Online PHP editor | rfc for 6daZo

@ 2020-11-06T14:56:30Z

<?php

$daynames = array("Sonntag", "Montag", "Dienstag", "Mittwoch", "Donnerstag", "Freitag", "Samstag");

$dayW = date("w");



echo "## 1) First method : just tweaking your code" . PHP_EOL . PHP_EOL;
echo $daynames[$dayW % 7] . PHP_EOL;
echo $daynames[($dayW +1) % 7] . PHP_EOL;
echo $daynames[($dayW +2) % 7] . PHP_EOL;
echo $daynames[($dayW +3) % 7] . PHP_EOL;
echo $daynames[($dayW +4) % 7] . PHP_EOL;
echo $daynames[($dayW +5) % 7] . PHP_EOL;
echo $daynames[($dayW +6) % 7] . PHP_EOL;

echo PHP_EOL . "## 2) Second method : a slightly more sophisticated example using a handy user-defined function" . PHP_EOL . PHP_EOL;

function getDaynameAfterCountDays(int $dayOfWeek, int $countDaysAfter = 0) 
{

	$daynames = array("Sonntag", "Montag", "Dienstag", "Mittwoch", "Donnerstag", "Freitag", "Samstag");
	
	// 0) Preliminary checks to implement
	// $dayOfWeek must be an int value between 0 and 6 included
	// $countDaysAfter must be a positive int (>= 0)
	
	return $daynames[($dayOfWeek + $countDaysAfter) % 7];

}

$currentDayName = $daynames[$dayW];
for($i = 0; $i < 7 ; $i++)
{
	echo $currentDayName . ' +' . $i . ' day(s) --> ' . getDaynameAfterCountDays($dayW, $i) . PHP_EOL;
}

Output for git.master, git.master_jit, rfc.property-hooks: ## 1) First method : just tweaking your code Freitag Samstag Sonntag Montag Dienstag Mittwoch Donnerstag ## 2) Second method : a slightly more sophisticated example using a handy user-defined function Freitag +0 day(s) --> Freitag Freitag +1 day(s) --> Samstag Freitag +2 day(s) --> Sonntag Freitag +3 day(s) --> Montag Freitag +4 day(s) --> Dienstag Freitag +5 day(s) --> Mittwoch Freitag +6 day(s) --> Donnerstag

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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