A simple calender

Anon

Greetings,
I'm new to PHP and am looking to make a simple calender for the month of Febuary.

This is the closest I can come:

<?php #Calender ?>
<?php #counts 1 - 7 then breaks?>
<?php
for ($i = 1 ;;$i++) {
if ($i > 7) {
break;
}
print " 0";
print $i;
}
?>
 
<?php #counts 8 - 9 then breaks?>
<?php
for ($i = 8 ;;$i++) {
if ($i > 9) {
break;
}
print " 0";
print $i;
}
?>
<?php #counts 10 - 14 then breaks?>
<?php
for ($i = 10 ;;$i++) {
if ($i > 14) {
break;
}
print " ";
print $i;
}
?>
 
<?php #counts 15 - 21 then breaks?>
<?php
for ($i = 15 ;;$i++) {
if ($i > 21) {
break;
}
print " ";
print $i;
}
?>
 
<?php #counts 22 - 28 then breaks?>
<?php
for ($i = 22 ;;$i++) {
if ($i > 28) {
break;
}
print " ";
print $i;
}
?>
 
<?php #counts 29 then breaks?>
<?php
for ($i = 29 ;;$i++) {
if ($i > 29) {
break;
}
print " ";
print $i;
}
?>

Looking thru various calender scripts already out there I don't see much code liek this so I'm assuming theres a better way to do it.

Is there a Calender or Cal function in PHP?

Thanks for any help,
Brian Wright
Lump_16@hotmail.com

Anon

Definately look at the existing calendar scripts out there. You will want a method that automatically generates the calendar based on month and year input so you don't have to manually build each month.

Anon

I looked at diffrent scripts adn this is close to if not excatly what I want:

<?php
$x=exec( "cal ",$a,$retVal);

$strOutput =nl2br(join($a, "\n"));

for($i=1;$i<strlen($strOutput);$i++){
$onechar=substr($strOutput,$i,1);

if ($onechar==chr(32)) {
echo " ";
} else {
echo $onechar;
}
}
?>

I tried looking up some of the commands on the PHP.net site but couldn't find much.

It's not totally foreign to me but enough that I don't know what's going on.

Can you point out what each line does?

Thanks for your tiem,
Brian Wright

Anon

All of these functions are documented in the manual. This particular script excecutes the command line cal function, which gives the calendar. Take a look at the date and time functions under PHP, you'll have more versatility that way.

Anon

I looked up the calender command but all Ic ould find was stuff about the gregorian and Julian calender and converting them or somthing.

Where do I find info on the Cal function, as it's stated in the code I found?

If theres already a Calender function, then why would I use the date/time commands?

Thanks,
Brian Wright

Anon

The cal function is not a PHP function. It is a unix command. The PHP exec() function makes command line calls. The stuff you want to look at in the manual are date and time functions. It's there in the doc index.

Anon

Allright I went thru the date/time commands again but I still can't figure out a better way to increment my days.

And I also don't know how to synchornize the days with the proper days of the week, so I'd have 01 starting on a thrusday with blank spots for the previous days:

<?php
$day = date("d", mktime (0,0,0,2,1,2001));

for ($day = 1 ;;$day++) {
if ($day > 7) {
break;
}
print " 0";
print $day;
}
?>
 
<?php #counts 8 - 9 then breaks?>
<?php
for ($day = 8 ;;$day++) {
if ($day > 9) {
break;
}
print " 0";
print $day;
}
?>
<?php #counts 10 - 14 then breaks?>
<?php
for ($day = 10 ;;$day++) {
if ($day > 14) {
break;
}
print " ";
print $day;
}
?>
 
<?php #counts 15 - 21 then breaks?>
<?php
for ($day = 15 ;;$day++) {
if ($day > 21) {
break;
}
print " ";
print $day;
}
?>
 
<?php #counts 22 - 28 then breaks?>
<?php
for ($day = 22 ;;$day++) {
if ($day > 28) {
break;
}
print " ";
print $day;
}
?>
 
<?php #counts 29 then breaks?>
<?php
for ($day = 29 ;;$day++) {
if ($day > 29) {
break;
}
print " ";
print $day;
}
?>

Thanks,
Brian Wright

Anon

Here's a chunk of code from my calendar script. This generates a small calendar for a single month previous to current month. So right now will generate Dec 2000. My calendar has one large display with the current month with events, and a small previous and next month calendar. (I hope I got all the code needed, but it should at least give you ideas, and addresses the how to get which day of the week to start on).

/ Figure out what month it is, convert the number to words, and then create
a table with days of the week headers, generate mini calendars for prev and next months /
echo "<table border='0' cellpaddig='0' cellspacing='0' width='100%'><tr>";

/ previous month mini cal /
echo "<td width=20%><table border=1><tr><th colspan=7>";
$ptDate = mktime(0,0,0,$pmonth,1,$pyear);

$lm = $month - 1;
$ly = $year - 1;
if ($month == '01') {
echo "<a href='index.phtml?month=12&year=$ly'>";
echo date('F', $ptDate) .", $pyear</a></th></tr><tr>\n";
echo "</a>";
} elseif ($month > 1 AND $month < 11) {
echo "<a href='index.phtml?month=0$lm&year=$year'>";
echo date('F', $ptDate) .", $pyear</a></th></tr><tr>\n";
echo "</a>";
} else {
echo "<a href='index.phtml?month=$lm&year=$year'>";
echo date('F', $ptDate) .", $pyear</a></th></tr><tr>\n";
}
echo "<td class=Q>S</td>";
echo "<td class=Q>M</td>";
echo "<td class=Q>T</td>";
echo "<td class=Q>W</td>";
echo "<td class=Q>T</td>";
echo "<td class=Q>F</td>";
echo "<td class=Q>S</td></tr>";
echo "<tr>";
while ($pday<$pdate):

/ Figure what day of the week the first falls on and set the number of
preceding and trailing cells accordingly /
if ($pday == '01') {
$poff = date('w',mktime(0,0,0,$pmonth,$pday,$pyear));
for ($pi=0; $pi<$poff; $pi++)
echo "<td></td>\n";
$poff++;
}

if ($ver >= 4) {
echo "<td CLASS=QX valign='top'>$pday \n";
echo "</td>";
} else {
echo "<td valign='top'>$pday \n";
echo "</td>";
}
/ Increment the day and the cells to go before the end of the row and end the
row when appropriate /
$pday++;
$poff++;

if ($poff>7) {
echo "</tr><tr>";
$poff='01';
} else {
echo "";
}

endwhile;
echo "</tr></table>

Anon

Do I have to use tables if I want to put my first day under the correct day of the week?

Adding tables to the code jsut amkes it harder for me to follow.

Thanks,
Brian Wright

Anon

Nope, you could conceivable just use spacing, but it wouldn't align properly on all browsers because of different font settings, browser handling etc...

Just take out the table tags, add a to replace all of the </tr> and it should work.