PHP equivalent of Date.UTC function in javascript?

Question

I'm fetching dates from MySQL as strings (Y-m-d format). I need to display a chart using Highcharts. Highcharts uses javascript Date.UTC function:

Return the number of milliseconds between a specified date and midnight January 1 1970.

data: [
    [Date.UTC(1970,  9, 27), 0   ],
    [Date.UTC(1970, 10, 10), 0.6 ],
    [Date.UTC(1970, 10, 18), 0.7 ],
    [Date.UTC(1970, 11,  2), 0.8 ],
    [Date.UTC(1970, 11,  9), 0.6 ],

But i'd like to avoid javascript and do in in PHP (assigning a JSON object - the chart - to the page itself). What's the equivalent of Date.UTC function in PHP (regardless the server datezone)?

$date      = '2012-07-07';
$millisecs = 1000 * unix_timestap_utc_regardless_server_zone($date);

From PHP to JS, put this in a variable: date('Y, n-1, j-1', strtotime($date)); and echo out Date.UTC($var) — Vael Victus
– Vael Victus, Commented Mar 26, 2020 at 21:26

comp500 · Accepted Answer · 2012-07-07 11:09:49Z

2

I would use

date_default_timezone_set('UTC');    
$today = date(getdate());

That would set $today as the date.

EDIT: Niclas is also right, this is just how I would do it.

EDIT 2: You can replace getdate() with a valid timestamp in PHP, if you like...

EDIT 3: Sorry... Misunderstanding... use strtotime() to make a valid timestamp!

edited Jul 7, 2012 at 11:09

answered Jul 7, 2012 at 11:01

comp500

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Niclas Larsson · Accepted Answer · 2012-07-07 10:57:57Z

1

You can look at this:

http://php.net/manual/en/function.mktime.php

http://php.net/manual/en/function.strtotime.php

http://php.net/manual/en/function.date.php

answered Jul 7, 2012 at 10:57

Niclas Larsson

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2 Comments

user1098965 Over a year ago

Thanks. But (for example) strtotime is going to use the time zone specified in my PHP.ini, right?

Puggan Se Over a year ago

strtotime is only going to use defult timezone if you dosn't provide one your self, like strtotime("00:00:00 UTC")

Simone Dagli Orti · Accepted Answer · 2017-03-24 10:24:43Z

0

Obtain the PHP Timestamp and then convert into Javascript Timestamp with a multiplication

$phpTimestamp = $dateObject->getTimestamp();
$javascripTimestamp = $phpTimestamp * 1000;

answered Mar 24, 2017 at 10:24

Simone Dagli Orti

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