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Re: Nested PHP

From Arno Welzel <usenet@arnowelzel.de>
Newsgroups comp.lang.php
Subject Re: Nested PHP
Date 2014-03-02 15:54 +0100
Message-ID <5313461D.70508@arnowelzel.de> (permalink)
References <1lgvceg.n1ow4ilfgsk0N%adrian@poppyrecords.invalid.invalid>

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Adrian Tuddenham, 2014-02-10 21:24:

> I am using a php program to generate and download a webpage as an HTML
> file, the HTML file draws its headers and navigation bar from another
> HTML file using some embedded php with an "include" command.
> 
> The embedded php doesn't run when the file is downloaded, so the page
> appears in the browser without its headers or navigation.

PHP is only executed on the *server*. Any PHP which is "dynamically"
added as output will *not* be executed at all.

Example - if you have a file "test.php" and request it using the browser
via http://mydomain.example/test.php:

<?php
echo "Test";
?>

This will just output "Test".

BUT: If the same will adds additional PHP code it will just be sent to
the browser without any interpetation by the PHP runtime:

<?php
echo "echo \"My embedded test\";";
?>

If you really need to execute "dynamic" PHP, you have to use eval(),
which executes the code passed as parameter:

<?php
$mycode = "echo \"My embedded test\";";

eval($mycode);
?>

Even though this may work - the problem with eval() is, that it is
horrible to debug. You don't have just a script but a script generating
another script which will then be executed.

I recommend to think about what you want to solve and if it is really
neccessary to create "dyanamic" PHP on the fly.



-- 
Arno Welzel
http://arnowelzel.de
http://de-rec-fahrrad.de
http://fahrradzukunft.de

