I've started using PHP Carbon for my application since it seems so much easier than using and manipulating date/time with the DateTime class. What I want to do is check if the chosen date ($chosen_date) is greater than another date ($whitelist_date). I have tried this in the code below:
$chosen_date = new Carbon($chosen_date);
$whitelist_date = Carbon::now('Europe/London');
$whitelist_date->addMinutes(10);
echo "Chosen date must be after this date: ".$whitelist_date ."</br>";
echo "Chosen Date: ".$chosen_date ."</br>";
if ($chosen_date->gt($whitelist_date)) {
echo "proceed";
} else {
echo "dont proceed";
}
The original $chosen_date value comes from POST data. Here is the output I get:
Chosen date must be after this date: 2015-09-22 21:21:57
Chosen Date: 2015-09-22 21:01:00
proceed
Clearly the chosen date is not greater than the whitelist date but still the if statement returns true and echo's "proceed". I have been over the code over and over but I can't see where I have gone wrong.
It Might be, the time zones are not the same, so try this
$chosen_date = new Carbon($chosen_date, 'Europe/London');
$whitelist_date = Carbon::now('Europe/London');
$whitelist_date->addMinutes(10);
Remember you can always construct the instance and set the timezone for it:
$date = new Carbon();
$date->setTimezone('Europe/London');
$whitelist_date = $date->now();
Any tips on how I can manage data for users with different timezones?
You can create different objects with different Time zones. Try this and play with the results.
$london_date = new Carbon($chosen_date_from_london, 'Europe/London');
$colombia_date = new Carbon($chosen_date_from_colombia, 'Bogota/America');
Let's say you compare them:
$are_different = $london_date->gt($colombia_date);
var_dump($are_different); //FALSE
Nope, they're not different, although they're different times when you stare at the clock and in different parts of the world, they're still in the same Present Moment, the NOW.
There you go, just crate different objects or instances of Carbon(), and set different time zones using $instance->setTimeZone(TimeZone);
Or try using the following one:
if ($chosen_date->gte($whitelist_date))
Related
I am trying to get a simple line of text to appear if todays date is after another date.
I can either get it to appear on all pages or none, but I am unable to get it to display based on whether the challenge start date is before or after todays date. I believe it could be a date format issue, but everything I have tried has fallen short.
Here is my code:
Get todays date
$date_now = new dateTime();
Challenge start date
$challengeStartDate = date('dS F Y', strtotime($this->item->start_date));
echo '<!--' . strtotime('1970/1/1 00:00:00 +' . $validity) . '-->';
New text line
if ($challengeStartDate > $date_now) echo "New Text";
date() returns a string. With $challengeStartDate > $date_now it's like comparing if one string is bigger than the other (not sure if your dateTime handles that).
Your approach is otherwise fine. Just use timestamps to compare. time() gets you the time as a Unix timestamp:
$now = time();
if ($now > strtotime($this->item->start_date)) {
// do your thing
}
Something like this is more what you need. Try it out.
I had the very same problem some time ago.
All you need to do is store your local time in a database so it would be saved statically.
Because in your example, both $challengeStartDate and $date_now will change and update simultaneously and you wiill always get the current pc time!
Try storing it in a table or idk maybe sessions would help too.
I am saving the timestamp in SQL as bigint(20). The number is correct and in android or https://www.epochconverter.com it works fine.
However I am not able to create a date-string based on the timestamp received from database.
First of all, the timestamp seems to come from database as a String, so I can't just say echo date("d.m.Y, $timestamp). The result is the famous 31.12.1969.
So I tried echo date("d.m.Y, strtotime($timestamp)). However, even though strtotime is said to be able to convert almost everything to a timestamp, a simple String containing a timestamp is not possible. Results still remained on the last day of Brian Adams probably favorite year.
Some progress I made by casting the $timestamp to a float value like so: echo date("d.m.Y", floatval($timestamp));. However, now things got really confusing for me. I seemed to have successfully converted my timestamp, however, date() gave me the dates around 02.09.52299.
The timestamps I am using are timestamps of current time, e.g. 1588489252657, which currently leads to the date 23.03.52307.
So all I want is to come to a date based on the timestamp 1588489252657 to see the 03.05.2020 on my screen.
Thanks for any advice!
<?php
$timestamp = 1588489252657; // Timestamp in Milliseconds
$seconds = round($timestamp/1000, 0); // Timestamp Rounded to Seconds
$date = new DateTime(); // Create PHP DateTime Object
$date->setTimestamp($seconds); // Set the Timestamp
echo $date->format('Y-m-d H:i:s'); // Specify the Required Format
The answers are pretty much in the comment sections. But I have shared this answer since this is another approach in OOP fashion. You can leverage the power of PHP's DateTime Class.
PHP Official Documentation For DateTime Class Link Below:
PHP DateTime Class
You have to transform the timestamp to seconds first.
