#postcodeanywhere

The PHP Class

This is my php5 class for postcode anywhere. You must have a valid license key and account code. I use PHP's simplexml_load_file to grab the data from postcode anywhere.

 This PHP Postcode Anywhere Class has been adopted by Postcode Anywhere and is now part of the Postcode Anywhere API, and is in use on their examples pages. So head over to Postcode Anywhere and grab even more examples and the maintained PHP Class.

There are three stages:

1. Enter Postcode. Display the postcode input to the user (usually as part of a form for registering, checkout, signup etc). User enters postcode and submits the form.

2. Get addresses. An array of matching addresses from postcode anywhere are returned via getAddressesByPostcode(). This array is looped through and displayed as a dropdown list of addresses - the user chooses their address...

3. Choose Address. The chosen address_id is then sent to postcode anywhere to get the full details for that addresses, this is returned through getAddressByID().

<?php /** * * class.postcodeanywhere.php * * stuart sillitoe 2011 * * * **/ class PostcodeAnywhere { var $account_code; var $license_key; var $postcode; // the postcode entered by the user var $data; // holds address data var $address_id; // the id of the selected address function PostcodeAnywhere($account_code, $license_key) { $this--->account_code = $account_code; $this->license_key = $license_key; } function getAddressesByPostcode($postcode) { $this->setPostcode($postcode); $url = "http://services.postcodeanywhere.co.uk/xml.aspx?"; $url .= "account_code=" .urlencode($this->account_code); $url .= "&license_code=" .urlencode($this->license_key); $url .= "&action=lookup"; $url .= "&type=by_postcode"; $url .= "&postcode=" .urlencode($this->postcode); $file = simplexml_load_file($url); if ( !empty($file->Data) ) { foreach ($file->Data->Item as $item) { $this->data[] = array('id'=>$item->attributes()->id, 'description'=>$item->attributes()->description); } } } function getAddressByID($address_id) { $this->setAddressID($address_id); $sURL = "http://services.postcodeanywhere.co.uk/xml.aspx?"; $sURL .= "account_code=" .urlencode($this->account_code); $sURL .= "&license_code=" .urlencode($this->license_key); $sURL .= "&action=fetch"; $sURL .= "&style=simple"; $sURL .= "&id=" . $this->address_id; $this->data = $this->prepareData($sURL); } function prepareData($url) { $data = simplexml_load_file($url); foreach ($data->Schema->Field as $field) { $k = (string) $field->attributes()->Name; $v = (string) $data->Data->Item->attributes()->$k; $out[$k] = $v; } return $out; } // get any data function hasData() { if ( !empty($this->data) ) { return $this->data; } return false; } // set postcode function setPostcode($postcode) { $this->postcode = strip_tags(trim($postcode)); } // get postcode function getPostcode() { return $this->postcode; } // set address id function setAddressID($address_id) { $this->address_id = (float) $address_id; } // get address id function getAddressID() { return $this->address_id; } // get address function getSelectedAddress() { if ( $this->hasData() && !empty($this->address_id) ) { return $this->data; } } } ?>

The HTML that i use in my form

The following HTML is simply the postcode input and a div that will be used to load in the response. jQuery is used to fetch the content.

<div class="paWrap" id="registerPaWrap" style="clear:left;background:#ddd;padding:10px;margin:0 -10px 10px -10px;overflow:hidden;"> <label for="postcode" class="required"><?php echo TextLabelTranslation::getText('form:label:postcode', $_SESSION['CW']['id']); ?></label> <input type="text" name="postcode" id="postcode" value="<?php echo $this->postcode; ?>" style="width:50px;margin-right:10px;" /> <input type="button" class="button colour" id="addressLookup" value="Find Address" onclick="$('#paChooseAddress').hide();$('#registerPaWrap_Addresses').html(loading);$.post('/p/pa.lookup.php', {postcode: $('#postcode').val()}, function(data){ $('#registerPaWrap_Addresses').html(data); });" /> <br/> <div id="registerPaWrap_Addresses" class="clearBoth"> </div> </div>

…and the following code in in /p/pa.lookup.php

<?php require_once($_SERVER['DOCUMENT_ROOT'] .'/inc/loader.php'); // create a new postcodeAnywhere object $pa = new PostcodeAnywhere(PA_ACCOUNTCODE, PA_LICENSEKEY); // user has chosen an address... if (isset($_POST['address_id'])) $pa->getAddressByID($_POST['address_id']); if ( $pa->hasData() ) { $address = $pa->getSelectedAddress(); echo json_encode($address); } else { ?><p class="message error">Error: Could not fetch address.</p><?php } } // user has entered a postcode... else if ( !empty($_POST['postcode']) ) { $pa->getAddressesByPostcode($_POST['postcode']); if ( $pa->hasData() ) { ?> <div id="paChooseAddress"> <label for="address_id">Choose Address</label> <select name="address_id" id="address_id" style="margin-right:10px;"> <?php foreach ($pa->data as $address) { echo '<option value="' .$address['id'] .'">' .trim($address['description']) .'</option>'; } ?> </select> <input type="button" class="button colour" name="selectAddress" id="selectAddress" value="Select Address" onclick="$.post('/p/pa.lookup.php', {address_id: $('#address_id').val()}, function(data) { d = $.parseJSON(data); $('#company_name').val(d.organisation_name); $('#department').val(d.department_name); if ( d.line3 != '' ) { $('#address_1').val(d.line1 + ', ' + d.line2); d.line4 != '' ? $('#address_2').val(d.line3 + ', ' + d.line4) : $('#address_2').val(d.line3); } else { $('#address_1').val(d.line1); $('#address_2').val(d.line2); } $('#town').val(d.post_town); $('#county').val(d.county); });$('#doneWithAddresses').fadeIn('slow');" /> <input type="button" class="button colour" id="doneWithAddresses" value="Ok" style="margin-left:10px;display:none;" onclick="$('#paChooseAddress').hide();$(this).fadeOut('slow');" /> </div> <?php } else { ?><p class="message error">Error: No results were found for <?php echo $pa->postcode; ?>. Please try again.</p><?ph } } ?>

The javascript above may or may not be neccessary for you. i need it to load the response data into my address form.

The Postcode Anywhere version is below, for clarity and completeness.