Title: [Plugin: Restrict Categories] Error when using plugin… Last modified: August 19, 2016 --- # [Plugin: Restrict Categories] Error when using plugin… * Resolved [Peja](https://wordpress.org/support/users/peja1389/) * (@peja1389) * [15 years, 6 months ago](https://wordpress.org/support/topic/plugin-restrict-categories-error-when-using-plugin/) * I get this for every category on the edit screen. * > Warning: in_array() [function.in-array]: Wrong datatype for second argument > in /home/mysite/public_html/wp-content/plugins/restrict-categories/restrict- > categories.php on line 204 Viewing 15 replies - 1 through 15 (of 22 total) 1 [2](https://wordpress.org/support/topic/plugin-restrict-categories-error-when-using-plugin/page/2/?output_format=md) [→](https://wordpress.org/support/topic/plugin-restrict-categories-error-when-using-plugin/page/2/?output_format=md) * Plugin Author [Matthew Muro](https://wordpress.org/support/users/mmuro/) * (@mmuro) * [15 years, 6 months ago](https://wordpress.org/support/topic/plugin-restrict-categories-error-when-using-plugin/#post-1777120) * Some have reported that selecting a category and saving fixes this. * If not, I’m working on some updates and will hopefully get them released soon. * [misthero](https://wordpress.org/support/users/misthero/) * (@misthero) * [15 years, 6 months ago](https://wordpress.org/support/topic/plugin-restrict-categories-error-when-using-plugin/#post-1777291) * exact same problem here just after installing the plugin the very first time on a new wordpress site. * the error is shown next to every unchecked checkbox, if you chack it the error is gone for that checkbox, anyway the plugin doesn’t work. No category is restricted. * Thank you for the support * Plugin Author [Matthew Muro](https://wordpress.org/support/users/mmuro/) * (@mmuro) * [15 years, 6 months ago](https://wordpress.org/support/topic/plugin-restrict-categories-error-when-using-plugin/#post-1777292) * I just pushed out Version 1.3 that hopefully fixes this error. * [@misthero](https://wordpress.org/support/users/misthero/): can you provide me the PHP version you are running (eg. 5.2.1, 5.3.2)? * [misthero](https://wordpress.org/support/users/misthero/) * (@misthero) * [15 years, 6 months ago](https://wordpress.org/support/topic/plugin-restrict-categories-error-when-using-plugin/#post-1777293) * Thank you for your answer, * I just udpdated but: * ``` Downloading update from http://downloads.wordpress.org/plugin/restrict-categories.1.3.zip… Unpacking the update… Installing the latest version… Deactivating the plugin… Removing the old version of the plugin… Plugin upgraded successfully. Reactivating the plugin… Warning: Invalid argument supplied for foreach() in /home/www/test-site/public_html/wp-content/plugins/restrict-categories/restrict-categories.php on line 277 ``` * I see this error on top of every page in the dashboard now…. * PHP Version 5.2.6-1+lenny9 * I tried to disable every plugin but restrict categories, no good. * anyway the previous error is gone, still no gategory restricted. * Thank you again. * Plugin Author [Matthew Muro](https://wordpress.org/support/users/mmuro/) * (@mmuro) * [15 years, 6 months ago](https://wordpress.org/support/topic/plugin-restrict-categories-error-when-using-plugin/#post-1777295) * Hmm… * You shouldn’t be getting an error on that line. The only reason you’d be getting that error is if get_user_meta is not returning an array. * Can you add `var_dump($user_cap);` right before line 277 and tell me what it outputs? * Also, you may want to download a fresh copy of the plugin again. * [misthero](https://wordpress.org/support/users/misthero/) * (@misthero) * [15 years, 6 months ago](https://wordpress.org/support/topic/plugin-restrict-categories-error-when-using-plugin/#post-1777296) * Tis is what I get adding that line * ``` string(0) "" Warning: Invalid argument supplied for foreach() in /home/www/test-site/public_html/wp-content/plugins/restrict-categories/restrict-categories.php on line 279 ``` * Like I said is a fresh installation with untouched wordpress running Twentyten theme, I’ll try deleting and uploading the plugin manually and let you know what happens. * [misthero](https://wordpress.org/support/users/misthero/) * (@misthero) * [15 years, 6 months ago](https://wordpress.org/support/topic/plugin-restrict-categories-error-when-using-plugin/#post-1777297) * ok, deleted the plugin , uploaded again via ftp and activated, the error is still there… * If you want me to try anything else I’m here. * Thank you again * Plugin Author [Matthew Muro](https://wordpress.org/support/users/mmuro/) * (@mmuro) * [15 years, 6 months ago](https://wordpress.org/support/topic/plugin-restrict-categories-error-when-using-plugin/#post-1777298) * For some reason, get_user_meta is returning an empty string. What version of WordPress are you running? * [misthero](https://wordpress.org/support/users/misthero/) * (@misthero) * [15 years, 6 months ago](https://wordpress.org/support/topic/plugin-restrict-categories-error-when-using-plugin/#post-1777302) * oh sorry, I went to sleep, the wordpress version is the last, 3.0.1 english languange, the