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validationdata validation library
<?php
namespace Cake\Validation;
use ReflectionClass;
class RulesProvider
{
    /**
     * The class/object to proxy.
     *
     * @var mixed
     */
    protected $_class;
    /**
     * The proxied class' reflection
     *
     * @var \ReflectionClass
     */
    protected $_reflection;
    /**
     * Constructor, sets the default class to use for calling methods
     *
     * @param string $class the default class to proxy
     */
    public function __construct($class = '\Cake\Validation\Validation')
    {
        $this->_class = $class;
        $this->_reflection = new ReflectionClass($class);
    }

We know that in the process of using the language, we will definitely pay attention to the security issues in the actual development process. So, today we will introduce to you the verification class library, the primary measure to ensure PHP security. Data verification is the most important habit you may adopt. And when it comes to input, it's very simple: don't trust the user. When validating data to secure PHP, remember that it's often easier to design and validate the values ​​your application allows than to protect against all unknown values.


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