ajax - Read For Learn

wp_set_auth_cookie() doesn’t work in Ajax call

I add one function wp_set_current_user for setting up current user. add_action( ‘wp_ajax_facebook_login’, ‘facebook_ajax_login_or_register’ ); add_action( ‘wp_ajax_nopriv_facebook_login’, ‘facebook_ajax_login_or_register’ ); function facebook_ajax_login_or_register(){ $uid = sanitize_text_field( $_POST[‘uid’] ); $args = array( ‘meta_key’ => ‘fbuid’, ‘meta_value’ => $uid, ‘meta_compare’ => ‘=’, ); $fb_user = get_users($args); $current_user_id = $fb_user[0]; wp_set_current_user($current_user_id);//Set current user wp_set_auth_cookie( $current_user_id, true ); $response[success] = true; echo … Read more

Adding “Remember Me” in custom login

insert this in form: <p class=”forgetmenot”><label for=”rememberme”><input name=”rememberme” type=”checkbox” id=”rememberme” value=”forever” /> Remember Me</label></p> In backend, like this: $credentials[‘user_login’] = $_POST[‘log’]; $credentials[‘user_password’] = $_POST[‘pwd’]; $credentials[‘remember’] = $_POST[‘rememberme’]; ….. wp_signon($credentials) ….

Help with 4.6. Attachment response object in JSON API plugin

I think it really all depends on what the issue with limiting this information is. Do you not want this particular data to be exposed? Do you not want to iterate through so much data? Are you intending on passing this data through a $.getJSON() request? Are you passing this data to a PHP function … Read more

Displaying PHP Errors from admin-ajax.php

WordPress by default hide errors for ajax request call. This can be confirmed from the source file wp-includes/load.php#L352, here: if ( defined( ‘XMLRPC_REQUEST’ ) || defined( ‘REST_REQUEST’ ) || ( defined( ‘WP_INSTALLING’ ) && WP_INSTALLING ) || wp_doing_ajax() ) { @ini_set( ‘display_errors’, 0 ); } See the function wp_doing_ajax() is being used in the conditional … Read more

Enable Submit Comment Without Page Reload (Using Ajax)?

Save the following javascrip file wpse54189-ajax-comments.js inside your plug-in folder – say plugins/plug-in-name/js (or if this must go your theme, in your theme folder). /* * jQuery autoResize (textarea auto-resizer) * @copyright James Padolsey http://james.padolsey.com * @version 1.04 */ (function(a){a.fn.autoResize=function(j){var b=a.extend({onResize:function(){},animate:true,animateDuration:150,animateCallback:function(){},extraSpace:20,limit:1000},j);this.filter(‘textarea’).each(function(){var c=a(this).css({resize:’none’,’overflow-y’:’hidden’}),k=c.height(),f=(function(){var l=[‘height’,’width’,’lineHeight’,’textDecoration’,’letterSpacing’],h={};a.each(l,function(d,e){h[e]=c.css(e)});return c.clone().removeAttr(‘id’).removeAttr(‘name’).css({position:’absolute’,top:0,left:-9999}).css(h).attr(‘tabIndex’,’-1′).insertBefore(c)})(),i=null,g=function(){f.height(0).val(a(this).val()).scrollTop(10000);var d=Math.max(f.scrollTop(),k)+b.extraSpace,e=a(this).add(f);if(i===d){return}i=d;if(d>=b.limit){a(this).css(‘overflow-y’,”);return}b.onResize.call(this);b.animate&&c.css(‘display’)===’block’?e.stop().animate({height:d},b.animateDuration,b.animateCallback):e.height(d)};c.unbind(‘.dynSiz’).bind(‘keyup.dynSiz’,g).bind(‘keydown.dynSiz’,g).bind(‘change.dynSiz’,g)});return this}})(jQuery); /* * Source: wp-comment-master WordPress Plugin * URL: http://wordpress.org/extend/plugins/wp-comment-master/ … Read more

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

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); });

post formats – how to switch meta boxes when changing format?

I did something like this once, but when you clicked on a certain category (essentially the same) It certainly isn’t a true ajax solution, it just hides and reveals the div with the settings, but It is a solution which works. You’ll definitely have to modify this for your needs, but if you have a … Read more

How can I run AJAX on a button click event?

Start from a working code base.. add_action(‘in_admin_header’, ‘my_ajax_button’); function my_ajax_button() { echo ‘<a href=”#ajaxthing” class=”myajax”>Test</a>’; } add_action(‘admin_head’, ‘my_action_javascript’); function my_action_javascript() { ?> <script type=”text/javascript” > jQuery(document).ready(function($) { $(‘.myajax’).click(function(){ var data = { action: ‘my_action’, whatever: 1234 }; // since 2.8 ajaxurl is always defined in the admin header and points to admin-ajax.php $.post(ajaxurl, data, function(response) … Read more

Nonces can be reused multiple times? Bug / Security issue?

In WordPress, nonces are specific to the user, the action being performed, and the time. With regards to time, a nonce is valid for 24 hours, and changes every 12 hours. This is considered an acceptable trade-off, since using a real number-used-once would involve adding a tracking system and having storage of the used nonces. … Read more

Allowing admin-ajax.php to receive “application/json” instead of “x-www-form-urlencoded”

it seems the latter only accepts x-www-form-urlencoded That’s not completely true. WordPress admin-ajax.php takes the action from $_REQUEST[‘action’] and $_REQUEST is equal to: array_merge($_POST, $_GET); But what many people don’t realize is that $_GET in PHP is not the data was sent to page using HTTP GET method, in fact, you can use whatever HTTP … Read more

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