Session available to multiple programmers?

Question

when a user enters my Website and i do a session start and set a value and use it on my other pages and then the user continues browsing on other website and they start a session too can there be an conflikt e.g. they declare the same name?

Answer 1

no lol. i think it works differently for every browser like if my chrome has $_SESSION["username"] = "cheeze"; i wouldnt think my neighbor who goes to sololearn has $_SESSION["username"] = "cheeze" too