option( 'yarpp' ); // ensure defaults if not set: $options = array_merge( $this->default_options, $options ); // some extra work is required for arrays: foreach ( $this->default_options as $key => $default ) { if ( !is_array($default) ) continue; $options[$key] = array_merge( $this->default_options[$key], $options[$key] ); } if ( !isset($options['weight']['tax']) ) $options['weight']['tax'] = $this->default_options['weight']['tax']; if ( is_null( $option ) ) return $options; $optionpath = array(); $parsed_option = array(); wp_parse_str($option, $parsed_option); $optionpath = $this->array_flatten($parsed_option); $current = $options; foreach ( $optionpath as $optionpart ) { if ( !is_array($current) || !isset($current[$optionpart]) ) return null; $current = $current[$optionpart]; } return $current; } ``` * [mitcho (Michael Yoshitaka Erlewine)](https://wordpress.org/support/users/mitchoyoshitaka/) * (@mitchoyoshitaka) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-yet-another-related-posts-plugin-version-34-throws-error-warning-array_merge-argument-2-is-not-an-array/#post-2446183) * What happens if you change line 139 to be * `$options = (array) get_option( 'yarpp', array() );` * ? * [rahmis](https://wordpress.org/support/users/rahmis/) * (@rahmis) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-yet-another-related-posts-plugin-version-34-throws-error-warning-array_merge-argument-2-is-not-an-array/#post-2446197) * Thanks mitcho. That did the trick for me. * [mitcho (Michael Yoshitaka Erlewine)](https://wordpress.org/support/users/mitchoyoshitaka/) * (@mitchoyoshitaka) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-yet-another-related-posts-plugin-version-34-throws-error-warning-array_merge-argument-2-is-not-an-array/#post-2446199) * I pushed this hotfix to the 3.4 tag… hopefully wordpress.org will repackage it quickly. * [jlapitan](https://wordpress.org/support/users/jlapitan/) * (@jlapitan) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-yet-another-related-posts-plugin-version-34-throws-error-warning-array_merge-argument-2-is-not-an-array/#post-2446204) * how will we know if it has been fixed? an upgrade notification? * [mitcho (Michael Yoshitaka Erlewine)](https://wordpress.org/support/users/mitchoyoshitaka/) * (@mitchoyoshitaka) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-yet-another-related-posts-plugin-version-34-throws-error-warning-array_merge-argument-2-is-not-an-array/#post-2446208) * The zip archive has been updated. Just download again and replace your files: * [http://downloads.wordpress.org/plugin/yet-another-related-posts-plugin.3.4.zip](http://downloads.wordpress.org/plugin/yet-another-related-posts-plugin.3.4.zip) * [mitcho (Michael Yoshitaka Erlewine)](https://wordpress.org/support/users/mitchoyoshitaka/) * (@mitchoyoshitaka) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-yet-another-related-posts-plugin-version-34-throws-error-warning-array_merge-argument-2-is-not-an-array/#post-2446209) * Thanks for the quick report! * [jlapitan](https://wordpress.org/support/users/jlapitan/) * (@jlapitan) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-yet-another-related-posts-plugin-version-34-throws-error-warning-array_merge-argument-2-is-not-an-array/#post-2446218) * thanks! where are the previous settings on the plugin? like the accuracy for related posts * Thread Starter [azn137](https://wordpress.org/support/users/azn137/) * (@azn137) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-yet-another-related-posts-plugin-version-34-throws-error-warning-array_merge-argument-2-is-not-an-array/#post-2446219) * That zip did the trick for me. Thanks. * [jlapitan](https://wordpress.org/support/users/jlapitan/) * (@jlapitan) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-yet-another-related-posts-plugin-version-34-throws-error-warning-array_merge-argument-2-is-not-an-array/#post-2446221) * saw it already, screen options * [jlapitan](https://wordpress.org/support/users/jlapitan/) * (@jlapitan) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-yet-another-related-posts-plugin-version-34-throws-error-warning-array_merge-argument-2-is-not-an-array/#post-2446258) * why is it that there are no related posts being displayed? * another error i noticed: * when you check the SHOW excerpt this message appears on the textbox * Warning: array_merge() [[function.array-merge](https://wordpress.org/support/topic/plugin-yet-another-related-posts-plugin-version-34-throws-error-warning-array_merge-argument-2-is-not-an-array/function.array-merge?output_format=md)]: Argument #2 is not an array in /home/mysite/public_html/v2/wp-content/plugins/ yet-another-related-posts-plugin/class-core.php on line 146 * [mitcho (Michael Yoshitaka Erlewine)](https://wordpress.org/support/users/mitchoyoshitaka/) * (@mitchoyoshitaka) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-yet-another-related-posts-plugin-version-34-throws-error-warning-array_merge-argument-2-is-not-an-array/#post-2446264) * [@jlapitan](https://wordpress.org/support/users/jlapitan/) you’ll want to replace your files with the new 3.4 zip. * [jlapitan](https://wordpress.org/support/users/jlapitan/) * (@jlapitan) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-yet-another-related-posts-plugin-version-34-throws-error-warning-array_merge-argument-2-is-not-an-array/#post-2446267) * i did * [mitcho (Michael Yoshitaka Erlewine)](https://wordpress.org/support/users/mitchoyoshitaka/) * (@mitchoyoshitaka) * [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-yet-another-related-posts-plugin-version-34-throws-error-warning-array_merge-argument-2-is-not-an-array/#post-2446281) * If you’re using the 3.4 zip from wordpress.org, there is no array_merge function on line 146: * [https://plugins.trac.wordpress.org/browser/yet-another-related-posts-plugin/tags/3.4/class-core.php#L146](https://plugins.trac.wordpress.org/browser/yet-another-related-posts-plugin/tags/3.4/class-core.php#L146) Viewing 15 replies - 1 through 15 (of 18 total) 1 [2](https://wordpress.org/support/topic/plugin-yet-another-related-posts-plugin-version-34-throws-error-warning-array_merge-argument-2-is-not-an-array/page/2/?output_format=md) [→](https://wordpress.org/support/topic/plugin-yet-another-related-posts-plugin-version-34-throws-error-warning-array_merge-argument-2-is-not-an-array/page/2/?output_format=md) The topic ‘[Plugin: Yet Another Related Posts Plugin] version 3.4 throws error: warning: array_merge(): argumen’ is closed to new replies. * ![](https://ps.w.org/yet-another-related-posts-plugin/assets/icon-256x256.png? rev=2549977) * [YARPP - Yet Another Related Posts Plugin](https://wordpress.org/plugins/yet-another-related-posts-plugin/) * [Frequently Asked Questions](https://wordpress.org/plugins/yet-another-related-posts-plugin/#faq) * [Support Threads](https://wordpress.org/support/plugin/yet-another-related-posts-plugin/) * [Active Topics](https://wordpress.org/support/plugin/yet-another-related-posts-plugin/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/yet-another-related-posts-plugin/unresolved/) * [Reviews](https://wordpress.org/support/plugin/yet-another-related-posts-plugin/reviews/) * 18 replies * 4 participants * Last reply from: [mitcho (Michael Yoshitaka Erlewine)](https://wordpress.org/support/users/mitchoyoshitaka/) * Last activity: [14 years, 6 months ago](https://wordpress.org/support/topic/plugin-yet-another-related-posts-plugin-version-34-throws-error-warning-array_merge-argument-2-is-not-an-array/page/2/#post-2446309) * Status: resolved