javascript - Send JSON date to a PHP backend, timezone is lost -

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i missing dates here.

assume have basic input page, this

markup

<input type="date" ng-model="item.date"> <button ng-click="test(item)">test</button>

angular module

angular.module('test', []).controller('ctrl', function($scope, $http){   $scope.test = function(item) {     $http.post('___', item);   } });

then on server side there's trivial code.

date_default_timezone_set ( 'europe/rome' ); var_dump( new \datetime($input['date']) );

being $input['date'] post-ed json date value, holds iso format following:

2016-03-22t23:00:00.000z

now, having timezone set, expect above mentioned iso date handled correct timezone, see instead this

object(datetime)#1 (3) {   ["date"]=>   string(26) "2016-03-22 23:00:00.000000"   ["timezone_type"]=>   int(2)   ["timezone"]=>   string(1) "z" }

which should resolved instead 2016-03-23 utc+1.

tl;dr

shouldn't following code

date_default_timezone_set ( 'europe/rome' ); var_dump( new \datetime('2016-03-22t23:00:00.000z');

resolve 2016-03-23 utc+1 ?

your code working correctly, not intended.

your javascript date generated in browser, - assume - timezone set europe/rome already. if use datepicker plugin, cited date if pick 2016-03-24, converted browser local timezone. variable stored in not carry information timezone, z part of date string assumes it's utc.

on server you're initializing date date string, , z used timezone. far know, no valid timezone code, utc assumed.

you have explicitly state in datetime constructor timezone use date, 

$date = new datetime($input['date'], new datetimezone('europe/rome'));

you're gonna have remove 'z' part of date.

i have put illustrate problem: http://sandbox.onlinephpfunctions.com/code/a545a7a87e3ad0f2e6eae1d134147aff30aec29f

<?php //date_default_timezone_set ( 'europe/rome' ); $date = new \datetime("2016-03-23t23:00:00.000", new datetimezone('utc') ); var_dump( $date ); // 2016-03-23 23:00:00.000000 $timezone = new datetimezone('europe/rome'); $date->settimezone($timezone);  var_dump(  $date ); // 2016-03-24 00:00:00.000000

edit:

try following code in html:

<input type="date" ng-model="item.date" ng-model-options="{timezone: 'utc'}">

your date in form 2016-03-18t00:00:00.000z, can send server is.

on server, if parse this, so

$date = new \datetime("2016-03-18t00:00:00.000z" ); var_dump( $date );

this output 

object(datetime)#1 (3) {   ["date"]=>   string(26) "2016-03-18 00:00:00.000000"   ["timezone_type"]=>   int(2)   ["timezone"]=>   string(1) "z" }

which closer wanted do.


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