$timestamp = 1588489252657;
$dateInUnixSeconds = round($timestamp / 1000, 0);
$date = \DateTimeImmutable::createFromFormat('U', (string) $dateInUnixSeconds);
echo $date->format('d.m.Y');
PS:
I recommend you to use the \DateTimeImmutable object to avoid mutability problems.
https://github.com/Chemaclass/php-best-practices/blob/master/technical-skills/immutability.md
In My SQL Database I have a Timestamp Column with values like this one representing the Date of the last edit:
2015-01-17 08:55:34.000000
I want to compare the Date with the current date and when is the same day I want to echo Today and otherwise I want to Display the Date of the last edit:
$timefromdb = '2015-01-17 08:55:34.000000'
$edit = strtotime($timefromdb);
if($edit > $_SERVER['REQUEST_TIME']){echo "Today";}
else{
echo strftime("on %A, the %d %B %Y", $edit);
}
echo " at ".date('h:i',$edit)
It always Displays 01/01/1970. There must be a Problem with strtotime. I did a bit of research and it seems like my Timestamp Format isn't a valid one: http://php.net/manual/en/datetime.formats.php
Around the web are a lot of Questions about converting Timestamps but I just can't find the right one: I also got a bit confused by all the functions to convert date stuff.
So can someone Tell me how to get a valid Timestamp for using it in strftime and to compare it to the REQUEST_TIME.
Thanks in Advance!
UPDATE: As Always: The Problem sits in Front of the PC. I declared the Variable but never assgined the Timestamp to it :)
Chop off the .000000 from the date as it makes the date a format strtotime() cannot work with. There's several ways to do this. A simple substr is one of them.
$timefromdb = substr('2015-01-17 08:55:34.000000', 0, -7);
I'm not exactly understood you, but
try
1. compare gettype( $edit ) and gettype($_SERVER['REQUEST_TIME'])
2. not sure what $timefromdb will be more then $_SERVER['REQUEST_TIME'], because IMHO when user edited data, time of it action will me less then current time.
I've been struggling to get an exact answer for this question. There are many that are close to what I'm wanting but seem to still be just off. The application of this is to ensure that a booking can't be made for a past date.
I have a form which has an input for time & another for date. Firstly, I wan't to take both of these inputs & convert them to a timestamp.
This code returns nothing
$time_date = sprintf("%s %s", $pDate, $pTime);
$objDate = DateTime::createFromFormat('H:ia d/m/Y', $time_date);
$stamp = $objDate->getTimestamp();
echo $stamp;
So I've have tried using something like this
$pDate = $_POST['pDate'];
$pTime = $_POST['pTime'];
$full_date = $pDate . ' ' . $pTime;
$timestamp = strtotime($full_date);
echo $timestamp;
But for some reason it is returning an incorrect timestamp. (i've been using an online converter) 02/06/2014 as date & 12:23am as time, is not 1401625380. This according to the converter is Sun, 01 Jun 2014 12:23:00 GMT.
Does someone have working code for returning a timestamp of both time & date inputs?
Secondly I want to compare this timestamp with a specified one & check to see if it is greater than. I've created a timestamp for my timezone with this
$date = new DateTime(null, new DateTimeZone('Pacific/Auckland'));
$cDate = $date->getTimestamp();
echo $cDate;
and will simply have an if statement which compares the two and echos the appropriate message.
I feel as though there are multiple question on here that are ALMOST what I'm wanting to achieve but I can't manage to get them working. Apologies for the near duplicate.
Note: I'm using ajax to post form data (if this could possibly interfere).
Your second code snipped is correct. Assuming it's in datetime format (Y-m-d H:i:s).
From php manual about strtotime():
Each parameter of this function uses the default time zone unless a time zone is specified in that parameter.
Check your PHP default time zone with date_default_timezone_get() function.
To compare two dates, be sure they both are in same time zones.
For datetime inputs I personally use jQuery UI timepicker addon.
you receiving the time and date in string format - so i don't believe the ajax can interfere.
as for your question:
first of all - find out what is the locale timezone of your server. you can do it by this function: date_default_timezone_get.
if the answer doesn't suit you - you can use its "sister": date_default_timezone_set, and change it to whatever value you need (like 'Pacific/Auckland' - see the documentation there). it is also recommended to return it to the original value after you finish your stuff.
i believe fixing your locale timezone will solve your issue.
Hi everyone im stuck with this: I want to erase records on a database that are in the past. I just want to get into account Month and Day. For example, if the database record is (this is how is formatted on the DB) "Apr 5 2013" i need to compare it with today's date "Apr 6 2013". In this case, this record gets deleted. I´ve seen examples using UNIX timestamp, but none using that format using the date('M j Y'). Thanks!
The better way to store dates in databases is using DATE or DATETIME format. SQL allows you to get all informations you want from those types. But a request like this should work.
You could do it eventually with a regular expression, but it would be very heavy...
But you can do it in PHP, getting all results, then browsing them and comparing dates using something like strtotime, and then deleting every ID. Still very heavy but easier to implement than within a SQL request. But it still would be better if you could change the SQL architecture.
The approach I would try would be to convert the english text string into a unix timestamp using strtotime() then compare the new timestamp to the current date. Here is some php pseudo-code that describes the approach.
$threshold_to_deletion = numbers of days old a record is allowed to be;
$is_it_yesterday = 0;
$current_date = new DateTime();
$current_date->getTimestamp();
if ( !($is_it_yesterday = strtotime($str_from_db)) === false ) {
$date_interval = date_diff($is_it_yesterday, $current_date);
if( $date_interval >= $threshold_to_deletion ) {
Do stuff here to delete
}
} else {
echo "DB string is not a valid date: $str_from_db";
}
Please note it is not finished or tested, it's just there to loosely describe how it would be done. I hope this helps.
Tim Dumas
www.mpact-media.com