On this day ... one PHP script with three uses

What happened on this day in previous years? What events in history, and what was the subject of this blog? As part of a demonstration (of caching), I wrote an example script that constructed a report ... but then I wanted to use it in various ways. As a demonstration page in its own right. As a text data feed available for use elsewhere. And as a file that can be included within other files.

In PHP, the header function lets you reset the MIME type that your script returns - the file extension you use only sets the default and that can be easily overridden.

Here's the code at the end of the demonstration which selects what to return, based on request parameters in the URL:

if (! $_REQUEST[silent]) {

  if ($_REQUEST[feed]) {

    header("Content-type: text/plain");

    print ($tout);

  } else {

?>

<html>

<head>

<title>On this day ...</title>

</head>

<body>

<h1>On this day ... what was I blogging and what happened 

in recent years?</h1>

<table cellpadding="4" border="0"><?= $hout ?></table>

</body>

</html>

<?php }} ?>

Here are examples of the three calls used:
  http://www.wellho.net/demo/onthisday.php [try]
  http://www.wellho.net/demo/onthisday.php?feed=100 [try]
  http://www.wellho.net/demo/onthisday.php?feed=100&silent=1 (No link - empty page!)

The final URL is an example of how the same page can be set up for use within another page on your website, via a PHP require or include. I have used it to generate data fo fill in our standard template for an "on this day" page which you can visit [here] via the URL http://www.wellho.net/net/onthisday.html .
(written 2011-09-26, updated 2011-09-27)

Associated topics are indexed under

H307 - PHP - Web2 and caching
  [4075] Further recent PHP examples - (2013-04-28)
  [4055] Using web services to access you data - JSON and RESTful services - (2013-03-29)
  [3999] Handling failures / absences of your backend server nicely - (2013-02-08)
  [3955] Building up from a small PHP setup to an enterprise one - (2012-12-16)
  [3186] How to add a customised twitter feed to your site - (2011-02-27)
  [3094] Setting your user_agent in PHP - telling back servers who you are - (2010-12-18)
  [3029] PHP data sources - other web servers, large data flows, and the client (browser) - (2010-11-04)
  [2545] Scraping content for your own page via PHP - (2009-12-21)
  [2321] Uploading and Downloading files - changing names (Perl and PHP) - (2009-08-04)
  [2196] New Example - cacheing results in PHP for faster loading - (2009-05-24)
  [1995] Automated server heartbeat and health check - (2009-01-16)
  [1926] Flash (client) to PHP (server) - example - (2008-12-06)
  [1814] Javascript/HTML example, dynamic server monitor - (2008-09-28)
  [1813] Ajax - going Asyncronous and what it means - (2008-09-28)
  [1812] Starting Ajax - easy example of browser calling up server data - (2008-09-27)
  [1733] memcached - overview, installation, example of use in PHP - (2008-08-02)
  [1647] Exchange Rates - PHP with your prices in your users currency - (2008-05-19)
  [1633] Changing a screen saver from a web page (PHP, Perl, OSX) - (2008-05-06)

540c

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Catching the fishes first?

Some other Articles

Hangers, luggage and possessions
From flowchart to program - code design for the newcomer
Flying Colours!
Catching the fishes first?
On this day ... one PHP script with three uses
Away to train - but still around by video for Melksham meetings
Stepping stones - early coding, and writing re-usable code quickly
MySQL, MySQLi, PDO or something else - how best to talk to databases from PHP
Your PHP website - how to factor and refactor to reduce growing pains
Reading and using emails including enclosures on your web server.

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This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

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