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 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()
});
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.
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.
For another Javascript example, take a look at the article linked to in answer #1 of this StackOverflow thread, 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.
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…
