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Session demonstration - full shopping cart
Shopping Cart Application in PHP example from a Well House Consultants training course
More on Shopping Cart Application in PHP [link] Source code: carter.php4 Module: H116
<?php
/* Session Demonstration Program that uses text files to note what's on which aisle of a store. Users may browse around the aisles, and later may check out via a secure server */ session_start(); include_once("getshop.inc"); $trace = ""; # Logging variable $alert = array(xpostal => "", xemail => "", xname => "", xcard => ""); //////////////////// THINGS TO BE DONE ON ENTRY TO A PAGE if (! session_is_registered("cart")) { // New session - initialise for order entry session_register("cart","currentaisle","step","details"); $cart = array(); # Current cart contents $details = array(email => "", postal =>"", name => "", card => ""); # Details of person $step = 1; # How far through? # 1 - selecting from aisles # 2 - giving own details $currentaisle = ""; } else { switch ($step) { // Incorporate selection of goods from aisles case 1: reset($_POST); while ($item = each($_POST)) { if (ereg("^__(.*)",$item[key],$got)) { $cart[$got[1]] = $item[value]; } } if ($_POST[go_out]) $step = 2; // Move on to checkout! break; // Entry of user's name and address case 2: if (ereg("[[:graph:]]@[[:graph:]]",$_POST[email])) { $details[email] = $_POST[email]; } else { $alert[xemail] = "<BR>REQUIRED"; } if (ereg("[[:graph:]]",$_POST[name])) { $details[name] = $_POST[name]; } else { $alert[xname] = "<BR>REQUIRED"; } if (ereg("[[:graph:]]",$_POST[postal])) { $details[postal] = $_POST[postal]; } else { $alert[xpostal] = "<BR>REQUIRED"; } if ($details[name] and $details[email] and $details[postal]) $step=3; break; case 3: if (ereg("[[:digit:]]{16}",$_POST[card])) { $details[card] = $_POST[card]; } else { $alert[xcard] = "<BR>Just 16 digits<BR>REQUIRED"; } if ($details[card] ) $step=4; break; } } //////////////////// ANY GENERAL WORK TO BE DONE $fill = array_merge($details,$alert); $fill[storename] = readproducts($products,$aisles,$currentaisle); $fill[step] = $step; $fill[totsteps] = 3; //////////////////// THINGS TO PREPARE FOR NEXT PAGE // Always need to evaluate what's in the cart! $bask = ""; reset ($cart) ; while ($item = each($cart)) { if ($item[value] > 0) { $haveitems = 1; $blines .= "<tr><td>".$products[$item[key]][title]. "</td><td>". $item[value]. "</td><td>". $products[$item[key]][days]. "</td><td>". ($dc = $item[value]*$products[$item[key]][days]). "</td></tr>"; $totaldays += $dc; } } if ($blines) $bask = "<table border=1><tr><th>Product</th><th>places</th>". "<th>duration</th><th>total days</th></tr>$blines</table><br><br>"; $fill["bask"] = $bask; ////// Following depend on what next page is to be! switch ($step) { case 1: // Offer Selection of goods from aisles // Work out the products on the current Aisle $ci = "<table border=1>"; reset($products); while (list($code,$product) = each ($products)) { if ($product[aisle] == $currentaisle) { $ci .= "<tr>"; $ci .= "<td>".$product[title]."</td>"; $ci .= "<td>".$product[days]."</td>"; $ci .= "<td><input size=3 name=__".$code. " value=".$cart[$code]. "></td>"; $ci .= "</tr>"; } } $ci .= "</table>"; $fill["ci"] = $ci."<input type=submit value='update cart'><hr>"; // Work out other departments $od = "You are currently in ".$aisles[$currentaisle]."<br>"; reset ($aisles); while ($aisle = each($aisles)) { if ($aisle[key] == $currentaisle) continue; $od .= 'Go to <input type=submit name=jump value="'. $aisle[value].'"><br>'; } $fill["od"] = $od; // Summarise what's in the basket so far $haveitems or $fill[bask] .= "Nothing in the cart yet<br>"; if ($haveitems) { $fill["bask"] .= "TOTAL TRAINING IN BASKET - $totaldays days<br><br>"; $fill["bask"] .= "Select <input type=submit name=go_out value=here> to". " checkout the contents of your basket<br>"; } $nextpage = "offer.htp"; break; case 2: $nextpage = "getaddy.htp"; $fill["bask"] .= "TOTAL TRAINING IN BASKET - $totaldays days<br><br>"; break; case 3: $nextpage = "getccard.htp"; $fill["bask"] .= "TOTAL TRAINING IN BASKET - $totaldays days<br><br>"; break; case 4: // Order placed. Send email. Write to database. session_destroy(); $nextpage = "thankyou.htp"; $fill["bask"] .= "TOTAL TRAINING IN BASKET - $totaldays days<br><br>"; break; } $html = filltemplate($nextpage,$fill); print ($html); ?> Learn about this subject
This module and example are covered on the following public courses:
* Learning to program in PHP * PHP Programming * PHP Programming * Learning to program in PHP Also available on on site courses for larger groups Books covering this topic
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Other Examples
This example comes from our "Shopping Cart Application in PHP" training module. You'll find a description of the topic and some
other closely related examples on the "Shopping Cart Application in PHP" module index page.
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