Hola, sigo con mi carrito, al final lo unico q tengo q hacer es permitir coger los productos de 1 en 1 y poer seleccionar ingredientes. el problema que tengo es que si cojo por ejemplo 2 hamburguesas con disitintos ingredientes me los trata cmo productos iguales y yo quiero q los trate cmo productos distintos y q los liste tb cmo productos distintos.
Os pego el codigo:
<?php
2 // start session
3 session_start();
4
5 // initialize session shopping cart if you are connecting for the first time
6 if (!isset($_SESSION['cart']))
7 {
8 $_SESSION['cart'] = array();
9 }
10
11
12 // Specify the name of the file containing data
13 $catalogFile = "catalog.dat";
14 // if file is available, extract data from it
15 // place into $CATALOG array, with SKU as key
16 if (file_exists($catalogFile)) //does the file exist
17 {
18 $data = file($catalogFile); //read entire file into array. Each line occupies
19 //one array slot. NOT good if file is large.
20 foreach ($data as $line)
21 {
22 $lineArray = explode(':', $line); //lineArray contain three items: SKU,
23 //description, and price
24 $sku = trim($lineArray[0]);
25 $CATALOG[$sku]['desc'] = trim($lineArray[1]); //trim removes extra white
26 $CATALOG[$sku]['price'] = trim($lineArray[2]);//space from either end
27 }
28 }
29 // file is not available
30 // stop immediately with an error
31 else
32 {
33 die("Could not find catalog file");
34 }
35
36 // check to see if the form has been submitted
37 // and which submit button was clicked
38
39 // if this is an add operation
40 // add to already existing quantities in shopping cart
41 if ($_POST['add'])
42 {
43 foreach ($_POST['a_qty'] as $k => $v)
46 {
47 // if the value is 0 or negative
48 // don't bother changing the cart
49 if ($v > 0) //occurs if user entered data
50 {
51
52 //i get the ingredients if there are meals selected
53 if ($k==101)
54 {
55 $newstring = "Hamburguer";
56 foreach ($_POST['ing'] as $o)
57 $newstring = $newstring . " " . $o;
58 }
59 //line below tracks number of each item ordered
60 $_SESSION['cart'][$k] = $_SESSION['cart'][$k] + $v;
61
62
63
64 }
65 }
66 }
67 // if this is an update operation
68 // replace quantities in shopping cart with values entered
69 else if ($_POST['update'])
70 {
71 foreach ($_POST['u_qty'] as $k => $v)
72 {
73 // if the value is empty, 0 or negative
74 // don't bother changing the cart
75 if ($v != "" && $v >= 0)
76 {
77 $_SESSION['cart'][$k] = $v;
78 }
79 }
80 }
81 // if this is a clear operation
82 // reset the session and the cart
83 // destroy all session data
84 else if ($_POST['clear'])
85 {
86 $_SESSION = array();
87 session_destroy();
88 }
90 ?>
91 <html>
92 <head></head>
93 <body>
94
95 <h2>Catalog</h2>
96 Please add items from the list below to your shopping cart.
97
98 <form action="<?=$_SERVER['PHP_SELF']?>" method="post">
99 <table border="0" cellspacing="10">
100 <?php
101 // print items from the catalog for selection
102 foreach ($CATALOG as $k => $v)
103 {
104 echo "<tr><td colspan=2>";
105 echo "<b>" . $v['desc'] . "</b>";
106 echo "</td></tr>\n";
107 echo "<tr><td>";
108 echo "Price per unit: " . $CATALOG[$k]['price'];
109 echo " Quantity: ";
110 echo "<input size=4 type=text name=\"a_qty[" . $k . "]\">";
111 echo "</td></tr><tr><td>";
112 //if the item is a hamburguer y have to show the extra ingredients
113 if ($k==101)
114 {
115 echo " Please select the extra ingredients that you want (FREE!!):</td><td>";
116 echo " <input type='checkbox' name='ing[]' value='Onions'> Onions</td><td>";
117 echo " <input type='checkbox' name='ing[]' value='Ketchup'> Ketchup</td><td>";
118 echo " <input type='checkbox' name='ing[]' value='Pickles'> Pickles</td><td>";
