Date Problem - date("N")

[kumschick]

Hello,

I have a big problem, with a formula I want to write down. I can't, cause I don't
know at all how to start!

I want to get the todays numeric representation of the day of the week [date("N")] and than add or substract a number +1 for each other day.

If today=date("N") then $get_newday= 0

exemple:

$Today = Friday = 0

Monday = -4
Tuesday = -3
Wednesday =-2
Thursday = -1
Friday = 0
Saturday = 1
Sunday = 2

currently I have only this:

$get_day = date("N");
$set_day['' . $get_day] = "0";

may someone help me?
thx for any help

[bpat1434]

What exactly are you trying to do?

EDIT

I came up with this:
Nevermind.... still working on it...

EDIT
Okay.. this works:

<?php
for($i=1; $i<8; $i++)
	echo $days[$i].' => '.(date('N', strtotime($days[$i]))-date('N')).'<br>';
?>

Outputs:

Monday => -2
Tuesday => -1
Wednesday => 0
Thursday => 1
Friday => 2
Saturday => 3
Sunday => 4

[kumschick]

I coded this and have still a big problem, when I change the date (click on Monday, ..., Sunday) the date desn't change correctly at all!!!!

I'm lost, could someone help me, please... :queasy:

...thx for any help...

Here is the code:

<?php

$get_day = date("N");
$get_date_day = date("d");
$get_date_mth = date("m");
$get_date_yea = date("Y");
if($getdate=="" | $getdate=="-1") {
  $set_day_bg['' . $get_day] = "bgcolor=\"$layout_list_color2\"";
}


if(empty($c)) {

  echo"Debug: IF THEN<br>";
  $get_date      = date("Y-m-d");
  $get_date_spec = explode("-",$get_date);
  $get_p_week = "0"; 
  $get_m_week = "0";

}
else {

  echo"Debug: ELSE<br>";
  $get_p_week = ($getdate+7); 
  $get_m_week = ($getdate-7); 
  $getweek       = time() + (($get_p_week) * 86400);
  $get_date      = date("Y-m-d",$getweek);
  $get_date_spec = explode("-",$get_date);

}


echo"
<table>
  <tr>
    <td><b>" . date("F d, Y", mktime (0,0,0,$get_date_spec[1],$get_date_spec[2],$get_date_spec[0])) . "</b>&nbsp;</td>
";

$i = 1;
$j = -$get_day;
while ($i <= 7):
   $j=$j+1;
   if(empty($c)) { $k = $get_p_week+$j-7; } else { $k = $get_p_week+$j-7; }

 echo"    <td " . $set_day_bg['' . $i] . "><a target=\"_self\" href=\"$PHP_SELF?getdate=$k&c=gw\">" . date("l", mktime (0,0,0,$get_date_mth,$get_date_day+$j,$get_date_yea)) . "</a></td>\n";
   $i++;
endwhile;

echo"
    <td><a target=\"_self\" href=\"$PHP_SELF?getdate=$get_m_week&c=gw\">&nbsp;-&nbsp;</a></td>
    <td><a target=\"_self\" href=\"$PHP_SELF?getdate=$get_p_week&c=gw\">&nbsp;+&nbsp;</a></td>
  </tr>
</table>
";

?>

[bpat1434]

Woops... forgot an integral part of my code!!

<?php
echo date('D F j, Y').'<br>';

$days = array(1=>'Monday',
							2=>'Tuesday',
							3=>'Wednesday',
							4=>'Thursday',
							5=>'Friday',
							6=>'Saturday',
							7=>'Sunday'
						);

for($i=1; $i<8; $i++)
	echo $days[$i].' => '.(date('N', strtotime($days[$i]))-date('N')).'<br>';

?>

Now, that seems to work properly for me..... you can always turn this into a function to return the values and then get the info you want.... or even return an array of information....

[kumschick]

yes, but when you change the date, it doesn't work! You just need to copy/paste the code into a new *.php page and open the browser. you will see that when you change the date by clicking on the links the + (plus) and - (minus) it works, but when you click on a day it changes the day BUT WHEN you click a 2nd. time on a day of the week you get strange stuff!

I don't know what's wrong!

[bpat1434]

i honestly have no idea what your final goal is, nor what you were trying to accomplish in your code....

Plus... there are plenty of errors in your code to start with. Look in your PHP log and debug errors first.

[scrupul0us]

<?php

$day = date("N"); // numeric 1-7

for ($i = 1; $i <=7; $i++)
{
$date[$i]=$i-$day;
}
print_r($date);

?>

for todays date yields:

Array ( [1] => -3 [2] => -2 [3] => -1 [4] => 0 [5] => 1 [6] => 2 [7] => 3 )

[bpat1434]

That's the original code I posted above.... but apparently not what the poster wants...

[kumschick]

Well I tryied your script bpat1434 and it's not that what i expected. I 'm sorry, so what I did I reposed it and this time I explained my self better.

What I have is a bug in my existing script and need help to find out a solution. http://phpbuilder.com/board/showthread.php?t=10321735

[Weedpacket]

$weekdays = array(
	'Monday'=>1,
	'Tuesday'=>2,
	'Wednesday'=>3,
	'Thursday'=>4,
	'Friday'=>5,
	'Saturday'=>6,
	'Sunday'=>7,
);

$today = date('N');
foreach($weekdays as $weekday=>$number)
	$weekdays[$weekday] = $number-$today;
print_r($weekdays);

Perhaps?