Checking for any POST variables

[Ascendancy]

How can I check to see, not specifically what the name of the variable is, but just to see if there were any POST variables sent in general to the server when the page loads?

[bpat1434]

if(isset($_POST) && !empty($_POST))
{
    // Something has been posted....
}

Otherwise, $_POST will not be set, or if it is set with the prepopulate all global vars, it will be an empty array. If something has been posted, (even on item), it won't be empty.

[Ascendancy]

Well that's pretty simple, thanks for the help.

[NogDog]

You could shorten that to just:

if( ! empty($_POST)) {

[bpat1434]

Except for if $_POST isn't created, then it can throw an error depending on the error level set.

[NogDog]

bpat1434 wrote:

Except for if $_POST isn't created, then it can throw an error depending on the error level set.

Actually, it won't. As per [man]empty[/man], "empty() is the opposite of (boolean) var, except that no warning is generated when the variable is not set."

[bpat1434]

Interesting.... anytime I've used it without isset, I get errors when the var isn't set. Perhaps it's because I'm using a specific array index.... oh well. Good to know.

[NogDog]

bpat1434 wrote:

Interesting.... anytime I've used it without isset, I get errors when the var isn't set. Perhaps it's because I'm using a specific array index.... oh well. Good to know.

For a sanity check, I ran the following and got no errors:

<?php
error_reporting(E_ALL);
if(empty($test))
{
   $test = array();
   if(empty($test))
   {
      if(empty($test[1]))
      {
         echo "Everything is empty. Any error messages yet?";
      }
   }
}

[bpat1434]

Odd... I don't either... perhaps it was a php4 thing..... I don't know now.....