Map...

NZ_Kiwis

I'm drawing a a map... this is easy but I want to draw lines from say pixels 1,1 to 15,15..... then 1,1 to 25,45

these varents will be sent via the url.. my question is how can i send a unlimited about via URL??

mypic.php?Lines=1,1,15,15&1,1,25,45&1,1,90,24

I have no idea?

Ashley_Sheridan

I think the best way is to first join the whole lot of coordinates into a single string on the client side with JavaScript, and then send it off to the PHP script.

You might want to join the sets of coordinates with a delimiter like ~~~ (as its highly unlikely to occur in a URL) so you'd have coords like:~~

mypic.php?Lines=1,1,14,10,10,12~~~2,20,2,12,10,12~~~etc

Then in the PHP just do this to get each set of coordinates:

$coords = explode($_REQUEST['Lines']);

Each element in the $coords array will contain all the coord pairs for a shape on your map, and you can go through them pair by pair with a simple loop, for example, going through the coords for the first shape:

for($i=0; $i<count($coords[0]); $i+=2)
{
    // do something with the coords here
}

NogDog

You could use square bracket notation in the query string variable names to create a multi-dimension set of $GET values, e.g.:

<html>
<head><title>test</title></head><body>
<p><a href="test.php?x[1]=1&y[1]=1&x[2]=5&y[2]=25">click me</a></p>
<?php
if(!empty($_GET))
{
   echo "<pre>".print_r($_GET,1)."</pre>\n";
}
?>
</body></html>