Get timestamps for beginning and end of last seven days - php

Question

I am trying to output this in PHP as a UNIX timestamp instead:
05-30-2014 0:00:00
05-30-2014 23:59:59
05-29-2014 0:00:00
05-29-2014 23:59:59
05-28-2014 0:00:00
05-28-2014 23:59:59
05-27-2014 0:00:00
05-27-2014 23:59:59
05-26-2014 0:00:00
05-26-2014 23:59:59
05-25-2014 0:00:00
05-25-2014 23:59:59
05-24-2014 0:00:00
05-24-2014 23:59:59
This should be dynamic, and always show the previous seven days.
So, I am trying to get the start, and end, of each of the last seven days as a timestamp.
I was able to get the dates to output, but when including times and converting to timestamps I think it is getting messed up.
EDIT
I have this so far, which gets me the correct starting date and times, but this needs to be converted to a timestamp.
$timestamp = time()- 3600 * 24;
for ($i = 0 ; $i < 7 ; $i++) {
echo date('Y-m-d 00:00:00', $timestamp) .'<br />';
echo date('Y-m-d 23:59:59', $timestamp) .'<br />';
$timestamp -= 24 * 3600;
}
When I try changing it to a timestamp, and then use an online converter to reverse the timestamp it's always off by 5 hours. For example, I took the timestamp for midnight of a given date, and checked it in the online converter to see if it was correct, but it was saying 5am instead of midnight.

Answer 1

$date = new DateTime();
for($i = 0; $i < 7; $i++) {
$date->modify("last day");
$date->setTime(0,0,0);
echo $date->getTimestamp() . "<br/>\n";
$date->setTime(23,59,59);
echo = $date->getTimestamp() . "<br/>\n";
}
edit
If you want to have a specific timezone anyway, then change my first line above into:
$date = new DateTime("now", new DateTimeZone("Europe/Amsterdam"));
And set your desired timezone in stead of Europe/Amsterdam.
edit 2
Your own code that you have put in your own edit isn't that bad. You just needed to add strtotime() to turn your date string into a timestamp:
$timestamp = time()- 3600 * 24;
for ($i = 0 ; $i < 7 ; $i++) {
echo strtotime(date('Y-m-d 00:00:00', $timestamp)) .'<br />';
echo strtotime(date('Y-m-d 23:59:59', $timestamp)) .'<br />';
$timestamp -= 24 * 3600;
}
And don't be scared of what an online converter says. The online converter could be in a different timezone.

Answer 2

$start_timestamp = mktime(0, 0, 0, date("m"), date("d"), date("y"));
$end_timestamp = $start_timestamp+86399;
//run it 7 times
for ($x=0; $x<7; $x++) {
$start_timestamp = (int) $start_timestamp - 86400;
$end_timestamp = $start_timestamp+86399;
echo $end_timestamp."<br />".$start_timestamp."<br />";
}