First commit

Code Download/Chapter 02/Code/business/error_handler.php

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+<?php
+class ErrorHandler
+{
+  // Private constructor to prevent direct creation of object
+  private function __construct()
+  {
+  }
+
+  /* Set user error handler method to ErrorHandler::Handler method */
+  public static function SetHandler($errTypes = ERROR_TYPES)
+  {
+    return set_error_handler(array ('ErrorHandler', 'Handler'), $errTypes);
+  }
+
+  // Error handler method
+  public static function Handler($errNo, $errStr, $errFile, $errLine)
+  {
+    /* The first two elements of the backtrace array are irrelevant:
+        - ErrorHandler.GetBacktrace
+        - ErrorHandler.Handler */
+    $backtrace = ErrorHandler::GetBacktrace(2);
+
+    // Error message to be displayed, logged, or mailed
+    $error_message = "\nERRNO: $errNo\nTEXT: $errStr" .
+                     "\nLOCATION: $errFile, line " .
+                     "$errLine, at " . date('F j, Y, g:i a') .
+                     "\nShowing backtrace:\n$backtrace\n\n";
+
+    // Email the error details, in case SEND_ERROR_MAIL is true
+    if (SEND_ERROR_MAIL == true)
+      error_log($error_message, 1, ADMIN_ERROR_MAIL, "From: " .
+                SENDMAIL_FROM . "\r\nTo: " . ADMIN_ERROR_MAIL);
+
+    // Log the error, in case LOG_ERRORS is true
+    if (LOG_ERRORS == true)
+      error_log($error_message, 3, LOG_ERRORS_FILE);
+
+    /* Warnings don't abort execution if IS_WARNING_FATAL is false
+       E_NOTICE and E_USER_NOTICE errors don't abort execution */
+    if (($errNo == E_WARNING && IS_WARNING_FATAL == false) ||
+        ($errNo == E_NOTICE || $errNo == E_USER_NOTICE))
+    // If the error is nonfatal ...
+    {
+      // Show message only if DEBUGGING is true
+      if (DEBUGGING == true)
+        echo '<pre>' . $error_message . '</pre>';
+    }
+    else
+    // If error is fatal ...
+    {
+      // Show error message
+      if (DEBUGGING == true)
+        echo '<pre>' . $error_message . '</pre>';
+      else
+        echo SITE_GENERIC_ERROR_MESSAGE;
+
+      // Stop processing the request
+      exit;
+    }
+  }
+
+  // Builds backtrace message
+  public static function GetBacktrace($irrelevantFirstEntries)
+  {
+    $s = '';
+    $MAXSTRLEN = 64;
+    $trace_array = debug_backtrace();
+
+    for ($i = 0; $i < $irrelevantFirstEntries; $i++)
+      array_shift($trace_array);
+    $tabs = sizeof($trace_array) - 1;
+
+    foreach ($trace_array as $arr)
+    {
+      $tabs -= 1;
+      if (isset ($arr['class']))
+        $s .= $arr['class'] . '.';
+      $args = array ();
+
+      if (!empty ($arr['args']))
+        foreach ($arr['args']as $v)
+        {
+          if (is_null($v))
+            $args[] = 'null';
+          elseif (is_array($v))
+            $args[] = 'Array[' . sizeof($v) . ']';
+          elseif (is_object($v))
+            $args[] = 'Object: ' . get_class($v);
+          elseif (is_bool($v))
+            $args[] = $v ? 'true' : 'false';
+          else
+          {
+            $v = (string)@$v;
+            $str = htmlspecialchars(substr($v, 0, $MAXSTRLEN));
+            if (strlen($v) > $MAXSTRLEN)
+              $str .= '...';
+            $args[] = '"' . $str . '"';
+          }
+        }
+
+      $s .= $arr['function'] . '(' . implode(', ', $args) . ')';
+      $line = (isset ($arr['line']) ? $arr['line']: 'unknown');
+      $file = (isset ($arr['file']) ? $arr['file']: 'unknown');
+      $s .= sprintf(' # line %4d, file: %s', $line, $file);
+      $s .= "\n";
+    }
+
+    return $s;
+  }
+}
+?>

Code Download/Chapter 02/Code/hatshop.css

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+body
+{
+  font-family: tahoma, verdana, arial;
+  font-size: 11px;
+  margin: 0px;
+  padding: 5px;
+  text-align: center;
+}
+body div
+{
+  margin: 0px;
+  padding: 5px;
+  text-align: left;
+}
+.left_box
+{
+  margin: 0px 15px 15px 0px;
+  padding: 2px;
+  width: 170px;
+}
+img
+{
+  border: 0;
+}
+#header
+{
+  left: 194px;
+  margin: 0px;
+  padding: 0px;
+  position: absolute;
+  text-align: right;
+  top: 10px;
+  width: 570px;
+}
+#content
+{
+  left: 194px;
+  margin: 0px;
+  padding: 0px 0px 10px 10px;
+  position: absolute;
+  top: 110px;
+  width: 558px;
+}