theme is twentyten,it is a test server, I’m testing some functionalities I want to include in a real theme, if it’s important the istallation for now includes just 6 users I created for testing a 2 categories. * if you want I can give you access to the dashboard, no problem for me if you have some spare time.. * Thank you. * Plugin Author [Matthew Muro](https://wordpress.org/support/users/mmuro/) * (@mmuro) * [15 years, 6 months ago](https://wordpress.org/support/topic/plugin-restrict-categories-error-when-using-plugin/#post-1777304) * How comfortable are you with MySQL? * If you can use phpMyAdmin or something similar to access your database, open the `wp_usermeta` table and find the `wp_capabilities` entries under the `meta_key` column. You should have one for each user role. Paste in one of the `meta_value` here. It’ll look something like this: `a:1:{s:13:"administrator";s:1:"1";}` * [misthero](https://wordpress.org/support/users/misthero/) * (@misthero) * [15 years, 6 months ago](https://wordpress.org/support/topic/plugin-restrict-categories-error-when-using-plugin/#post-1777305) * Hi Matthew, * I have 2 roles set up right now, the meta values are: * `a:1:{s:13:"administrator";s:1:"1";}` for the default admin * `a:1:{s:11:"contributor";s:1:"1";}` for the 6 contributors i created * but now looking at the database one thing maybe you should know, in this database the prefix is not “wp_” many of us change the default table prefix inside config. php file * in my case the prefix is “test_” because I specified the var: `$table_prefix = 'test_';` in config.php * so I do not have _wp\_usermeta_ nor _wp\_capabilities_ but but _test\_usermeta_ and _test\_capabilities_, and so on… * Could this be the problem with the plugin?? * Thank you. * Plugin Author [Matthew Muro](https://wordpress.org/support/users/mmuro/) * (@mmuro) * [15 years, 6 months ago](https://wordpress.org/support/topic/plugin-restrict-categories-error-when-using-plugin/#post-1777306) * Is the meta_key called `wp_capabilities`? * Plugin Author [Matthew Muro](https://wordpress.org/support/users/mmuro/) * (@mmuro) * [15 years, 6 months ago](https://wordpress.org/support/topic/plugin-restrict-categories-error-when-using-plugin/#post-1777307) * I’m sorry, I should have read your response more carefully. * Yes, that seems to be the problem with the plugin on your server. I’m able to reproduce the error. * A short term fix will be to change line 275 from `$user_cap = get_user_meta( $current_user->ID, 'wp_capabilities', true );` to `$user_cap = get_user_meta( $current_user->ID, 'test_capabilities', true );`. * I will work on getting a permanent fix online if you want to wait for the official download, though. * [misthero](https://wordpress.org/support/users/misthero/) * (@misthero) * [15 years, 6 months ago](https://wordpress.org/support/topic/plugin-restrict-categories-error-when-using-plugin/#post-1777308) * nope, is `test_capabilities` * as a side note I tried the bad way :p * changing any istance of `wp_capabilities` in the plugin with `test_capabilities`, the plugin seem to start working, it restrict categories, but I get another error: * `Warning: Invalid argument supplied for foreach() in /home/www/test-site/public_html/ wp-content/plugins/restrict-categories/restrict-categories.php on line 280` * Line280: `foreach ( $settings[$key . '_cats'] as $category ) {` * maybe mine is not the best solution… * edit: sorry I wrote while you where posting * Plugin Author [Matthew Muro](https://wordpress.org/support/users/mmuro/) * (@mmuro) * [15 years, 6 months ago](https://wordpress.org/support/topic/plugin-restrict-categories-error-when-using-plugin/#post-1777309) * Cool. * I pushed out a fix for that other error you are getting yesterday right around the time I told you to grab a fresh copy. You may want to try that again and reapply the test_capabilities fix. * Sorry for all the trouble, but you are helping make it a better plugin 🙂 Viewing 15 replies - 1 through 15 (of 22 total) 1 [2](https://wordpress.org/support/topic/plugin-restrict-categories-error-when-using-plugin/page/2/?output_format=md) [→](https://wordpress.org/support/topic/plugin-restrict-categories-error-when-using-plugin/page/2/?output_format=md) The topic ‘[Plugin: Restrict Categories] Error when using plugin…’ is closed to new replies. * ![](https://s.w.org/plugins/geopattern-icon/restrict-categories.svg) * [Restrict Categories](https://wordpress.org/plugins/restrict-categories/) * [Frequently Asked Questions](https://wordpress.org/plugins/restrict-categories/#faq) * [Support Threads](https://wordpress.org/support/plugin/restrict-categories/) * [Active Topics](https://wordpress.org/support/plugin/restrict-categories/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/restrict-categories/unresolved/) * [Reviews](https://wordpress.org/support/plugin/restrict-categories/reviews/) * 22 replies * 3 participants * Last reply from: [Matthew Muro](https://wordpress.org/support/users/mmuro/) * Last activity: [15 years, 6 months ago](https://wordpress.org/support/topic/plugin-restrict-categories-error-when-using-plugin/page/2/#post-1777317) * Status: resolved