Tag Archives: PHP

Magento 2 Source Model All Customer Groups

June 4, 2018 Pramod T P Leave a comment

You can use the source model <source_model>Magento\Customer\Model\Config\Source\Group\Multiselect</source_model> to get the customer groups.

But its does not return the group ‘NOT LOGGED IN’ .so I have created new model to have ‘NOT LOGGED IN’ in the list.

<source_model>PHPCodez\Hideprice\Model\Config\Source\Group\Multiselect</source_model>

<?php
namespace PHPCodez\Hideprice\Model\Config\Source\Group;
use \Magento\Customer\Model\ResourceModel\Group\Collection;

class Multiselect implements \Magento\Framework\Option\ArrayInterface {

protected $_customerGroup;

protected $_options;

public function __construct( Collection $customerGroup ) {
$this->_customerGroup = $customerGroup;
}

public function toOptionArray() {
if (!$this->_options) {
$this->_options = $this->_customerGroup->toOptionArray();
}
return $this->_options;
}
}

Magento

System Configuration Values Helpers Magento 2

June 4, 2018 Pramod T P Leave a comment

<?php
namespace PHPCodez\Disableaddtocart\Helper;

use \Magento\Framework\App\Helper\AbstractHelper;
use \Magento\Framework\App\Config\ScopeConfigInterface;
use \Magento\Store\Model\ScopeInterface;
use \Magento\Customer\Model\Session;

class Data extends AbstractHelper {

protected $_scopeConfig;
protected $_customerSession;

public function __construct(ScopeConfigInterface $_scopeConfig,Session $_customerSession) {
$this->_scopeConfig = $_scopeConfig;
$this->_customerSession = $_customerSession;
}

public function getDisabledGroups($scope = ScopeConfigInterface::SCOPE_TYPE_DEFAULT) {
$disabledGroups = $this->_scopeConfig->getValue('phpcodez/parameters/disableaddtocart',ScopeInterface::SCOPE_STORE);
return $disabledGroups;
}

public function getCustomerGroup(){
return $this->_customerSession->isLoggedIn()?$this->_customerSession->getCustomer()->getGroupId():0;
}


}

Magento

Disable Frontend Registration Magento 2

May 18, 2018 Pramod T P 3 Comments

Basically we have to override the function \Magento\Customer\Model\Registration::isAllowed() to achieve this.

Follow the below steps to create an extension PHPCodez_Disableregistration for this task. Continue reading Disable Frontend Registration Magento 2 →

PHP

Serializing Objects

May 11, 2018 Pramod T P Leave a comment

o Functions: serialize() / unserialize()

o Magic method __sleep() is executed with serialization, if available o allows you to specify which properties should be stored (serialized) and which should not be stored

o Can also create/change properties for serialization

o Magic method __wakeup() is executed with deserialization, if available ex: to open a database connection unique to the object

PHP

__clone()

May 11, 2018 Pramod T P Leave a comment

Object cloning is creating a copy of an object. An object copy is created by using the clone keyword and the __clone() method cannot be called directly. In PHP, cloning an object is doing a shallow copy and not a deep copy. Meaning, the contained objects of the copied objects are not copied. If you wish for a deep copy, then you need to define the __clone() method.

When an object is cloned, PHP 5 will perform a shallow copy of all of the object’s properties. Any properties that are references to other variables will remain references.

Once the cloning is complete, if a __clone() method is defined, then the newly created object’s __clone() method will be called, to allow any necessary properties that need to be changed.

<?php
 class Customer {
 private $name;
 
 public function setName($name) {
 $this->name = $name;
 }
 
 public function getName() {
 return $this->name;
 }
 
 public function __clone() {
 $c = new Customer();
 $c->setName($this->name);
 return $c;
 }
 
 }
 
 $c1 = new Customer();
 $c1->setName("phpcode");
 
 $c2 = clone $c1;

$c2->setName("phpcodez");
 
 echo $c1->getName()."\n";
 echo $c2->getName()."\n";
?>

General

SSL

May 11, 2018 Pramod T P Leave a comment

• Secure Socket Layer (ssl) encryption protects data as it is transmitted between client and server

• SSH (secure shell protocol) encrypts the network connection between the client and the database server

• Augment data encryption as ciphertext using openssl_encrypt() and openssl_decrypt()

• Encrypt data before insertion and decrypt with retrieval

• Store sensitive data as a hashed value

PHP

Cookies

May 11, 2018 Pramod T P Leave a comment

Way of storing data in a browser to id / track a user . Create (set) cookies with the setcookie() or setrawcookie() function and It must be called before sending any output to browser .

It can delay script output using output buffering, to allow time to decide to set cookies or send headers

Setcookie() params are defined according to specifications:

$name=value string
$value=value string
$expire=date optional; default is session end
$path=path specifies urls in a domain for which cookie is valid
$domain=domain_name check on domain attributes of cookies against host internet domain name
$secure cookie only transmitted via secure channels (https); boolean
$httponly cookie only made accessible via http protocol, not javascript; boolean

Access with $_cookie or $_request superglobals . Cookie data from the client is automatically sent to $_cookie, if params of variables_order() include “c” (environment/get/post/cookie/server) . It will overwrite itself if name, path, domain, secure, and http_only are identical .

Cookies are part of the http header o as with sessions, multiple values can be assigned to an array and To assign all values to only one cookie, can use serialize() or implode() with first value

PHP

Decoding

May 11, 2018 Pramod T P Leave a comment

Implement at key stages in form submission process.

html interpretation: htmlspecialchars() function encodes special characters in data, as a security measure

URL : encode data with urldecode() to decodes URL-encoded string

Beginners' Guide