creating fly variable - php

Question

Need load parameters to function, creating a variable name on the fly terrible thing, but I do not see another solution. This code contains an error please help
<?php
class A{
public $vars;
public $tab_names;
public $tab_names = array('car'=>'audi', 'honda' => 'name');
public $tab_fruits = array('name'=>'banana', 'banana'=>'fruit');
public function load($varr){
$$varr;
$this->vars = $varr;
}
public function display(){
return $this->vars;
}
}
$ob = new A;
$ob->load('tab_names');
$ob->display();
?>

Answer 1

Like this?
public function load($varr){
$this->vars = $this->$varr;
}

Answer 2

You should create separate methods to return the disparate types of data. They can be wrappers for the "real" function, if necessary:
public function displayCars() {
return $this->tab_names;
}
public function displayFruit() {
return $this->tab_fruits;
}
This will obviate the need for variable variables.

Answer 3

I don't think you can set the value of an variable at the start
public $tab_names = array('car'=>'audi', 'honda' => 'name');
public $tab_fruits = array('name'=>'banana', 'banana'=>'fruit');
which should be
public $tab_names;
public $tab_fruits;
then
class A {
public $vars;
public $variables;
public $tab_names;
public $tab_fruits;
public function __construct($variables){
$this->variables = $variables;
}
public function load($varr){
$this->vars = $this->variables[$varr];
}
public function display(){
return $this->vars;
}
}
$variables = array();
$variables['tab_names'] = array('car'=>'audi', 'honda' => 'name');
$variables['tab_fruits'] = array('name'=>'banana', 'banana'=>'fruit');
$ob = new A($variables);
$ob->load('tab_names');
print_r($ob->display());

Answer 4

This is how I would do it:
class A {
public $loaded_vars;
public static $vars = array(
'tab_names' => array('car'=>'audi', 'honda' => 'name'),
'tab_fruits' => array('name'=>'banana', 'banana'=>'fruit')
);
public function load( $name ){
$this->loaded_vars = self::$vars[ $name ];
}
public function display() {
return $this->loaded_vars;
}
}
$ob = new A;
$ob->load( 'tab_names' );
$ob->display();