I have a page that receives POST data from a form. I also have a form validation class that attempts to access the $_POST array when a FormValidation object is created on the page. However, the FormValidation object does not seem to have access to the $_POST array. Why is this happening, and how can I fix this?
EDIT: Added code :)
This code is from register.php
if($_SERVER['REQUEST_METHOD'] == 'POST')
{
var_dump($_POST);
$errors = validate_form();
if(count($errors) > 0)
{
display($errors);
}
else
{
act();
}
}
else
{
display();
}
function validate_form()
{
$validator = new FormValidation('POST');
$validator->add_field('first_name', 'First Name');
$validator->add_field('last_name', 'Last Name');
$validator->add_field('email_address', 'Email Address');
$validator->add_field('password', 'Password');
$validator->add_field('password_confirmation', 'Password Confirmation');
$validator->add_rule('first_name', 'required');
$validator->add_rule('last_name', 'required');
$validator->add_rule('email_address', 'required');
$validator->add_rule('email_address', 'is_valid_scarsdaleschools_email');
$validator->add_rule('password', 'required');
$validator->add_rule('password_confirmation', 'required');
$validator->add_rule('password_confirmation', 'matches', array('password', 'Password'));
return $validator->validate();
}
The form validation code looks like this
class FormValidation
{
var $fields;
var $rules; //Associative array that maps field_name to array of rules
var $errors;
var $form_method_type;
function FormValidation($form_method_type)
{
$this->form_method_type = strtoupper($form_method_type);
$this->fields = array(); //maps fields to field labels
$this->rules = array();
$this->errors = array();
}
function validate()
{
foreach(array_keys($this->fields) as $field_name)
{
if(!array_key_exists($field_name, $this->rules))
{
continue;
}
foreach(array_keys($this->rules[$field_name]) as $rule_name)
{
call_user_func_array(array($this, $rule_name), $this->rules[$field_name][$rule_name]);
}
}
return $this->errors;
}
function add_field($field_name, $field_label)
{
$this->fields[$field_name] = $field_label;
}
function add_rule($field_name, $rule_name, $parameters=array())
{
if(!isset($this->rules[$field_name]))
{
$this->rules[$field_name] = array();
}
array_unshift($parameters, $field_name, $this->fields[$field_name]);
$this->rules[$field_name][$rule_name] = $parameters;
}
function var_isset($field_name)
{
global ${'$_' . $this->form_method_type};
var_dump(${'$_' . $this->form_method_type}[$field_name]);
return isset(${'$_' . $this->form_method_type}[$field_name]);
}
function get_value($field_name)
{
global ${'$_' . $this->form_method_type};
return ${'$_' . $this->form_method_type}[$field_name];
}
////////////////////////////////////////////////////////////
/////RULES//////////////////////////////////////////////////
////////////////////////////////////////////////////////////
function required($field_name, $field_label)
{
if(!$this->var_isset($field_name))
{
$this->errors[$field_name] = "$field_label is a required field";
}
}
function is_valid_email($field_name, $field_label)
{
if($this->var_isset($field_name))
{
if(!validEmail($this->get_value($field_name)))
{
$this->errors[$field_name] = "$field_label requires a valid email address";
}
}
}
function is_alpha($field_name, $field_label)
{
if($this->var_isset($field_name))
{
if(!ctype_alpha($this->get_value($field_name)))
{
$this->errors[$field_name] = "$field_label requires alphabetical characters only";
}
}
}
function is_alphanumeric($field_name, $field_label)
{
if($this->var_isset($field_name))
{
if(!ctype_alnum($this->get_value($field_name)))
{
$this->errors[$field_name] = "$field_label requires alphanumeric characters only";
}
}
}
function is_integer_number($field_name, $field_label)
{
if($this->var_isset($field_name))
{
if(!is_int($this->get_value($field_name)) || preg_match('[-+]?[0-9]+', $this->get_value($field_name)) == 0)
{
$this->errors[$field_name] = "$field_label must be an integer";
}
}
}
function is_float_number($field_name, $field_label)
{
if($this->var_isset($field_name))
{
if(!is_float($this->get_value($field_name)) || preg_match('[-+]?[0-9]*\.?[0-9]+', $this->get_value($field_name)) == 0)
{
$this->errors[$field_name] = "$field_label must be a number";
}
}
}
function is_valid_scarsdaleschools_email($field_name, $field_label)
{
if($this->var_isset($field_name))
{
if(!validEmail($this->get_value($field_name)))
{
$this->errors[$field_name] = "$field_label requires a valid email address";
}
$email = $this->get_value($field_name);
if(!(endsWith($email, 'scarsdaleschools.org', $case=false) || endsWith($email, 'scarsdaleschools.com', $case=false) || endsWith($email, 'scarsdaleschools.k12.ny.edu', $case=false)))
{
$this->errors[$field_name] = "$field_label requires a Scarsdale Schools email address";
}
}
}
function max_length($field_name, $field_label, $max_length)
{
if($this->var_isset($field_name))
{
if(strlen($this->get_value($field_name)) > $max_length)
{
$this->errors[$field_name] = "$field_label cannot be longer than $max_length characters";
}
}
}
function min_length($field_name, $field_label, $min_length)
{
if($this->var_isset($field_name))
{
if(strlen($this->get_value($field_name)) > $min_length)
{
$this->errors[$field_name] = "$field_label must be at least $min_length characters";
}
}
}
function matches($field_name, $field_label, $match_field_name, $match_field_label)
{
if($this->var_isset($field_name) && !$this->var_isset($match_field_name))
{
$this->errors[$field_name] = "$field_label must match $match_field_label";
}
elseif(!$this->var_isset($field_name) && $this->var_isset($match_field_name))
{
$this->errors[$field_name] = "$field_label must match $match_field_label";
}
if($this->var_isset($field_name) && $this->var_isset($match_field_name))
{
if(strcmp($this->get_value($field_name), $this->get_value($match_field_name)) != 0)
{
$this->errors[$field_name] = "$field_label must match $match_field_label";
}
}
}
}
Thanks for the help!