PHP: Possible to pass array through URL?

[apinomus]

Is it possible to pass an array through a URL? For example: http://www.mydomain.com/page.php?myvar=content1,content2,content3

Then come out with:
if(is_array($_GET['myvar')) {
print_r($_GET['myvar']);
}

which would print:
[0] => content1
[1] => content2
[2] => content3

Is there a way to pass multiple values to one variable using URL encoding? Or should I just delimit the string with a pipe and split("|",$myvar); once back in PHP?

 

[troytime]

you can do page.php?myvar[]=content1&myvar[]=content2&myvar[]=content3

not sure of the exact syntax...its been a while

you can also serialize the array and then rawurlencode it and pass it as a single variable
then you decode it and unserialize it

 

[kamper]

I don't know how php handles this, but the http spec says that you can send multiple parameters with the same name à la: ?foo=bar1&foo=bar2&foo=bar3

The java servlet api allows you to access a collection of values for a single parameter name (along with another option that simply picks the first one, in case you're only expecting one). Hopefully php does something similar. So I'd try sending multiple things with the same name and see what php does.

<edit>Oh, this looks pretty similar to troytime's suggestion...</edit>

Or, using your example with the commas, you could just send that, retrieve the value as one big string and then split it yourself.

 

[cleverhandle]

It's hard to say without more context, but since it sounds like you control both the "sending" and "receiving" pages it seems like this could be more easily accomplished with session variables.