victusinambitus
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Thanks ChristianF.
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Thanks to the people who have responded. Much appreciated. Apologies but I still do not have a grasp on the solutions provided. Sorry if I didn't make myself clear and (for Spring) my understanding of arrays and loops is limited to copying others' existing code and modifying. I think it may be better for me to ask the question another way: I have a form that posts data. A var_dump($_POST) in the receiving code may produces for example this: array(3) { ["item_273"]=> string(1) "1" ["item_107"]=> string(1) "5" ["item_65"]=> string(2) "10" } As a result of this sample post I need to then have the following variables available in my receiving PHP code: $item_16="1"; $item_273="5"; $item_65="10; I will then loop through each item in the array, search the database for further information on each item such as say, price and weight: $item_16_price="1.00"; $item_273_price="2.00"; $item_65_price="3.00"; and, $item_16_weight="5"; $item_273_weight="10"; $item_65_weight="3"; and then total values to calculate total weight and total price: $total_price=$item_16*$item_16_price; $total_weight=$item_16*$item_16_weight; to be able to build one results string: $order="You have ordered:<br />"; $order.="Item: 16, Qty: 7, Weight: 5kg<br />"; $order.="Item: 273, Qty: 7, Weight: 5kg<br />"; $order.="Item: 65, Qty: 7, Weight: 5kg<br />"; $order.="Total Price: $41.00<br />"; $order.="Total Weight: 85kg<br />"; Using: echo $order; I can now produce the desired output: You have ordered: Item: 16, Qty: 7, Weight: 5kg Item: 273, Qty: 7, Weight: 10kg Item: 65, Qty: 7, Weight: 3kg Total Price: $41.00 Total Weight: 53kg I have supplied my "quasi" code again for your assistance. //a) code here to set variables: $item_16="1"; $item_273="5"; $item_65="10; //b) code here to loop through the database picking up additional values for the three posted items like: SELECT price,weight FROM PRODUCTS WHERE products_id={array value here} $item_16_price="1.00"; $item_273_price="2.00"; $item_65_price="3.00"; $item_16_weight="5"; $item_273_weight="10"; $item_65_weight="3"; //c) looping finished and all variables set and available for use $total_price=$item_16*$item_16_price; $total_weight=$item_16*$item_16_weight; //d) my outputing code for example that may calculate total weight and/or total price //e) use all variables
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I have an order form that is populated dynmically from a database. We have no control over the number of "active" items at the time the form is generated however the format of the fields is defined as: $item_[n], where [n] is the database record ID. <?php $sql="select * from products where active=1 order by 'order' "; $result1=mysql_query($sql); $no=mysql_num_rows($result); for($i=0;$i<$no;$i++) { $products_id=trim(mysql_result($result1,$i,"products_id")); ?> <HTML OUTPUT HERE>Item: <input type="text" name="item_<?php echo $products_id; ?>"size="1" /> <?php } ?> All is well so far, however after posting this data I wish to capture the posted data into an array and then process it. I have it fully working hard coded thus: <?php if(array_key_exists('item_1', $_POST)) { $item_1=$_POST['item_1']; if ($item_1>0) { <DATA PROCESSING CODE HERE> } } else { $item_1=""; } <?php if(array_key_exists('item_2', $_POST)) { $item_2=$_POST['item_2']; ... etc Obviously I wish to automate this by putting all posted data into an array and then looping through those items in the array. Can someone please help me put conditional posted data (where for example they commence with "item_") into an array and then complete the code looping through the variables in the array? <CAPTURE CONDITIONAL POSTED DATA INTO AN ARRAY HERE> <FOR LOOP BEGINS> <DATA PROCESSING CODE HERE USING THE <field from array>> <FOR LOOP ENDS> Thank you