Need help with php

[Andy_Kemp]

In Wordpress there is this code

<?php $user_info = get_userdata(1);
      echo 'Username: ' . $user_info->user_login . "\n";
      echo 'User roles: ' . implode(', ', $user_info->roles) . "\n";
      echo 'User ID: ' . $user_info->ID . "\n";
?>

My question is how they get this?

$user_info->user_login 

My code

class Config {
	
    private $db;
	
    public function __construct($db) {
		
        $this->db = $db;
		
    }
	
    public function get() {
		
	$query = 'SELECT * FROM config';
	$select = $this->db->query($query);
		
	$config = array();
	while ($row = $select->fetch(PDO::FETCH_OBJ)) {
	    $config[$row->config] = $row->value;	
	}
		
	return $config;
		
    }
	
}

$config = new Config($db);
$conf = $config->get();
print $conf['test'];

Now i liked to do same way like wordpress

 

Instead of this

$conf['test'];

i'd like to get result like this

$conf->test;

[cyberRobot]

You would use a class property. More information can be found here:

http://php.net/manual/en/language.oop5.properties.php

[ginerjm]

You're talking about a minor difference in notation/handling here. Is it necessary? Really? Or you just like the look of it.

 

If you need to do it, add a public property to your class. Then instead of assigning the query result to an array assign it to the caller's property. Voila.

 

Of course if you don't understand this, maybe you don't want to get into OOP

[Destramic]

your not going to achieve $conf->test when selecting multiple rows.

 

i'd stick with $config['test'] mate

[ginerjm]

Hah!! Never even looked at his query. Good point!

[Psycho]

your not going to achieve $conf->test when selecting multiple rows.

 

i'd stick with $config['test'] mate

 

Of course you can. Create an object with a different property for each 'config' name. (EDIT: Note that it does not have to be the same object used to get the data. Instead create a 'standard' dynamic class in which to populate the data and return to the caller)

 

 

 

Not tested, but the logic should be sound

class Config {
    
    private $dbObj;
    
    public function __construct($db) {
        //Set db object
        $this->dbObj = $db;
        //Call get method and return result
        return $this->get();
    }
    
    public function get() {
        //Run query to get data
        $query = 'SELECT config, value FROM config';
        $select = $this->dbObj->query($query);
        //Create object and populate with query results
        $configObj = new stdClass();
        while ($row = $select->fetch(PDO::FETCH_OBJ)) {
            $configObj->$row->config = $row->value;
        }
        //Return object
        return $configObj;
    }
}
 
$config = new Config($db);
echo $config->test; //Where 'test' is the name of any 'config' field from the DB results
 

Edited July 21, 2016 by Psycho