Rcb4HhU8

1<?php
2//class for validation user Input
3class Validate{
4  //in here we declare 3 property
5  //passed for check if passed true or false
6     private $_passed = false ,
7     //error for reyturn bunch of error
8             $_errors = array(),
9             //db is our connection for create new user
10             $_db    = NULL;
11
12//now here we construct our connection for new user
13       public function __construct()
14       {
15         $this->_db = DB::getInstance();
16       }
17
18//our check method for validation we need 2 parameter
19//source which is POST or GET
20//items which is value
21       public function check($source,$items = array())
22       {
23         //now here items is username then we access to rule which like required
24         foreach ($items as $item => $rules) {
25           //then again we access to rules set like min => 2 so $rule_value is 2
26           foreach ($rules as $rule => $rule_value) {
27             //so now the value is teh item source : $_POST['username']
28             //and also for dont have any whitespace we use trim
29              $value =trim($source[$item]);
30              $item = escape($item);
31              //now we should create our condition
32              if ($rule === 'required' && empty($value)) {
33                    $this->addError("{$item} is Required");
34
35              //now we use switch for other rules
36              }elseif (!empty($value)) {
37                switch ($rule) {
38                  //check min
39                  case 'min':
40                      if (strlen($value) < $rule_value) {
41    $this->addError("{$item} must be minimum of {$rule_value} characters.");
42                      }
43                    break;
44                    //check max
45                  case 'max':
46                  if (strlen($value) > $rule_value) {
47    $this->addError("{$itme} must be maximum of {$rule_value} characters.");
48                  }
49                    break;
50                 case 'matches':
51    //here we say if value of matches which is password2 not equal
52    //to post value which is password1
53                   if ($value != $source[$rule_value]) {
54                 $this->addError("{$rule_value} Must be match to {$item}");
55                   }
56                  break;
57                 case 'unique':
58  //now for unique value we use our get method from our DB class and
59  //it has 2 parameters first table , sec is where so
60  //table as we declare is rule_value users and where is
61  //$item which is username is = to $value which could be anythig
62
63                    $check = $this->_db->get($rule_value,array(
64                      $item , '=' , $value
65                    ));
66                    //if it has count means its exists
67                    if ($check->count()) {
68                      //so we bring error
69                      $this->addError("{$item} is already exists");
70                    }
71                   break;
72                }
73              }
74           }
75         }
76         //if it has no error we make it true for passed
77         if (empty($this->_errors)) {
78            $this->_passed = true;
79         }
80         return $this;
81       }
82       //method for add error to item
83       private function addError($error){
84         $this->_errors[] = $error ;
85       }
86       //method for return errors
87       public function errors()
88       {
89         return $this->_errors;
90       }
91       //method for check passed and if its true make
92       //it true otherwise its always false
93       public function passed()
94       {
95         return $this->_passed;
96       }
97}
98
99
100 ?>