Do I need to add session_start() in include pages if I have it on the parent file?

Question

I have this code below as as an example .. should I use session_start() again in all the included scripts if I already have it on top in the parent file ..

here's parent.php

<?php
session_start();
include 'child1.php';
include 'child2.php';

//
?>

do child1.php and child2.php need session_start() as well in order to use session variables in them or is the first session_start of the parent.php file enough for the include files to use session variables?

Read the answers here: http://stackoverflow.com/questions/10158139/when-do-i-have-to-declare-session-start — Sergiu Paraschiv, Apr 29 '14 at 15:16

score 2 · Accepted Answer · edited Nov 18 '13 at 18:35

2

No you only want session_start() called once.

Calling session_start() after the session was previously started will result in an error of level E_NOTICE. Also, the second session start will simply be ignored.

edited Nov 18 '13 at 18:35

kero

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answered Nov 18 '13 at 18:33

jszobody

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Thank you .. I thought I may need to include them in the included files too.. thanks for the clarification – Stack Overflow Nov 18 '13 at 19:20

Do I need to add session_start() in include pages if I have it on the parent file?

1 Answers1