为什么我的小PHP脚本不起作用？

Question

I am writing a script that takes information entered in this format:

John Smith
123 Fake St
Riverwood, 11234
http://google.com

and turns it into

<location id='1'>
   name='John Smith',
   address='123 Fake St',
   city='Riverwood',
   zip=' 11234',
   website='http://google.com'
</location>

Here is the code:

$locations = $_POST['locations'];
$data = explode("
", $locations);
$dataBlocks = explode("

", $locations);
$num = 1;

for ($i=0; $i<count($dataBlocks); $i++) {

    $name = $data[0];
    $address = $data[1];
    $data2 = explode(',', $data[2]);
    $city = $data2[0];
    $zip = $data2[1];
    $website = $data[3];

    $xml = ("<location id='$num'>
                    name='$name',
                    address='$address',
                    city='$city',
                    zip='$zip',
                    website='$website'
             </location>");

    $num++;

}

Now, the above works for one block of info, but when I have 2 or more blocks like so:

John Smith
123 Fake St
Riverwood, 11234
http://google.com

Peter Gunderson
345 Some St
Woodsdale, 44566
http://yahoo.com

Then I get this output:

<location id='1'>
   name='John Smith',
   address='123 Fake St',
   city='Riverwood',
   zip=' 11234',
   website='http://google.com'
</location>

<location id='2'>
   name='John Smith',
   address='123 Fake St',
   city='Riverwood',
   zip=' 11234',
   website='http://google.com'
</location>

I know why this is, it's because I am defining these variables:

$name = $data[0];
$address = $data[1];
$data2 = explode(',', $data[2]);
$city = $data2[0];
$zip = $data2[1];
$website = $data[3];

based on there places in the $data array. So, even though I'm using a loop the values of those variables are always the same. For example: whereas for John Smith the $name variable should have a value of $data[0], for Peter Gunderson the name variable should have a value of $data[5]. But now it's $data[0] for both. Hence the output is showing the same name, address, etc. for every info block entered.

So the question is, how can this script be modified so that the output will show unique results for every info block and not just repeat the first one?

EDIT

@gazler your code gives me this output for the above example:

<location id='1'>
                    name='John Smith',
                    address='123 Fake St',
                    city='Riverwood',
                    zip=' 11234',
                    website='http://google.com'
</location>

<location id='2'>
                    name='',
                    address='Peter Smith',
                    city='',
                    zip='',
                    website='Woodsdale, 44566'
</location>

Answer 1

You need to update $data within your loop over $dataBlocks:

$locations = $_POST['locations'];
$xml = '';
$dataBlocks = explode("

", $locations);
$num = 1;

for ($i=0; $i<count($dataBlocks); $i++) {
    // get data for current datablock
    $data = explode("
", $dataBlocks[$i]);
    $name = $data[0];
    $address = $data[1];
    $data2 = explode(',', $data[2]);
    $city = $data2[0];
    $zip = $data2[1];
    $website = $data[3];

    $xml .= ("<location id='$num'>
                    name='$name',
                    address='$address',
                    city='$city',
                    zip='$zip',
                    website='$website'
             </location>");
    $num++;
}