Reading POST vars using variable variables

[epp_b]

Simple, yet complicated question 😉

Do variable variables work when referring to arrays passed by a form?

<input type="text" name="hour['HourStartSun']">

$day = "Sun";
$tmp_var = "hour[\"HourStart" . $day . "\"]";
echo $$tmp_var;

This returns nothing 😕

Is there something as simple as incorrect syntax that I'm missing?

[HalfaBee]

It doesn't seem to work as you want it to.

It does work like this

$day = "Sun";
$tmp_var = "hour";
echo ${$tmp_var}[$day];

HalfaBee

[rohithmr]

First of all thank you for making me realize my misconception abt variable variables. Now I will try to clear up urs.

<?php
error_reporting(E_ALL); // So that you will see the Notices
$list = array('c1'=> 'red','c2'=>'orange','c3'=>'Yellow');
$red = 'Contents of the variable red';
$tmp = 'list["c1"]';
/* Now I bet that you think that
 * $$tmp is equal to $list['c1'] but
 * its not. As proof:
 */
echo $$tmp;
echo '<br>';
/*
 *Now lets try this
 */
echo ${$list['c1']};
echo '<br>';
echo $red;
echo '<br>';

/*
 * Now if i wanted to get the value
 * of $list['c1'] then i dont need 
 * variable variables.
 */

$n = '1'; // Equivalent of $day in ur example.
echo $list['c'.$n];
echo '<br>';
?>

So ur example shudd be:

<input type="text" name="hour[HourStartSun]">

<?php
$day = "Sun"; 
echo $hour['HourStart'.$day];
// If u have globals turned off then
echo $_GET['hour']['HourStart'.$day];
?>