How to remove a variable from a PHP session array

by 
if (isset($_POST['remove'])) {
    $key=array_search($_GET['name'],$_SESSION['name']);
    if($key!==false)
    unset($_SESSION['name'][$key]);
    $_SESSION["name"] = array_values($_SESSION["name"]);
}

Since $_SESSION['name'] is an array, you need to find the array key that points at the name value you’re interested in. The last line rearranges the index of the array for the next use.

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