Tag Archives: PHP

Magento 2 Hide Price

Basically we have to override class ‘Magento\Catalog\Pricing\Render\FinalPriceBox ‘ to achieve this. Here I am creating an extension ‘PHPCodez_Hideprice’ that will allow you to hide price from certain user groups and diaplay a text inplace of price.

1) Declare a module

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
<module name="PHPCodez_Hideprice" setup_version="0.0.1" />
</config>

2) Register a module. Continue reading Magento 2 Hide Price

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Magento 2 Source Model All Customer Groups

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;
}
}
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Current Customer Group Magento 2

<?php
namespace PHPCodez\Disableaddtocart\Helper;

use \Magento\Framework\App\Helper\AbstractHelper;
use \Magento\Customer\Model\Session;

class Data extends AbstractHelper {

protected $_customerSession;

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

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


}
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System Configuration Values Helpers Magento 2

<?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;
}


}
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Serializing Objects

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

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__clone()

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";
?>
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SSL

• 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

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Cookies

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

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