passing parameters to php include/require construct

user_251843 0
Viewed 44272

I've read quite a few posts that are very similar to the question I'm about to ask, but I just wanted to be sure that there wasn't a more sophisticated way to do this. Any feedback is greatly appreciated.

I want to create a mechanism to check whether or not a logged-in user has access to the php script that is currently being called. If so, the script will continue on; if not, the script just fails out using something like die('you have no access').

I came up with two ways of accomplishing this:

(please assume my session stuff is coded/working fine - i.e. I call session_start(), set up the session vars properly and etc)

  1. Define a global variable first, then check the global variable in a required header file. For example:

    Content of current_executing_script.php: 

    // the role the logged in user must have to continue on   
$roleNeedToAccessThisFile = 'r';
require 'checkRole.php''

    Content of checkRole.php: 

    if ($_SESSION['user_role'] != $roleNeedToAccessThisFile) die('no access for you');

  2. Define a function within the header file and call the function immediately after including/requiring it:

    Content of checkRole.php:

    function checkRole($roleTheUserNeedsToAccessTheFile) {
    return ($_SESSION['user_role'] == $roleTheUserNeedsToAccessTheFile);
}

    Content of current_executing_script.php: 

    require 'checkRole.php';
checkRole('r') or die('no access for you');

I'm wondering if there is a way to basically just pass a parameter to checkRole.php as part of the include or require construct?

Thanks in advance.

require parameters include php
4 Answers

Include with parameters

This is something I've used on my recent Wordpress project

Make a function functions.php:

function get_template_partial($name, $parameters) {
   // Path to templates
   $_dir = get_template_directory() . '/partials/';
   // Unless you like writing file extensions
   include( $_dir . $name . '.php' );
}

Get parameters in cards-block.php: 

// $parameters is within the function scope
$args = array(
    'post_type' => $parameters['query'],
    'posts_per_page' => 4
);

Call the template index.php:

get_template_partial('cards-block', array(
    'query' => 'tf_events'
));

If you want a callback

For example, the total count of posts that were displayed:

Change functions.php to this:

function get_template_partial($name, $parameters) {
   // Path to templates
   $_dir = get_template_directory() . '/partials/';
   // Unless you like writing file extensions
   include( $_dir . $name . '.php' );
   return $callback; 
}

Change cards-block.php to this: 

// $parameters is within the function scope
$args = array(
    'post_type' => $parameters['query'],
    'posts_per_page' => 4
);
$callback = array(
    'count' => 3 // Example
);

Change index.php to this:

$cardsBlock = get_template_partial('cards-block', array(
    'query' => 'tf_events'
)); 

echo 'Count: ' . $cardsBlock['count'];
user_41635380

You could have the required file return an anonymous function, and then call it immediately after.

//required.php

$test = function($param)
{
    //do stuff
}

return $test

//main.php
$testing = require 'required.php';
$testing($arg);
user_21373160

In the past, many people have disagreed with this approach. But I think it is a matter of opinion.

You can't pass _GET or _POST param via a require() or include() , but you can you first set a _SESSION key/value and pull it on the other side.

user_35090000
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