1--TEST-- 2Test gmdate() function : usage variation - Passing numeric representation of day formats. 3--FILE-- 4<?php 5echo "*** Testing gmdate() : usage variation ***\n"; 6 7// Initialise all required variables 8date_default_timezone_set('UTC'); 9$timestamp = mktime(8, 8, 8, 8, 8, 2008); 10 11//array of values to iterate over 12$inputs = array( 13 14 'Day with leading zeros' => 'd', 15 'Day without leading zeros' => 'j', 16 'ISO representation' => 'N', 17 'Numeric representation of day' => 'w', 18 'Day of the year' => 'z' 19); 20 21// loop through each element of the array for timestamp 22 23foreach($inputs as $key =>$value) { 24 echo "\n--$key--\n"; 25 var_dump( gmdate($value) ); 26 var_dump( gmdate($value, $timestamp) ); 27}; 28 29?> 30--EXPECTF-- 31*** Testing gmdate() : usage variation *** 32 33--Day with leading zeros-- 34string(%d) "%d" 35string(2) "08" 36 37--Day without leading zeros-- 38string(%d) "%d" 39string(1) "8" 40 41--ISO representation-- 42string(%d) "%d" 43string(1) "5" 44 45--Numeric representation of day-- 46string(%d) "%d" 47string(1) "5" 48 49--Day of the year-- 50string(%d) "%d" 51string(3) "220" 52