You can’t use PHP in the WordPress back-end editor. Maybe with a plugin you can, but not out of the box. The easiest solution for this is creating a shortcode. Then you can use something like [input type=”text” name”from”] in your editor. function input_func( $atts ) { extract( shortcode_atts( array( ‘type’ => ‘text’, ‘name’ => … Read more
WP doesn’t provide any helper methods for creating and processing forms in the front-end. To process your front-end form simply check for $_POST-ed data. I suggest you do this from within an action, and only if the widget is active. In your constructor – the someWidget() method (which you should rename to __construct, and call … Read more
Gravity Forms is by far the best form plugin available for WordPress and it will allow you to easily do what you are looking for. http://gravityforms.com Here is an example of how to do it: Set the confirmation to show which checkboxes were checked using the merge tags: This form can be placed anywhere in … Read more
If your JavaScript is running in the admin, you don’t need to set an explicit path to admin-ajax.php. It’s always available as a JS variable called “ajaxurl”. You can see an example of this in the Codex, under the heading “AJAX on the Administration Side” Ajaxurl is, unfortunately, not available on the frontend by default. … Read more
I have done a simple function for that, but i allow all types of media. So this could be a start: function insert_attachment( $file_handler, $post_id, $settpdf=”false” ) { // check to make sure its a successful upload if ( $_FILES[$file_handler][‘error’] !== UPLOAD_ERR_OK ) __return_false(); require_once( ABSPATH . ‘wp-admin’ . ‘/includes/image.php’ ); require_once( ABSPATH . ‘wp-admin’ … Read more
This is a very basic nonce setup for a plugin: Create your nonce input in the form: wp_nonce_field( basename(__FILE__), $nonce_key ); Then check your nonce once submitted: if ( empty($_POST[$nonce_key]) || ! wp_verify_nonce( $_POST[$nonce_key], basename(__FILE__) ) ) return; basename(FILE) just uses the current filename (eg: plugin_options.php) to create the nonce string. You need to provide … Read more
You can’t do this: wp_redirect( get_permalink($pid)); after you’ve already sent content to the browser. Headers were already sent, and wp_redirect is attempting to send a header again. The first three lines of the template you pasted above are all sending content to the browser, when you close and open php. evidently your header.php file is … Read more
A basic example of inserting data into post meta fields. In your chosen template file you can do something similar to, <?php //this does not include data validation and sensitization but will check for the //existence of $_POST values being set. if ( ‘POST’ == $_SERVER[‘REQUEST_METHOD’] && !empty( $_POST[‘action’] ) && $_POST[‘action’] == “add_meta”) { … Read more
All of this can be done with code of course but since you say, “The first part (check if the user is registered / subscribed) is the difficult one for me.” …then your time will be better spent going directly to plugins that allow for similar functionality as described in your question. The first recommendation, … Read more
That is more or less how post works. What you need to do is what WordPress does on the backend. Submit the form Process it Redirect back to the original page. That way, a refresh doesn’t pass post data. There is a name for that process but I can’t remember what it is right now. … Read more