Code Download/Chapter 02/Code/include/app_top.php

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+<?php
+// Include utility files
+require_once 'include/config.php';
+require_once BUSINESS_DIR . 'error_handler.php';
+
+// Sets the error handler
+ErrorHandler::SetHandler();
+
+// Load the page template
+require_once PRESENTATION_DIR . 'page.php';
+?>

Code Download/Chapter 02/Code/include/config.php

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+<?php
+// SITE_ROOT contains the full path to the hatshop folder
+define('SITE_ROOT', dirname(dirname(__FILE__)));
+
+// Application directories
+define('PRESENTATION_DIR', SITE_ROOT . '/presentation/');
+define('BUSINESS_DIR', SITE_ROOT . '/business/');
+
+// Settings needed to configure the Smarty template engine
+define('SMARTY_DIR', SITE_ROOT . '/libs/smarty/');
+define('TEMPLATE_DIR', PRESENTATION_DIR . '/templates');
+define('COMPILE_DIR', PRESENTATION_DIR . '/templates_c');
+define('CONFIG_DIR', SITE_ROOT . '/include/configs');
+
+// These should be true while developing the web site
+define('IS_WARNING_FATAL', true);
+define('DEBUGGING', true);
+
+// The error types to be reported
+define('ERROR_TYPES', E_ALL);
+
+// Settings about mailing the error messages to admin
+define('SEND_ERROR_MAIL', false);
+define('ADMIN_ERROR_MAIL', '[email protected]');
+define('SENDMAIL_FROM', '[email protected]');
+ini_set('sendmail_from', SENDMAIL_FROM);
+
+// By default we don't log errors to a file
+define('LOG_ERRORS', false);
+define('LOG_ERRORS_FILE', 'c:\\hatshop\\errors_log.txt'); // Windows
+// define('LOG_ERRORS_FILE', '/var/tmp/hatshop_errors.log'); // Unix
+
+/* Generic error message to be displayed instead of debug info
+   (when DEBUGGING is false) */
+define('SITE_GENERIC_ERROR_MESSAGE', '<h2>HatShop Error!</h2>');
+?>

Code Download/Chapter 02/Code/include/configs/site.conf

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+site_title = "HatShop : Demo Site for Beginning PHP and PosgreSQL E-Commerce"

Code Download/Chapter 02/Code/index.php

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+<?php
+// Load Smarty library and config files
+require_once 'include/app_top.php';
+
+// Load Smarty template file
+$page = new Page();
+
+// Display the page
+$page->display('index.tpl');
+?>

Code Download/Chapter 02/Code/presentation/page.php

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+<?php
+// Reference Smarty library
+require_once SMARTY_DIR . 'Smarty.class.php';
+
+/* Class that extends Smarty, used to process and display Smarty
+   files */
+class Page extends Smarty
+{
+  // Class constructor
+  public function __construct()
+  {
+    // Call Smarty's constructor
+    parent::Smarty();
+
+    // Change the default template directories
+    $this->template_dir = TEMPLATE_DIR;
+    $this->compile_dir = COMPILE_DIR;
+    $this->config_dir = CONFIG_DIR;
+  }
+}
+?>

Code Download/Chapter 02/Code/presentation/templates/header.tpl

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+<div id="header">
+  <a href="index.php">
+    <img src="images/title.png" alt="Site title" />
+  </a>
+</div>

Code Download/Chapter 02/Code/presentation/templates/index.tpl

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+{* smarty *}
+{config_load file="site.conf"}
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
+ "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html>
+  <head>
+    <title>{#site_title#}</title>
+    <link href="hatshop.css" type="text/css" rel="stylesheet" />
+  </head>
+  <body>
+    <div>
+      <div class="left_box">
+        Place list of departments here
+      </div>
+      {include file="header.tpl"}
+      <div id="content">
+        Place contents here
+      </div>
+    </div>
+  </body>
+</html>

Code Download/Chapter 02/Code/test.php

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+<?php phpinfo(); ?>

Code Download/Chapter 02/Database/chapter02.sql

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+CREATE USER     hatshopadmin
+       PASSWORD 'hatshopadmin'
+       SUPERUSER NOINHERIT NOCREATEDB NOCREATEROLE
+       VALID UNTIL 'infinity';
+
+CREATE DATABASE hatshop WITH OWNER = hatshopadmin
+                        ENCODING = 'UTF8';

Code Download/Chapter 03/Code/business/catalog.php

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+<?php
+// Business tier class for reading product catalog information
+class Catalog
+{
+  // Retrieves all departments
+  public static function GetDepartments()
+  {
+    // Build SQL query
+    $sql = 'SELECT * FROM catalog_get_departments_list();';
+
+    // Prepare the statement with PDO-specific functionality
+    $result = DatabaseHandler::Prepare($sql);
+
+    // Execute the query and return the results
+    return DatabaseHandler::GetAll($result);
+  }
+}
+?>