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array order depending from day

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Apr 06.2009

I’m gonna add to my site couple of messages stored in array and I like to they show in exact order, different for every another day. Let’s say I’ll have 10 messages and one day I want to they be in order from 1st to last:

[I]message 1
message 2
…
message 10[/I]

Another day:

[I]message 10
message 1
…
message 9[/I]

Day after another day:

[I]message 9
message 10
…
message 8[/I]

and so on (in cycle).

I need to those messages update when date is change – every day last array entry be show as 1st array.

Any example how to make it, please?

to post a comment
PHP

6 Comments(s) ↴

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@NogDogApr 06.2009 — One possibility (sequence may jump a bit between Dec. 31 and Jan. 1):
[code=php]
<?php
$messages = array(
'one',
'two',
'three',
'four',
'five',
'six',
'seven',
'eight',
'nine',
'ten'
);
$numMsg = count($messages);
$day = date('z');
$num = $day &#37; $numMsg;
for($i=$num; $i < $numMsg; $i++)
{
echo "<p class='message'>".$messages[$i]."</p>n";
}
if($num != 0)
{
for($i = 0; $i < $num; $i++)
{
echo "<p class='message'>".$messages[$i]."</p>n";
}
}
[/code]
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@AnnaccondauthorApr 06.2009 — Thank you very much, I'll try it ?

EDIT:

I got some error in line "$num = $day &#37; $numMsg;" I removed "&#37" and now messages show in order 1 - 10 but I don't know will they rotate tomorrow. I don't understand also how this part of script: "$day = date('z');" works.
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@DasherApr 06.2009 — I do it quite similarly;

[code=php]
$quotes = array(
'one',
'two',
'three',
'four',
'five',
'six',
'seven',
'eight',
'nine',
'ten'
);

$numinarray = count($quote); // auto increase the modulus as quotes added.

$selected_quote = date ("z") % $numinarray; // modulus divider = number of elements in array. z is day of the year

$quote = stripcslashes($quote[$selected_quote]);

echo "$quote";[/code]
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@AnnaccondauthorApr 06.2009 — I gave a try Dasher's version but it shows error as well:

Warning: Division by zero in
[CODE]$selected_quote = date ("z") % $numinarray;[/CODE]

Any idea why? Maybe because of "%" ?
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@NogDogApr 06.2009 — I don't know why my code showed that & #37;, but it should have been just a percent sign (for modulus).
[code=php]
$num = $day%$numMsg;
[/code]
As to your question, [b]date('z')[/b] gets the current day of the year (0 - 365).
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@AnnaccondauthorApr 07.2009 — Now it seems to work. Thank you NogDog ?
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