Title: [Plugin: Meta Box] PHP Warnings
Last modified: August 20, 2016

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# [Plugin: Meta Box] PHP Warnings

 *  [wycks](https://wordpress.org/support/users/wycks/)
 * (@wycks)
 * [14 years, 2 months ago](https://wordpress.org/support/topic/plugin-meta-box-php-warnings/)
 * WordPress 3.3.1.
    PHP Version 5.3.8 Apache
 * Some warning, just an fyi.
 * Warning: Invalid argument supplied for foreach()meta-box\inc\classes\meta-box.
   php on line 486
    RW_Meta_Box::normalize( ) ..\meta-box.php:65
 * Warning: Invalid argument supplied for foreach()wp-includes\functions.php on 
   line 3287
    wp_list_pluck( ) ..\meta-box.php:70
 * Warning: array_unique() expects parameter 1 to be array, null given, meta-box.
   php on line 70
    array_unique ( ) ..\meta-box.php:70
 * Invalid argument supplied for foreach() in \classes\meta-box.php on line 80
    
   RW_Meta_Box->__construct( ) ..\demo.php:235
 * Warning: Invalid argument supplied for foreach()meta-box.php on line 131
    RW_Meta_Box-
   >admin_enqueue_scripts( ) ..\plugin.php:405 RW_Meta_Box::has_been_saved( ) ..\
   meta-box.php:179 RW_Meta_Box->show( ) ..\template.php:958
 * [http://wordpress.org/extend/plugins/meta-box/](http://wordpress.org/extend/plugins/meta-box/)

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 * 0 replies
 * 1 participant
 * Last reply from: [wycks](https://wordpress.org/support/users/wycks/)
 * Last activity: [14 years, 2 months ago](https://wordpress.org/support/topic/plugin-meta-box-php-warnings/)
 * Status: not resolved