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Re: Seeking help with relative and absolute paths

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On 22/03/13 05:24, The Frog wrote:
> Thankyou very much for the replies. I appreciate the help. I have a follow-up question then regarding constants and setting them. If I define a constant say in the sites landing page (eg/index.php) will that constant then remain available for any scripts on pages that follow without having to 'require' them?

<?php
DEFINE('A', true);
include "fileB.php";
?>

In this case the A would exists in fileB.php, but it's a quite iffy way 
to do it, as if you include fileB.php from another script which don't 
have the define, then the A will be missing and you will end up with an 
error. A constant will only exists after it has been defined and will 
not remain in memory when you load a new page.

> The reason I ask is one of ignorance on my part. Having consulted the php manual on constants I am unable to make a clear determination on their usage and scope. It would seem in my experimentation and learning that a constant does not in fact remain but in fact needs to be re-defined in each unique page change on the users part. While this can be accommodated in the scripts and pages that I write I am wondering if there is a better way? Define once and use many places?

A constant will not magically live into another page, if you want a 
value to be set on pageA and then be accessible on pageB and pageC then 
use $_SESSION[]

see: http://www.php.net/manual/en/intro.session.php


-- 

  //Aho

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Thread

Seeking help with relative and absolute paths The Frog <mr.frog.to.you@googlemail.com> - 2013-03-19 21:45 -0700
  Re: Seeking help with relative and absolute paths "J.O. Aho" <user@example.net> - 2013-03-20 06:45 +0100
  Re: Seeking help with relative and absolute paths Jerry Stuckle <jstucklex@attglobal.net> - 2013-03-20 06:46 -0400
    Re: Seeking help with relative and absolute paths "J.O. Aho" <user@example.net> - 2013-03-20 19:10 +0100
      Re: Seeking help with relative and absolute paths The Frog <mr.frog.to.you@googlemail.com> - 2013-03-21 21:24 -0700
        Re: Seeking help with relative and absolute paths "J.O. Aho" <user@example.net> - 2013-03-22 08:11 +0100
          Re: Seeking help with relative and absolute paths The Frog <Mr.frog.to.you@googlemail.com> - 2013-03-22 19:38 +1100
            Re: Seeking help with relative and absolute paths Jerry Stuckle <jstucklex@attglobal.net> - 2013-03-22 09:01 -0400
            Re: Seeking help with relative and absolute paths "M. Strobel" <sorry_no_mail_here@nowhere.dee> - 2013-03-22 14:33 +0100
          Re: Seeking help with relative and absolute paths Scott Johnson <noonehome@chalupasworld.com> - 2013-03-22 06:12 -0700
            Re: Seeking help with relative and absolute paths The Frog <Mr.frog.to.you@googlemail.com> - 2013-03-23 23:57 +1100
              Re: Seeking help with relative and absolute paths Scott Johnson <noonehome@chalupasworld.com> - 2013-03-23 07:25 -0700
                Re: Seeking help with relative and absolute paths "J.O. Aho" <user@example.net> - 2013-03-23 16:24 +0100
                Re: Seeking help with relative and absolute paths The Frog <Mr.frog.to.you@googlemail.com> - 2013-03-24 15:09 +1100
                Re: Seeking help with relative and absolute paths Scott Johnson <noonehome@chalupasworld.com> - 2013-03-24 07:27 -0700
                Re: Seeking help with relative and absolute paths Jerry Stuckle <jstucklex@attglobal.net> - 2013-03-24 12:24 -0400

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