Code Explainers

Php code explainers

php
<?php
 
final class ProductRepository
{

Safe SQL pagination with PDO in PHP

pagination input-validation prepared-statements
Intermediate 7 steps
php
<?php
 
namespace App\Http\Requests;
 

How a Laravel FormRequest validates input

validation form-request input-sanitization
Intermediate 6 steps
php
<?php
 
final class CsrfGuard
{

Building a per-form CSRF guard in PHP

csrf security sessions
Intermediate 8 steps
php
<?php
 
namespace App\Models;
 

Polymorphic comments in Laravel with morphTo

polymorphism eloquent relationships
Intermediate 5 steps
php
<?php
 
namespace App\Http\Middleware;
 

Enforcing a JSON Accept header in Laravel

middleware content-negotiation http-headers
Beginner 5 steps
php
<?php
 
function verifyJwt(string $token, string $secret): array
{

Verifying an HS256 JWT in PHP

jwt hmac authentication
Intermediate 9 steps
php
<?php
 
class Entity
{

PHP magic methods for dynamic attributes

magic-methods overloading encapsulation
Intermediate 6 steps
php
<?php
 
namespace App\Models;
 

Accessors, mutators & casts in a Laravel model

eloquent accessors mutators
Intermediate 6 steps