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  Classes of philippe thomassigny  >  DomCore  >  examples/singleton.php  >  Download  
File: examples/singleton.php
Role: Example script
Content type: text/plain
Description: New example
Class: DomCore
Base library for PHP Web applications
Author: By
Last change: patch 1.01.02
Date: 2 years ago
Size: 1,833 bytes
 

Contents

Class file image Download
<?php
  
// have to put this into a php block or the <?xml will be put as a PHP syntax error on extended code escape
  
echo '<?xml version="1.0" encoding="UTF-8"?>';
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
  <!-- Generic browser family -->
  <title>DomCore Demos, a WebAbility&reg; Network Project</title>
  <meta http-equiv="PRAGMA" content="NO-CACHE" />
  <meta http-equiv="Expires" content="-1" />

  <meta name="Keywords" content="WAJAF, WebAbility" />
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
  <meta name="Charset" content="UTF-8" />
  <meta name="Language" content="en" />
  <link rel="stylesheet" href="/skins/css/domcore.css" type="text/css" />

</head>
<body>

<div class="container">

<a href="../index.html" class="back">&#xAB; Back to the index</a><br />
<br />

<h1>Singleton example</h1>

<?php

// We assure any DomCore library we call will be automatically loaded
include_once '../include/__autoload.lib';

setlocale(LC_ALL'es_MX.UTF8');
date_default_timezone_set('America/Mexico_City');

define ('WADEBUG'false);

class 
myS extends Singleton
{
  function 
__construct()
  {
    
parent::__construct();
  }

  function 
getData()
  {
    return 
1;
  }
}

print 
"Let's get our singleton:<br />";

$S Singleton::getInstance('myS');
// This is totally equivalent to:
$S myS::getInstance();

print 
"A result with our singleton: ".$S->getData() . "<br />";

print 
"Let's try to duplicate our singleton and get an error:<br />";

$S2 = new myS();
// this can make an error too:
$S2 = clone $S;


?>

<br />
<br />
<br />
<br />

<a href="../index.html" class="back">&#xAB; Back to the index</a><br />

</div>

</body>
</html>