Title: ajax return javascript to php Last modified: August 20, 2016 --- # ajax return javascript to php * [budster2k1](https://wordpress.org/support/users/budster2k1/) * (@budster2k1) * [13 years, 9 months ago](https://wordpress.org/support/topic/ajax-return-javascript-to-php/) * I have added some ajax that posts a javascript variable that I need to be able to use in a php function I have been able to see the output in the browser inspector as a preview but I cant get it to echo on screen. How do I get this to a php variable I can use in a function to determine users local time based on their timezone. * ``` jQuery.ajax({ type: 'post', url: '/wp-admin/admin-ajax.php', data:{ 'action':'get_tz', 'tz':timezone.name() }, dataType: 'html', success:function(data){ }, error: function(errorThrown){ alert('error'); console.log(errorThrown); } }); ``` * ``` wp_localize_script( 'daily_tee_tz', 'get-tz', array( 'ajaxurl' => admin_url( 'admin-ajax.php' ) ) ); add_action( 'wp_ajax_get_tz', 'get_tz_handler' ); add_action( 'wp_ajax_nopriv_get_tz', 'get_tz_handler' ); function get_tz_handler() { echo $_POST['tz']; die(); // Make sure you do this! } ``` Viewing 4 replies - 1 through 4 (of 4 total) * [pdclark](https://wordpress.org/support/users/pdclark/) * (@pdclark) * [13 years, 9 months ago](https://wordpress.org/support/topic/ajax-return-javascript-to-php/#post-2997515) * Your current code is correct, and the value for `$_POST['tz']` is being correctly passed to PHP because the response is displaying in the web inspector. * Your problem is not with WordPress, but with jQuery: once you echo `$_POST['tz']`, that is available to jQuery for use, but you have to tell jQuery how to display that information somewhere on your page. * **Example 1** Alert your response from the ajax call. * ``` jQuery.ajax({ type: 'post', url: '/wp-admin/admin-ajax.php', data:{ 'action':'get_tz', 'tz':timezone.name() }, dataType: 'html', success:function(data){ alert(data); }, error: function(errorThrown){ alert('error'); console.log(errorThrown); } }); ``` * **Example 2** Load the response into an element with ID “response”. * ``` jQuery.ajax({ type: 'post', url: '/wp-admin/admin-ajax.php', data:{ 'action':'get_tz', 'tz':timezone.name() }, dataType: 'html', success:function(data){ jQuery('#response').html( data ); }, error: function(errorThrown){ alert('error'); console.log(errorThrown); } }); ``` * **Example 3** Use [jQuery.load](http://api.jquery.com/load/) instead of jQuery. ajax() for simpler loading into an HTML element with ID response. * ``` jQuery('#response').load( '/wp-admin/admin-ajax.php', { 'action':'get_tz', 'tz':timezone.name() }); ``` * Thread Starter [budster2k1](https://wordpress.org/support/users/budster2k1/) * (@budster2k1) * [13 years, 9 months ago](https://wordpress.org/support/topic/ajax-return-javascript-to-php/#post-2997555) * Thanks for the advise I can get your examples to work but what I think I am looking for is a way to set a cookie then use php to read that cookie I got this to work with * ``` jQuery.ajax({ type: 'post', url: '/wp-admin/admin-ajax.php', data:{ 'action':'get_tz', 'tz':timezone.name() }, dataType: 'html', success:function(data){ document.cookie = "timezone=" + data; }, error: function(errorThrown){ alert('error'); console.log(errorThrown); } }); ``` * but what happens on the first load is the cookie is set and it shows on a reload is there a way to set this cookie before the page loads. The variable I am looking to set as a cookie is timezone by name. Then is php I will be able to do a time comparison and display content accordingly. I was also wondering if ajax is nessecary to set this cookie value. Thanks for any help. * [pdclark](https://wordpress.org/support/users/pdclark/) * (@pdclark) * [13 years, 9 months ago](https://wordpress.org/support/topic/ajax-return-javascript-to-php/#post-2997557) * It is not possible to set a cookie via javascript before a page loads, but you can follow my original examples and use jQuery to modify your page content without reloading the page. * AJAX is not neccissary to set a cookie, but it is required for sending information about your client’s timezone from Javascript without reloading. You can achieve client timezone detection with no javascript or AJAX (before loading) by using a PHP Geolocation library, such as [geoPlugin](http://www.geoplugin.com/webservices/php). * For another Javascript example, take a look at the article linked to in answer# 1 of [this StackOverflow thread](http://stackoverflow.com/questions/1905397/how-to-get-clients-timezone), as well as the full example given in answer #2. * This question isn’t really related to WordPress in any way at this point. You may be best served in jQuery-related forums. * [BenRacicot](https://wordpress.org/support/users/benracicot/) * (@benracicot) * [12 years, 10 months ago](https://wordpress.org/support/topic/ajax-return-javascript-to-php/#post-2997656) * I have the same TYPE of problem where I have JS variables that I need to send along with my AJAX * ``` data = { action:'wpa56343_search', latitude: $('input#latitude').attr('value'), longitude: $('input#longitude').attr('value') }; _do_ajax(data); }); // end init func function _do_ajax(obj) { console.log(obj); $.ajax({ type:"POST", url: My_Obj.ajaxurl, data: data, dataType: 'json', success: function( response ){ loop with query data } ``` * This work, but I cannot get $_POST[] variables out of it on the PHP side to include in my query… Viewing 4 replies - 1 through 4 (of 4 total) The topic ‘ajax return javascript to php’ is closed to new replies. * 4 replies * 3 participants * Last reply from: [BenRacicot](https://wordpress.org/support/users/benracicot/) * Last activity: [12 years, 10 months ago](https://wordpress.org/support/topic/ajax-return-javascript-to-php/#post-2997656) * Status: not resolved ## Topics ### Topics with no replies ### Non-support topics ### Resolved topics ### Unresolved topics ### All topics