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Homework and Emergencies Homework & Coursework Questions Passing shell variables to a webpage Post 302581282 by ChedWick on Monday 12th of December 2011 03:27:10 PM
Old 12-12-2011
Quote:
Originally Posted by Corona688
Does this variable actually exist anywhere, or is it just sitting in some file?
Firstly, thanks for posting I really appreciate any help.

Now at the moment in my simple example the variable is just sitting within that script in my cgi directory. I have another file (at this point its simply a html file) in my public web directory.

Quote:
What do you need to be able to do with this variable? Shell variables only make sense in a shell...
Well with my project I need to retrieve a variable from my server script and apply it to the webpage that the user is viewing so that it can dynamically create an svg graph (a rather ghetto graph with simple shapes). But for my simple example I just want to be able to load my html file and have a variable get assigned to the value of a simple variable in my shell script and then either print it or alert it.


Quote:
You could export the variable, then have your PHP executed like this:

Code:
# variable file

export A="asdf"

Code:
#!/bin/sh

. variablefile

/usr/lib/php5.3/bin/php <<EOF
<?php
        printf("variable A is %s\n", getenv("A")); ?>
EOF

exit

But I get the feeling you want to have more control over the variable than that, you need to set and retrieve it when you please, not just when first executed, and do so in a manner safe across several connections.
Thanks for that advice. I'll look into some of those techniques. Ideally I'm just looking to have the variable set and retrieved when the page is loaded or refreshed. I'm also not too worried about safe transfers with this project but it certainly good to keep that in mind for the future.

Now after talking to some of my classmates I might have found a way that may help. I'm gonna play around with what you've given me here as well as some AJAX and hopefully get somewhere. I'll post back later if I get what I want done.
 

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Dist::Zilla::Plugin::TemplateModule(3pm)		User Contributed Perl Documentation		  Dist::Zilla::Plugin::TemplateModule(3pm)

NAME
Dist::Zilla::Plugin::TemplateModule - a simple module-from-template plugin VERSION
version 4.300020 DESCRIPTION
This is a ModuleMaker used for creating new Perl modules files when minting a new dist with "dzil new". It uses Text::Template (via Dist::Zilla::Role::TextTemplate) to render a template into a Perl module. The template is given two variables for use in rendering: $name, the module name; and $dist, the Dist::Zilla object. The module is always created as a file under ./lib. By default, the template looks something like this: use strict; use warnings; package {{ $name }}; 1; ATTRIBUTES
template The "template" parameter may be given to the plugin to provide a different filename, absolute or relative to the build/profile directory. If this parameter is not specified, this module will use the boilerplate module template included in this module. MINTING CONFIGURATION
This module is part of the standard configuration of the default Dist::Zilla Minting Profile, and all profiles that don't set a custom ':DefaultModuleMaker' so you don't need to normally do anything to configure it. dzil new Some::Module # creates ./Some-Module/* # creates ./Some-Module/lib/Some/Module.pm However, for those who wish to configure this ( or any subclasses ) this is presently required: [TemplateModule / :DefaultModuleMaker] ; template = SomeFile.pm AUTHOR
Ricardo SIGNES <rjbs@cpan.org> COPYRIGHT AND LICENSE
This software is copyright (c) 2012 by Ricardo SIGNES. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. perl v5.14.2 2012-06-21 Dist::Zilla::Plugin::TemplateModule(3pm)
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