What is the issue with passing a variable from one page to another in PHP?

When passing a variable from one page to another in PHP, the issue arises because HTTP is stateless, meaning that each request is independent and does not retain information from previous requests. To solve this issue, you can use sessions or URL parameters to pass variables between pages. 

// Page 1: setting a variable in session
session_start();
$_SESSION['variable_name'] = $value;

// Page 2: accessing the variable from session
session_start();
$value = $_SESSION['variable_name'];

Keywords

variable passing PHP session GET method POST method

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