[RESOLVED] Difference between $_GET and $_POST variables... Please explain ...

[pradee]

Hi!

I know how to use Superglobals $GET and $POST, but i don't think i understand them completely.

What i know is $GET sends the info in the url, whereas $POST is used for sending variables in a form.

Can anyone please explain them thoroughly and the difference between the two and the advantage & disadvantage of each variable over the other?

Even a link where i can learn this will be enough.

Have a nice day!

Thanks & regards, 😕

Pradee

[Ludichrist]

That's all there is to it.

With get, you can send data to the server without user input. The post method requires form data.

[Blulagoon]

There are two drawbacks with GET that are worth remembering, one the number of characters you can send is limited, and that they are visible to the user within the URL of the new page.

GET is extremely useful with <a href> links, especially where built from data drawn from a database, you might be using something like .....

$sql = "SELECT id from mytable";
$result = mssql_query($sql);
while ($row = mssql_fetch_array($result));  {
echo "<br><a href='mypage.php?id=".$row['id']."'>Link to id ".$row['id']."</a>";
}

POST is better for passing multiple variables in a form, especially things like <textarea> which often contain quite a lot of data. You can also use hidden fields to pass data the user won't see (unless they look at the source of your page).

HTH - Blu

[pradee]

Hi!,

Thanks a lot you both for your replies. I learned a few more things i didn't know or ignorant of.

Have a great day!