119 echo " <input type='checkbox' name='ing[]' value='Mustard'> Mustard</td><td>";
120 echo " </tr></td>";
121 }
122 //the same if the item is a hamburguer with cheese
123 elseif($k==102)
124 {
125 echo " Please select the extra ingredients that you want (FREE!!):</td><td>";
126 echo " <input type='checkbox' name='ing2[]' value='Onions'> Onions</td><td>";
127 echo " <input type='checkbox' name='ing2[]' value='Ketchup'> Ketchup</td><td>";
128 echo " <input type='checkbox' name='ing2[]' value='Pickles'> Pickles</td><td>";
129 echo " <input type='checkbox' name='ing2[]' value='Mustard'> Mustard</td><td>";
130 echo " </td></tr>";
131 }
132 //the same if the item is a hotdog
133 elseif ($k==103)
134 {
135 echo " Please select the extra ingredients that you want (FREE!!):</td><td>";
136 echo " <input type='checkbox' name='ing3[]' value='Onions'> Onions</td><td>";
137 echo " <input type='checkbox' name='ing3[]' value='Ketchup'> Ketchup</td><td>";
138 echo " <input type='checkbox' name='ing3[]' value='Pickles'> Pickles</td><td>";
139 echo " <input type='checkbox' name='ing3[]' value='Mustard'> Mustard</td><td>";
140 echo " </td></tr>";
141 }
142 echo "</td></tr>";
143
144
145 }
146 ?>
147 <tr>
148 <td colspan="2">
149 <input type="submit" name="add" value="Add items to cart">
150 </td>
151 </tr>
152 </table>
153
154 <hr />
155 <hr />
156
157 <h2>Shopping cart</h2>
158
159 <table width="100%" border="0" cellspacing="10">
160 <?php
161 // initialize a variable to hold total cost
162 $total = 0;
163 // check the shopping cart
164 // if it contains values (It COULD be empty)
165 // look up the SKUs in the $CATALOG array
166 // get the cost and calculate subtotals and totals
167 if (is_array($_SESSION['cart']))
168 {
169 foreach ($_SESSION['cart'] as $k => $v)
170 {
171 // only display items that have been selected
172 // that is, quantities > 0
173 if ($v > 0)
174 {
175 $subtotal = $v * $CATALOG[$k]['price'];
176 $total += $subtotal;
177 echo "<tr><td>";
178 echo "<b>$v unit(s) of " . $CATALOG[$k]['desc'] . "</b>";
179
180 /*//normal hamburguer
181 if ($k==101)
182 if (is_array($_POST['ing']))
183 {
184 echo " with: ";
185 //foreach to read the elements
186 foreach ($_POST ['ing'] as $o)
187 {
188 echo " $o ";
189 }
190 }
191 //cheese hamburguer
192 if ($k==102)
193 if (is_array($_POST['ing2']))
194 {
195 echo " with: ";
196 //foreach to read the elements
197 foreach ($_POST ['ing2'] as $o)
198 {
199 echo " $o ";
200 }
201 }
202 //hotdog
203 if ($k==103)
204 if (is_array($_POST['ing3']))
205 {
206 echo " with: ";
207 //foreach to read the elements
208 foreach ($_POST ['ing3'] as $o)
209 {
210 echo " $o ";
211 }
212 }*/
213
214 echo "</td><td>";
215 echo "New quantity: <input size=4 type=text name=\"u_qty[" . $k . "]\">";
216 echo "</td></tr>\n";
217 echo "<tr><td>";
218 echo "Price per unit: " . $CATALOG[$k]['price'];
219 echo "</td><td>";
220 echo "Sub-total: " . sprintf("%0.2f", $subtotal);
221 echo "</td></tr>\n";
222 }
223 }
224 }
225 ?>
226 <tr>
227 <td><b>Total without taxes</b></td>
228 <td><b><?=sprintf("%0.2f", $total)?></b></td>
229 </tr>
230 <br>
231 <tr>
232 <td>Taxes</td>
233 <? $taxes = $total * 0.055; ?>
234 <td><?=sprintf("%0.2f", $taxes) ?></td>
235 </tr>
236 <br>
237 <td><b>TOTAL</b></td>
238 <? $totaldef = $total + $taxes; ?>
239 <td><b><?=sprintf("%0.2f", $totaldef) ?></b></td>
240 </tr>
241 <br>
242
243
244 <tr>
245 <td><input type="submit" name="update" value="Update Cart"></td>
246 <td><input type="submit" name="clear" value="Clear Cart"></td>
247 </tr>
248 </table>
249 </form>
250
251 </body>
252 </html>
Gracias x adelantado. Saludos
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