[Issue With Daylight Saving Time]

Thanks a lot for the reference to the manual, even though I need some time to master expressions like "new DateTime" or "DateInterval". Is this related to OOP? Or in the "QuickPro" guide?...

[Issue With Daylight Saving Time]

I'm having the following issue to build-up a liturgical calendar; the mistake is related to the daylight saving time, which adds 1h and makes my whole construction invalid:

<?php
	$date = strtotime('09-05-2013');
	echo "Date: ".$date."<br />";
	// May 9th, 2013 is the effective date of Ascension

	//The year can be easily extracted from the date
	$year = date('Y', $date);
	echo "Year: ".$year."<br />";

	// The date of Easter can be easily extracted thanks to the corresponding php-native "easter_date" function
	$easter = easter_date($year);

	// The ascension is 39 days after Easter
	$ascension = ($easter + (39*86400));
	echo "Ascension: ".$ascension."<br />";

	if ($date == $ascension) {
		echo "It's Ascension";
	} else {
		echo "There is a mistake in the code"; }
?>

 

The problem is: the date of 09-05-2013 gives a string which is 3600 sec. more than the calculated value based on Easter.

What can I do to define correctly the $ascension value from Easter, knowing that the daylight saving change does not always occur every year between Easter and Ascension?

 

[The Importance Of "Http://" Prefix]

I was posting a question on this forum when I found the fix to my problem! Now, I propose to share it with our community.

 

Let's say that I have 2 php pages on my web site:

• page1.php
• page2.php

On page1.php, I make a link to page2.php through the $_GET method:

localhost:8888/page2.php?id=6&name=tintin

When I try to access page2.php through this link, Safari tells me that opening the page is impossible.

I get the same error message when I reload it.

 

If I copy this link and I paste it again in the url box of Safari, the page opens normally and the $_GET values are captured normally as well. I found it crazy as the same url appears in Safari.

 

I found the explanation thanks to Firefox: when I copy the url and paste it, Firefox adds the prefix http://:

http://localhost:8888/page2.php?id=6&name=tintin

And that makes all the difference!

 

Of course, the fix is now easy: instead of defining the link as "localhost...", simply define it as "http://localhost..."

 

Not less surprising is the Chrome behavior, which simply does not accept the link "localhost" without the prefix http://.

 

I wonder whether this issue is described somewhere in the book?...

 

[Link Php/Mysql/Cms]

After having almost finished learning the "Quickstart" version of the book, I recently bought the "Quickpro".

 

I just had a look at the index, and I'm a little bit surprised not to find any mention of CMS as a widespread application of php/mySQL.

 

Can you recommend a book dealing with this topic? Something like "Understand WordPress php/mySQL background"

[Confused With Slash And Backslash]

I'm very surprised: I recently received php code written on a PC with a link containing backslash:

<?php 
	include_once('include\dbConnect.php');
?>
(...)

This code didn't work (the table content was not displayed). Once I replaced the backslash with slash, the code worked again well.

 

Maybe obvious for most of you, but it is something I had never heard about!

 

Now, I wonder what the "slashed" code would give on a PC?

[Date And Php]

Thanks a lot! At this time, the shortest one for my purpose is the following:

$year = substr($date,-4);

In the future, I'll further consider alternatives.

[Date And Php]

I would like to retreive the year from a date I enter (and which is not necessarily the date of the day!).

For instance, I enter something like

"$date = '15-09-2010';"

 

How can I retrieve "2010" from this declaration?