Unable to use $wpdb in WordPress

You should use the default way the WP recommend to handle ajax calls. This will save you from lots of pitfalls and bad practices. add_action( ‘wp_ajax_nopriv_****’, ‘your_custom_function’ ); add_action( ‘wp_ajax_****’, ‘your_custom_function’ ); function your_custom_function() { } JS part jQuery.ajax({ type: “post”, dataType: “json”, url: ajax_url,// need the admin_url(‘admin-ajax.php’) data: formData, // your data success: function(msg){ … Read more

How to Update multiple rows using $wpdb->update

It is a a bit of a stab in the dark, but I’m fairly confident that the problem is your foreach loop. It’s broken (it will not execute anything because only an empty statement (;) is affected, and you will probably want it to have a block that contains the rest of the code. As … Read more

Unable to insert data into using custom plugin

In the table, all columns are set with NOT NULL consent. that means they can not be empty at all and considered as required fields. But in the insert query, You are saving only 3 records. $wpdb->insert( $table_name, array( ‘holiday_name’ => $holiday_name, ‘date’ => $date, ‘state’ => $state_form_select, ) ); That’s the issue. Either insert … Read more

Show error messages to a user when database insert fails

You should not use the $errors globally, but use hooks in WordPress development. Since you are new to WP development, I will explain briefly how it works. What you should do instead: make a new hook, or use an existing one which you call at the location you want this error to appear in your … Read more

Sql query triggered twice

Try Applying These Changes Add this conditional before the // first check if data exists with select query: // Do nothing else if the search term is empty. if ( empty( $search_term ) ) { return $where; } Update: You may also want to check if it’s the main query and if not, exit the … Read more

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)