How do I get the key values from $_POST?

Question

echo $_POST["name"]; //returns the value a user typed into the "name" field

I would like to be able to also return the text of the key. In this example, I want to return the text "name". Can I do this?

Answer 1

$_POST is just a normal associative array so you can also loop over the entire thing like this:

foreach($_POST as $key=>$value)
{
  echo "$key=$value";
}

Answer 2

Check out the array_keys() function assuming this is PHP.

http://us2.php.net/array_keys

Answer 3

@Tim: there was a ) missing. so it should be:

while( list( $field, $value ) = each( $_POST )) {
   echo "<p>" . $field . " = " . $value . "</p>\n";
}

Answer 4

while( list( $field, $value ) = each( $_POST )) {
   echo "<p>" . $field . " = " . $value . "</p>\n";
}

Answer 5

foreach($_POST as $rvar)
{
 $rvarkey=key($_POST)
 $$rvarkey=mysql_real_escape_string($rvar);
}

it creates variables having the name of the request parameters which is pretty awesome.

Answer 6

array_keys($_POST)

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