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Dewi Tjin
2,275 PointsHow come when I use var_dump($_REQUEST); I can get an array of elements, but the php documentation said I can't...?
In the PHP Manual ( http://ca3.php.net/manual/en/reserved.variables.request.php), I found this code
<?php
$_GET['foo'] = 'a';
$_POST['bar'] = 'b';
var_dump($_GET); // Element 'foo' is string(1) "a"
var_dump($_POST); // Element 'bar' is string(1) "b"
var_dump($_REQUEST); // Does not contain elements 'foo' or 'bar'
?>
I was able to get an array with the elements when I used var_dump($_REQUEST) though.
3 Answers
thomascawthorn
22,986 PointsIf you do
$_REQUEST['foo'];
will it give you foo (value of 'a')?
Dewi Tjin
2,275 PointsI didn't know those comments were from users, I thought it was from the documentation?? A prof told me $_REQUEST is $_GET and $_POST together. Or should I think of $_REQUEST and a separate php variable all together?
thomascawthorn
22,986 PointsAnything under the section heading "User Contributed Notes" are comments from users. I believe they're validated and also voted up/down.
They're all totally separate variables. $_REQUEST also included $_COOKIE.
Anthony Rouinvy
10,495 PointsI prefer to use "print_r" which is more readable by humans.
print_r($_REQUEST);
And of course, it should display both content of $_GET and $_POST; except if $_GET or $_POST are changed by your code (which should not be the case).
thomascawthorn
22,986 Pointsthomascawthorn
22,986 PointsI just checked out the comment you read (remember these are user-added comments, which although trustworthy are not from the php docs themselves)
"Don't forget, because $_REQUEST is a different variable than $_GET and $_POST, it is treated as such in PHP -- modifying $_GET or $_POST elements at runtime will not affect the ellements in $_REQUEST, nor vice versa."
This poster is referring to these variables in the contect of modifying at run time.