Pass Array (GET method) in img URL for a JpGraph?

Joseph_Sliker

I'm having a bit of trouble with the following:

I'm trying to pass an array with a handful of values to an img URL so it will return a JpGraph to my result page.

echo ("<p><img border=\"0\" src=\"http://www.myfakesitename.com/jpgraph/src/my_pie_2.php?PIE=$PIE\"></p>");

The Array i need to pass is named $PIE.

If I include a print_r statement in the script, the contents look like they are formed correctly:

Array ( [FINT] => 9.50 [EINT] => NULL [PVNT] => 4.50 [OTHER] => 4.75 )

When I call the page, no picture appears (just the little [X] image and no error from JpGraph. The URL under the [X] reads:
http://www.myfakesitename.com/jpgraph/src/my_pie_2.php?PIE=Array

So, it's just passing the word "Array"?

How would I get it to actually pass the actual Array with all the Keys & values?

Thanks!

drew010

[man]serialize[/man]ing it first is a good way to preserve the data.

$PIE_Serialized = serialize($PIE);
//now its serialized, pass it to the url
echo "<p><img border=\"0\" src=\"http://www.myfakesitename.com/jpgraph/src/my_pie_2.php?PIE=".urlencode($PIE_Serialized)."\"></p>

now in your graphing program do

$PIE = unserialize(urldecode(($_GET['PIE_Serialized']));

//rest of the script remains the same

Joseph_Sliker

I see now that the URL is going through as:

"http://www.myfakewebsite.com/jpgraph/src/my_pie_2.php?PIE=a%3A4%3A%7Bi%3A0%3Bs%3A4%3A%229.50%22%3Bi%3A1%3Bi%3A0%3Bi%3A2%3Bs%3A4%3A%224.50%22%3Bi%3A3%3Bs%3A4%3A%224.75%22%3B%7D"

I can see the variable values in that mess, but there still seems to be something wrong on the receiving end...

$PIE = unserialize(urldecode(($_GET['PIE_Serialized'])));

(there appeared to be a missing ")" in the original suggestion

I also tried the following...

$PIE = unserialize(urldecode(($_GET['PIE'])));

But still, I seem to be getting empty strings at the end of those statements rather than Array values.

I do appreciate the help...I suspect this is on the right track, but it is not working yet.

drew010

yes it appears i put an extra ( in by accident.

$PIE = unserialize(urldecode($_GET['PIE']));
should have done the trick.

i opened up my zend debugger and just typed in the data to see what the result was, it seemed to work fine for me.

here was my code

$PIE = array("FINT" => 9.50, "EINT" => NULL, "PVNT" => 4.50, "OTHER" => 4.75);

$PIE_Serialized = urlencode(serialize($PIE));

echo $PIE_Serialized;

echo "\n";

$PIE = unserialize(urldecode($PIE_Serialized));

print_r($PIE);

the output was:

a%3A4%3A%7Bs%3A4%3A%22FINT%22%3Bd%3A9.5%3Bs%3A4%3A%22EINT%22%3BN%3Bs%3A4%3A%22PVNT%22%3Bd%3A4.5%3Bs%3A5%3A%22OTHER%22%3Bd%3A4.75%3B%7D
Array
(
[FINT] => 9.5
[EINT] =>
[PVNT] => 4.5
[OTHER] => 4.75
)

so it seems thru the serialization and deserialization the data survived. give it another try and see what happens trying to emulate the code i just gave.