$method = 'post';
$method = strtoupper($method);
echo $method.'test1';
$method = '_'.$method;
echo $method.'test2';
$method = $$method;
echo $method.'test3';
Why doesn't this print the content of $_POST between 2 and 3?
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2 Answers
You want $method['test3'] to access the elements of the $_POST array. The dot . operator does string concatenation. Square brackets [] are used for array access.
2 Comments
Delirium tremens
No, I want $_SESSION, $_COOKIE, $_POST and $_GET from 'session', 'cookie', 'post' and 'get'.
Delirium tremens
I think I'm going to end up using if($method == 'post') $method = $_POST; if($method == 'get') $method = $_GET; if($method == 'session') $method = $_SESSION; if($method == 'cookie') $method = $_COOKIE;
In addition to John Kugelman's excellent point, I would use the following
$method = $_POST;
echo $method['test1'];
echo $method['test2'];
echo $method['test3'];
and not bother with trying to access a contant array name via a string
If you really insist on using a string to access these, you could
$method = "post";
$method = strtoupper($method."_");
if (isset(${$method})) {
$method = ${$method};
echo $method['test1'];
echo $method['test2'];
echo $method['test3'];
}
