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Use of session variables to pass variables through pages using php

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I want to use session to pass variables through pages using php.
Site structure is:
1. header.php
2. column.php
3. footer.php
4. index.php
Pages 1, 2 & 3 are included into the index.php.

In header.php page, there is a drop down, in which links(cities) are placed where users will select city.
Now, I want to do code to store selected values into a variable and pass to multiple pages.

Please help on this..

posted Aug 25, 2014 by anonymous

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1 Answer

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You can try session variable in the following way -

//On page 1
session_start();
...
...
$_SESSION['varname'] = $var_value;

//On page 2
session_start();
...
...
$var_value = $_SESSION['varname'];
answer Aug 25, 2014 by Salil Agrawal
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Why I can't read static variables of a child class, even so the variable is protected or public?

Here's what I tried:

class A {
 protected static $foo = "bar";
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class B {
 public function readFoo() {
 return self::$foo;
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When now calling B::readFoo, I get the following error:

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Fatal error: Access to undeclared static property: B::$foo in php shell
code on line 1

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...