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Thread

Nested PHP adrian@poppyrecords.invalid.invalid (Adrian Tuddenham) - 2014-02-10 20:24 +0000
  Re: Nested PHP Jerry Stuckle <jstucklex@attglobal.net> - 2014-02-10 15:56 -0500
    Re: Nested PHP adrian@poppyrecords.invalid.invalid (Adrian Tuddenham) - 2014-02-10 21:44 +0000
      Re: Nested PHP Jerry Stuckle <jstucklex@attglobal.net> - 2014-02-10 16:51 -0500
        Re: Nested PHP "Peter H. Coffin" <hellsop@ninehells.com> - 2014-02-11 08:14 -0600
          Re: Nested PHP Jerry Stuckle <jstucklex@attglobal.net> - 2014-02-11 09:27 -0500
            Re: Nested PHP "Peter H. Coffin" <hellsop@ninehells.com> - 2014-02-11 18:41 -0600
              Re: Nested PHP Jerry Stuckle <jstucklex@attglobal.net> - 2014-02-11 20:03 -0500
                Re: Nested PHP adrian@poppyrecords.invalid.invalid (Adrian Tuddenham) - 2014-02-12 10:13 +0000
                Re: Nested PHP Tim Streater <timstreater@greenbee.net> - 2014-02-12 10:33 +0000
                Re: Nested PHP Jerry Stuckle <jstucklex@attglobal.net> - 2014-02-12 06:30 -0500
                Re: Nested PHP adrian@poppyrecords.invalid.invalid (Adrian Tuddenham) - 2014-02-12 12:52 +0000
                Re: Nested PHP The Natural Philosopher <tnp@invalid.invalid> - 2014-02-12 13:11 +0000
                Re: Nested PHP Denis McMahon <denismfmcmahon@gmail.com> - 2014-02-13 06:55 +0000
                Re: Nested PHP "Peter H. Coffin" <hellsop@ninehells.com> - 2014-02-13 12:02 -0600
                Re: Nested PHP Stefan+Usenet@Froehlich.Priv.at (Stefan Froehlich) - 2014-02-12 12:14 +0000
      Re: Nested PHP The Natural Philosopher <tnp@invalid.invalid> - 2014-02-10 22:09 +0000
      Re: Nested PHP Christoph Michael Becker <cmbecker69@arcor.de> - 2014-02-10 23:23 +0100
      Re: Nested PHP Tim Streater <timstreater@greenbee.net> - 2014-02-10 22:27 +0000
      Re: Nested PHP Geoff Muldoon <geoff.muldoon@trap.gmail.com> - 2014-02-11 09:30 +1100
      Re: Nested PHP Denis McMahon <denismfmcmahon@gmail.com> - 2014-02-10 23:06 +0000
        Re: Nested PHP Jerry Stuckle <jstucklex@attglobal.net> - 2014-02-10 20:46 -0500
          Re: Nested PHP adrian@poppyrecords.invalid.invalid (Adrian Tuddenham) - 2014-02-11 10:11 +0000
            Re: Nested PHP Tim Streater <timstreater@greenbee.net> - 2014-02-11 11:17 +0000
              Re: Nested PHP adrian@poppyrecords.invalid.invalid (Adrian Tuddenham) - 2014-02-11 12:01 +0000
                Re: Nested PHP Tim Streater <timstreater@greenbee.net> - 2014-02-11 12:45 +0000
                Re: Nested PHP Christoph Michael Becker <cmbecker69@arcor.de> - 2014-02-11 13:55 +0100
                Re: Nested PHP Denis McMahon <denismfmcmahon@gmail.com> - 2014-02-11 13:29 +0000
                Re: Nested PHP adrian@poppyrecords.invalid.invalid (Adrian Tuddenham) - 2014-02-11 14:31 +0000
                Re: Nested PHP Denis McMahon <denismfmcmahon@gmail.com> - 2014-02-11 17:24 +0000
            Re: Nested PHP Jerry Stuckle <jstucklex@attglobal.net> - 2014-02-11 08:15 -0500
              Re: Nested PHP adrian@poppyrecords.invalid.invalid (Adrian Tuddenham) - 2014-02-11 14:31 +0000
                Re: Nested PHP Jerry Stuckle <jstucklex@attglobal.net> - 2014-02-11 10:10 -0500
                Re: Nested PHP adrian@poppyrecords.invalid.invalid (Adrian Tuddenham) - 2014-02-11 15:31 +0000
                Re: Nested PHP Jerry Stuckle <jstucklex@attglobal.net> - 2014-02-11 11:24 -0500
                Re: Nested PHP adrian@poppyrecords.invalid.invalid (Adrian Tuddenham) - 2014-02-12 10:13 +0000
                Re: Nested PHP Jerry Stuckle <jstucklex@attglobal.net> - 2014-02-12 06:33 -0500
                Re: Nested PHP Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-02-11 15:26 +0000
            Re: Nested PHP Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-02-11 14:41 +0000
              Re: Nested PHP adrian@poppyrecords.invalid.invalid (Adrian Tuddenham) - 2014-02-11 15:31 +0000
                Re: Nested PHP Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-02-11 15:53 +0000
                Re: Nested PHP Jerry Stuckle <jstucklex@attglobal.net> - 2014-02-11 11:26 -0500
      Re: Nested PHP bill <william@TechServSys.com> - 2014-02-11 07:12 -0500
  Re: Nested PHP richard <noreply@example.com> - 2014-02-12 09:33 -0500
    Re: Nested PHP Denis McMahon <denismfmcmahon@gmail.com> - 2014-02-13 06:47 +0000
      Re: Nested PHP Scott Johnson <noonehome@chalupasworld.com> - 2014-02-13 05:01 -0800
        Re: Nested PHP Evan Platt <evan@theobvious.espphotography.com.invalid> - 2014-02-14 07:19 -0800
          Re: Nested PHP Scott Johnson <noonehome@chalupasworld.com> - 2014-02-14 10:43 -0800
  Re: Nested PHP Arno Welzel <usenet@arnowelzel.de> - 2014-03-02 15:54 +0100
    Re: Nested PHP adrian@poppyrecords.invalid.invalid (Adrian Tuddenham) - 2014-03-02 18:10 +0000
    Re: Nested PHP The Natural Philosopher <tnp@invalid.invalid> - 2014-03-03 11:38 +0000
      Re: Nested PHP Arno Welzel <usenet@arnowelzel.de> - 2014-03-17 15:26 +0100
        Re: Nested PHP Jerry Stuckle <jstucklex@attglobal.net> - 2014-03-17 10:52 -0400
        Re: Nested PHP The Natural Philosopher <tnp@invalid.invalid> - 2014-03-17 15:33 +0000
          Re: Nested PHP "Peter H. Coffin" <hellsop@ninehells.com> - 2014-03-17 17:10 -0500
            Re: Nested PHP The Natural Philosopher <tnp@invalid.invalid> - 2014-03-17 23:01 +0000
              Re: Nested PHP Christoph Michael Becker <cmbecker69@arcor.de> - 2014-03-18 00:31 +0100
                Re: Nested PHP The Natural Philosopher <tnp@invalid.invalid> - 2014-03-18 13:10 +0000
  Re: Nested PHP Gabe <usenet@moojuice.net> - 2014-03-17 15:18 +0000

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