In the provided PHP code snippet, what role does the variable $admin play and how does it affect the execution flow?

The variable $admin in the provided PHP code snippet is being used as a flag to determine whether the user is an admin or not. It affects the execution flow by allowing certain actions or privileges to be granted only to users who are identified as admins. To ensure that the code functions correctly, we need to initialize the $admin variable before using it to check if the user is an admin. 

$admin = false; // Initialize $admin variable

if ($user_role === 'admin') {
    $admin = true;
    // Perform actions reserved for admins
} else {
    // Perform actions for regular users
}

Keywords

PHP variable execution flow code snippet role

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