php how to view class variable in script?

Question

the class, which is content.php

class content
{
    private $vars = array();

    public function set($var, $var_value)
    {
        $this->vars[$var] = $var_value;
    }

index.php file using the content class

include 'content.php';
$instance = new content();
$instance->set(image_dir, '/images/');
include 'display.php';

display.php

<?php

echo '<img src={image_dir}/graphic.gif width=556 height=49></td>"';

How do I use the content->var variable in the display.php? which is the best way?

Logan Serman · Accepted Answer · 2012-03-27 22:12:18Z

3

You should use a getter.

class content
{
    private $vars = array();

    public function set($var, $var_value)
    {
        $this->vars[$var] = $value;
    }

    public function getImageDir()
    {
         return $this->vars['image_dir'];
    }
}

And then:

include 'content.php';
$instance = new content();
$instance->set(image_dir, '/images/');
$image_dir = $instance->getImageDir();
include 'display.php';

answered Mar 27, 2012 at 22:12

Logan Serman

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Comments

Paul · Accepted Answer · 2012-03-27 22:14:00Z

2

Add a getter to your class:

class content
{
    private $vars = array();

    public function set($var, $var_value)
    {
        $this->vars[$var] = $var_value;
    }

    public function get($var)
    {
        return $this->vars[$var];
    }

}

Then you can use it like:

$instance->get(image_dir);

Note that if image_dir is not a constant IE. define('image_dir', '../images/blah'); then it should be in quotes.

answered Mar 27, 2012 at 22:14

Paul

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Comments

haltabush · Accepted Answer · 2012-03-27 22:11:45Z

1

What about using a get() method in your class?

public function get($var)
{
    return $this->vars[$var];
}

Maybe you can have a look to the magic method __call() too

answered Mar 27, 2012 at 22:11

haltabush

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Comments

Jayyrus · Accepted Answer · 2012-03-27 22:11:50Z

1

just do in content class:

public function getVar(){
   return $this->vars;
}

and in index.php

echo '<img src='.$content->getVar()['image_dir'].'/graphic.gif width=556 height=49></td>"';

answered Mar 27, 2012 at 22:11

Jayyrus

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1 Comment

haltabush Over a year ago

This won't works, except for PHP 5.4 (unfortunately, I still have to wait to use it :( )

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