function all_view 注意这个函数名调用的就是用它了 global $wpdb; $count = 0; $views=$wpdb-get_resultsSELECT FROM $wpdb-postmeta WHERE meta_key=views; foreach$views as $key=$value $meta_value=$v

The given code defines a function named "all_view" that retrieves the total number of views from a WordPress database. Here is a breakdown of the code:

1. The global keyword is used to access the $wpdb object, which is the WordPress database class.

2. The $count variable is initialized to 0. This variable will store the total number of views.

3. The $views variable is assigned the result of a database query using the get_results method of the $wpdb object. The query selects all rows from the $wpdb->postmeta table where the meta_key column is 'views'.

4. A foreach loop is used to iterate over the $views array and extract the meta_value property from each object.

5. The if condition checks if the meta_value is not empty or blank. If it is not blank, the meta_value is converted to an integer using the (int) cast and added to the $count variable.

6. Finally, the function returns the total number of views.

To use this function, you can simply call it in your code wherever you need to retrieve the total number of views