php - update a SESSION var in all files -


facts

i have simple code in php 7.2.0beta3

file one.php

<?php session_start(); $_session['username'] = 'slevin'; $_session['role'] = 'admin'; print_r($_session); ?> <a href="two.php"> go 2 </a>

file two.php

<?php  session_start(); $_session['username'] = 'mike'; print_r($_session); ?> <a href="one.php"> go 1 </a>

i overwrite $_session['username'] in two.php , when go one.php still "slevin" because gets overwritten.

problem

how can pass new $_session['username'] value two.php one.php? when go one.php, username "mike" ?

thanks


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