问题
I'm making a plugin to connect WordPress to a Parse Server instance. When I tried to excute the plugin it threw the error below:
Notice: Undefined index: wp-parse-api-page in .../wp-content/plugins/WP-Plugin/includes/class-wp-parse-api-admin-settings.php on line 31
Here is the code...
Line 31 $_GET['wp-parse-api-page']= (int)$_GET['wp-parse-api-page'];
I would appreciate it if someone could point out what I'm missing...
回答1:
make sure in url pass this query-string variable wp-parse-api-page and in code add condition before use query-string variable.
if(isset($_GET['wp-parse-api-page']))
$_GET['wp-parse-api-page']= (int)$_GET['wp-parse-api-page'];
So this warning won't come.
回答2:
You don't have the item in the array with the key wp-parse-api-page. Check your url for ?wp-parse-api-page=.
来源：https://stackoverflow.com/questions/48073292/notice-undefined-index-parse-server-wordpress-plugin