add_action(‘wp_ajax_[action name]’, myfunction) problem

by

I’m trying to integrate ajax in wordpress using the wp codex guidelines.
In the PHP I added:

wp_enqueue_script ( 'my_ajax', ADMIN_URL . 'js/ajax.js','jquery','1.0.0' );
wp_localize_script( 'my_ajax', 'MyAjax', array( 'ajaxurl' => admin_url( 'admin-ajax.php' ) ) );

The ajax code is:

jQuery.ajax({url: MyAjax.ajaxurl, type: "POST",data: {action: 'myaction',postID : MyAjax.postID}, success: function(response) {
 alert('Got this from the server: ' + response);
}});

and the PHP function that should be called by ajax is:

function ajax_function() {
...do something...
}
add_action('wp_ajax_myaction', 'ajax_function');
add_action('wp_ajax_admin_myaction', 'ajax_function');

The ajax call is successful (the “alert” works), however, the php function “ajax_function” is never called.
After doing some debugging I realized that even though the action call add_action(‘wp_ajax_ sets a new element in the global $wp_filter array, when the corresponding do_action runs inside admin-ajax.php, the $wp_filter array no longer contains that element.

Therefore, “ajax_function” function is ignored.
Any idea why the function is not called?

2 s
2

In my projects I do it like that

PHP

function foo() {
    echo 'bar';
}
add_action('wp_ajax_foo', 'foo' ); // executed when logged in
add_action('wp_ajax_nopriv_foo', 'foo' ); // executed when logged out

Javascript

data = { action: 'foo', avalue: 'some value', 'anothervalue': 'another value' };
jQuery.post(ajaxurl, data, function(response){
    alert(response);
});

Leave a Comment