help me with mktime please

[tomasd]

Hi,

I'm not sure what am I doing wrong here...

<?php
$start_day = "01";
$start_month = "01";
$start_year = "2007";
$end_day = "10";
$end_month = "01";
$end_year = "2007";

$start_date = date('Ymd', mktime(0, 0, 0, $start_month, $start_day, $start_year));
$end_date = date('Ymd', mktime(0, 0, 0, $end_month, $end_day, $end_year));

for ($i = $start_date; $i < $end_date; $i++)
{
echo "$i \n";
$newdate = date('c', $i);
echo "$newdate \n";
}
?>

I was expecting to see $i incremented by day for both $i and $newdate but I'm getting following instead...

 

20070101

1970-08-21T07:01:41+00:00

20070102

1970-08-21T07:01:42+00:00

20070103

1970-08-21T07:01:43+00:00

20070104

1970-08-21T07:01:44+00:00

20070105

1970-08-21T07:01:45+00:00

20070106

1970-08-21T07:01:46+00:00

20070107

1970-08-21T07:01:47+00:00

20070108

1970-08-21T07:01:48+00:00

20070109

1970-08-21T07:01:49+00:00

 

What am I doing wrong?

 

Any help appreciated!

 

[BlueSkyIS]

mktime() takes integer values. "01" might be messing it up. quoted strings might be messing it up, but i doubt it. probably the 01, it's not an integer.

[discomatt]

This would be much easier

 

$start = mktime(0, 0, 0, $start_month, $start_day, $start_year);

$end = mktime(0, 0, 0, $end_month, $end_day, $end_year);

 

for ($i = $start; $i <= $end; $i += 86400) {

  echo "$i \n";

  $newdate = date('c', $i);

  echo "$newdate \n";

}

 

86400 is the amount of seconds in a day (60 * 60 * 24)

[discomatt]

mktime() takes integer values. "01" might be messing it up. quoted strings might be messing it up, but i doubt it. probably the 01, it's not an integer.

 

PHP isn't strict with variable types. A numeric string can be interpreted as an int/float/double ect... His problem was trying to call date with a 'yyyymmdd' formatted string, and not a timestamp.

[BlueSkyIS]

yes, good point and thanks for clarification on "01" vs. 1.

[tomasd]

yeah, exactly I don't want all that garbage passed on, only date 

Also note the date it says 1970, it starts unix timestamp from the beginning and runs for the number of days incrementing it by second...