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PHP date_interval_format() Function

PHP Date/Time PHP Date/Time Reference

Example

Calculate the interval between two dates, then format the interval:

<?php
$date1=date_create("2013-01-01");
$date2=date_create("2013-02-10");
$diff=date_diff($date1,$date2);

// %a outputs the total number of days
echo $diff->format("Total number of days: %a.");
?>

Run example »

Definition and Usage

The date_interval_format() function is an alias of DateInterval::format().

The DateInterval::format() function is used to format the interval. 


Syntax

DateInterval::format(format);

Parameter Description
format Required. Specifies the format. The following characters can be used in the format parameter string:
  • % - Literal %
  • Y - Year, at least 2 digits with leading zero (e.g 03)
  • y - Year (e.g 3)
  • M - Month, with leading zero (e.g 06)
  • m - Month (e.g 6)
  • D - Day, with leading zero (e.g 09)
  • d - Day (e.g 9)
  • a - Total number of days as a result of date_diff()
  • H - Hours, with leading zero (e.g 08, 23)
  • h - Hours (e.g 8, 23)
  • I - Minutes, with leading zero (e.g 08, 23)
  • i - Minutes (e.g 8, 23)
  • S - Seconds, with leading zero (e.g 08, 23)
  • s - Seconds (e.g 8, 23)
  • R - Sign "-" when negative, "+" when positive
  • r - Sign "-" when negative, empty when positive

Note: Each format character must be prefixed by a % sign!

Technical Details

Return Value: Returns the formatted interval
PHP Version: 5.3+

PHP Date/Time PHP Date/Time Reference

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