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Getting A Date - PHP

Like most programming languages, PHP comes with a fairlyfull-featured API for date and time value manipulation. You've probablyused it in your applications, but never bothered to look too closely atit. Well, here's your chance to rectify that mistake - this articledelves into the date/time API in depth, uncovering some hidden nuggetsand demonstrating how it can be used to simplify date and timeprocessing in your PHP scripts.

TABLE OF CONTENTS:
  1. Date/Time Processing with PHP
  2. Getting A Date
  3. A Stamp In Time...
  4. Race Against Time
  5. When Looks Do Matter
  6. Checking Up
  7. Turning The Tables
By: The Disenchanted Developer, (c) Melonfire
Rating: starstarstarstarstar / 14
March 19, 2002

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First up, before we get into anything too complicated, let's take a quick tour of the important date and time manipulation functions that come with PHP 4.1.
The simplest and most basic thing you'll want to do with PHP's date API is, obviously, get the current date and time. This is best accomplished via the getdate() function, which returns an associative array containing date and time information.

Here's an example:
<?
// get current date information as associative array
$current = getdate();
// print it
print_r($current);
?>
Here's what the output would look like:
Array
(
[seconds] => 7
[minutes] => 19
[hours] => 9
[mday] => 20
[wday] => 3
[mon] => 2
[year] => 2002
[yday] => 50
[weekday] => Wednesday
[month] => February
[0] => 1014176947
)
This information can easily be manipulated and massaged into whatever format you like. For example,

<? // get current date $current = getdate(); // turn it into strings $current_time = $current["hours"] . ":" . $current["minutes"] . ":" . $current["seconds"]; $current_date = $current["mday"] . "." . $current["mon"] . "." . $current["year"]; // print it // this would generate output of the form "It is now 9:14:34 on 23.5.2001" echo "It is now $current_time on $current_date"; ?>
You can also give getdate() a timestamp, and have it convert that timestamp into an array for you. Consider the following example, which sends getdate() a UNIX timestamp for the date December 25 2001, and gets the information back as a much easier-to-read array:

<? print_r(getdate(1009218600)); ?>
The output is:

Array ( [seconds] => 0 [minutes] => 0 [hours] => 0 [mday] => 25 [wday] => 2 [mon] => 12 [year] => 2001 [yday] => 358 [weekday] => Tuesday [month] => December [0] => 1009218600 )
How did I create the timestamp? Flip the page to find out.

 
 
>>> More PHP Articles          >>> More By The Disenchanted Developer, (c) Melonfire
 

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